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  • Question 1 - A 4-year-old girl, Lily, is taken to the pediatrician by her father. He...

    Correct

    • A 4-year-old girl, Lily, is taken to the pediatrician by her father. He is concerned about an umbilical hernia that Lily has had since birth. He was told that it would likely go away on its own, but it has not yet resolved. The pediatrician conducts an examination and finds a 1.5 cm umbilical hernia that is easily reducible. What is the most suitable course of action for managing this, according to the guidelines?

      Your Answer: Delaying referral for elective outpatient surgical repair until 5 years of age, if still unresolved

      Explanation:

      According to medical guidelines, umbilical hernias in children usually close on their own by the age of 4-5. However, if the hernia persists beyond this age or is large and causing symptoms, surgical repair is recommended. In the case of a small hernia in a 3-year-old child, observation is appropriate until the age of 5. If the hernia becomes incarcerated, it should be manually reduced and surgically repaired within 24 hours. The use of compression therapy after surgery is not recommended. Waiting for the hernia to self-resolve after the age of 5 is not advised as it is unlikely to happen and could lead to incarceration. These recommendations are based on BMJ Best Practice guidelines.

      Umbilical Hernia in Children: Causes and Treatment

      Umbilical hernias are a common occurrence in children and are often detected during the newborn examination. This condition is characterized by a bulge or protrusion near the belly button, caused by a weakness in the abdominal muscles. While umbilical hernias can occur in any child, they are more common in Afro-Caribbean infants and those with Down’s syndrome or mucopolysaccharide storage diseases.

      Fortunately, in most cases, umbilical hernias in children do not require treatment and will resolve on their own by the age of three. However, if the hernia persists beyond this age or becomes painful, surgery may be necessary to repair the abdominal wall. It is important to monitor the hernia and seek medical attention if there are any changes in size or symptoms.

      In summary, umbilical hernias are a common condition in children that typically resolve on their own without treatment. However, certain factors such as ethnicity and underlying medical conditions may increase the likelihood of developing an umbilical hernia. Parents should be aware of the signs and symptoms of umbilical hernias and seek medical attention if necessary.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 2 - A 6-year-old boy is brought to the GP surgery by his mother. He...

    Incorrect

    • A 6-year-old boy is brought to the GP surgery by his mother. He has a two-year history of asthma which has previously been controlled with a salbutamol inhaler twice daily and beclomethasone 50 micrograms bd. He has an audible wheeze that has been gradually worsening over the last few weeks and has not responded to additional doses of salbutamol. His mother also reports that he has a night-time cough for the past 6 weeks.

      What is the most appropriate next step in management?

      Your Answer: Increase the salbutamol inhaler to four times daily

      Correct Answer: Add a trial of a leukotriene receptor antagonist

      Explanation:

      If a child under the age of 5 has asthma that is not being controlled by a short-acting beta agonist (SABA) and a low dose of inhaled corticosteroids (ICS), then a leukotriene receptor antagonist should be added to their asthma management plan.

      Managing Asthma in Children: NICE Guidelines

      Asthma management in children has been updated by NICE in 2017, following the 2016 BTS guidelines. The new guidelines for children aged 5-16 are similar to those for adults, with a stepwise approach for treatment. For newly-diagnosed asthma, short-acting beta agonist (SABA) is recommended. If symptoms persist, a combination of SABA and paediatric low-dose inhaled corticosteroid (ICS) is used. Leukotriene receptor antagonist (LTRA) is added if symptoms still persist, followed by long-acting beta agonist (LABA) if necessary. Maintenance and reliever therapy (MART) is used as a combination of ICS and LABA for daily maintenance therapy and symptom relief. For children under 5 years old, clinical judgement plays a greater role in diagnosis. The stepwise approach is similar to that for older children, with an 8-week trial of paediatric moderate-dose ICS before adding LTRA. If symptoms persist, referral to a paediatric asthma specialist is recommended.

      It should be noted that NICE does not recommend changing treatment for well-controlled asthma patients simply to adhere to the latest guidelines. The definitions of low, moderate, and high-dose ICS have also changed, with different definitions for adults and children. For children, <= 200 micrograms budesonide or equivalent is considered a paediatric low dose, 200-400 micrograms is a moderate dose, and > 400 micrograms is a high dose. Overall, the new NICE guidelines provide a clear and concise approach to managing asthma in children.

    • This question is part of the following fields:

      • Paediatrics
      31.5
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  • Question 3 - A 16-year-old boy visits the GP with his father. His father is worried...

    Correct

    • A 16-year-old boy visits the GP with his father. His father is worried as he has noticed scars on his son's arms and after a lengthy conversation, his son has confessed to self-harming on multiple occasions. The GP has decided to refer the boy to CAMHS (Child and Adolescent Mental Health Services). What is the most appropriate approach to minimize the likelihood of future self-harm?

      Your Answer: Cognitive behavioural therapy

      Explanation:

      Treatment Options for Self-Harm: Psychological Interventions and Care Plans

      Self-harm is a serious issue that requires appropriate treatment. While drug treatment is not recommended, psychological interventions such as cognitive behavioural therapy (CBT), psychodynamic therapy, and problem-solving therapy can be effective. It is important to offer sessions of a psychological intervention that are specifically structured for people who self-harm, while also tailoring the treatment plan to each individual. Family therapy is not recommended for this particular issue. Developing a care plan with agreed-upon aims for longer-term treatment is also crucial. Overall, a combination of psychological interventions and care plans can help reduce self-harm.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 4 - A baby boy is born after 29 weeks gestation. On day three, a...

    Incorrect

    • A baby boy is born after 29 weeks gestation. On day three, a routine examination reveals a continuous mechanical murmur and bounding femoral pulses. Echocardiography confirms a haemodynamically significant, isolated patent ductus arteriosus (PDA). What should be the next step in managing this condition?

      Your Answer: Medical management - prostaglandin infusion

      Correct Answer: Medical management - cyclooxygenase inhibitor infusion

      Explanation:

      Management of Patent Ductus Arteriosus

      The ductus arteriosus is a fetal blood vessel that directs deoxygenated blood from the right ventricle directly into the descending aorta. After birth, the ductus should close within the first few days due to decreased prostaglandin levels and increased oxygen concentrations. Premature and low birth weight babies are at a higher risk of the ductus remaining open, which can lead to complications such as reduced blood supply to tissues, pressure overload of the pulmonary circulation, and volume overload of the systemic circulation.

      The decision to intervene and close a patent ductus arteriosus (PDA) is based on the individual case and the severity of the condition. Medical management is usually the first step and involves administering a cyclooxygenase inhibitor to block prostaglandin synthesis and promote closure of the ductus. Conservative management may be an option for PDAs of little consequence, but even small PDAs pose long-term risks and may require intervention. Cardiac catheterisation is not appropriate in isolated PDA cases, and surgical management is reserved for those who fail medical management. Prostaglandin infusions may be used to keep the ductus patent in certain cardiac malformations that require a shunt for survival.

      Overall, the management of PDA is crucial in preventing complications and ensuring proper blood flow. The decision to intervene should be made on a case-by-case basis, with medical management being the usual first step.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 5 - A 16-year-old girl visits her GP complaining of bilateral knee pain that has...

    Incorrect

    • A 16-year-old girl visits her GP complaining of bilateral knee pain that has been bothering her for the past 2 months, particularly in the mornings. She has also been feeling generally fatigued, but denies experiencing any fevers, weight loss, or rashes. Her mother has a history of systemic lupus erythematosus (SLE), but otherwise, her family history is unremarkable. Upon examination, the patient's vital signs are within normal limits. There is mild oedema in both knees and ankles, and passive movement of the knee joints elicits tenderness. What is the most likely diagnosis?

      Your Answer: Systemic-onset juvenile idiopathic arthritis

      Correct Answer: Oligoarticular juvenile idiopathic arthritis

      Explanation:

      The most common presentation of juvenile idiopathic arthritis (JIA) is oligoarticular (or pauciarticular) JIA, which typically affects up to four joints and is mild. The affected joints are usually larger ones like the knee, ankle, or elbow, and common symptoms include pain, stiffness, and fatigue. Other symptoms may include rash, fever, or dry/gritty eyes. Having a family history of autoimmune disease, such as systemic lupus erythematosus, increases the risk of developing JIA.

      Ewing sarcoma is a primary bone cancer that usually affects long bones and causes localized pain and swelling. It is unlikely to present symmetrically and typically affects only one side of the body.

      Osgood-Schlatter disease is an inflammation of the growth plate at the tibial tubercle, which is caused by traction from the quadriceps. It usually occurs in adolescents who are involved in sports/athletics and can affect both tibias, although it typically presents on only one side. The pain is worse during exercise and is not associated with knee effusions.

      Systemic lupus erythematosus (SLE) is a chronic disorder that affects multiple systems and often includes arthritis or arthralgia. However, in this case, the absence of other systemic symptoms or rash suggests that the primary issue is arthritis, despite the family history.

      Understanding Pauciarticular Juvenile Idiopathic Arthritis

      Pauciarticular Juvenile Idiopathic Arthritis (JIA) is a type of arthritis that affects children under the age of 16 and lasts for more than six weeks. It is characterized by joint pain and swelling, typically in medium-sized joints such as the knees, ankles, and elbows. This type of JIA is called pauciarticular because it affects four or fewer joints. It is the most common type of JIA, accounting for approximately 60% of cases.

      In addition to joint pain and swelling, children with pauciarticular JIA may experience a limp. It is also possible for the antinuclear antibody (ANA) test to be positive in cases of JIA, which is associated with anterior uveitis. It is important for parents and caregivers to be aware of the symptoms of pauciarticular JIA and seek medical attention if they suspect their child may be affected. Early diagnosis and treatment can help manage symptoms and prevent long-term joint damage.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 6 - A 6-year-old girl is brought to the paediatric clinic by her father with...

    Incorrect

    • A 6-year-old girl is brought to the paediatric clinic by her father with a sore throat that worsens with swallowing, headaches, and malaise. He reports no coughing.

      Upon examination, her temperature is 38.5ºC, her heart rate is 100 bpm, and her tonsils are symmetrically enlarged and red, with white patches present. There is tender anterior cervical lymphadenopathy. The doctor's overall impression is that of an ill child.

      The patient has no medical history but is allergic to penicillin. What is the most appropriate immediate step in her management?

      Your Answer: Prescribe phenoxymethylpenicillin

      Correct Answer: Immediate hospital admission

      Explanation:

      Immediate hospital admission is necessary for a child with fevers who appears unwell to a paediatric healthcare professional, as this is considered a red flag indicating severe illness. In this case, the child has a Centor score of 4 and presents with tonsillitis symptoms, including tonsillar exudate, tender cervical lymphadenopathy, fever, and no cough. While antibiotic treatment may be warranted, the priority is to admit the child for assessment and management of their condition. Delayed antibiotic prescription or prescribing a specific antibiotic, such as clarithromycin or phenoxymethylpenicillin, would not be appropriate in this situation.

      The NICE Feverish illness in children guidelines were introduced in 2007 and updated in 2013. These guidelines use a ‘traffic light’ system to assess the risk of children under 5 years old presenting with a fever. It is important to note that these guidelines only apply until a clinical diagnosis of the underlying condition has been made. When assessing a febrile child, their temperature, heart rate, respiratory rate, and capillary refill time should be recorded. Signs of dehydration should also be looked for. Measuring temperature should be done with an electronic thermometer in the axilla if the child is under 4 weeks old or with an electronic/chemical dot thermometer in the axilla or an infrared tympanic thermometer.

      The risk stratification table includes green for low risk, amber for intermediate risk, and red for high risk. The table includes categories such as color, activity, respiratory, circulation and hydration, and other symptoms. If a child is categorized as green, they can be managed at home with appropriate care advice. If they are categorized as amber, parents should be provided with a safety net or referred to a pediatric specialist for further assessment. If a child is categorized as red, they should be urgently referred to a pediatric specialist. It is important to note that oral antibiotics should not be prescribed to children with fever without an apparent source, and a chest x-ray does not need to be routinely performed if a pneumonia is suspected but the child is not going to be referred to the hospital.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 7 - What is the most suitable method to confirm a diagnosis of pertussis in...

    Incorrect

    • What is the most suitable method to confirm a diagnosis of pertussis in children?

      Your Answer: Throat swab

      Correct Answer: Per nasal swab

      Explanation:

      Whooping Cough: Causes, Symptoms, Diagnosis, and Management

      Whooping cough, also known as pertussis, is a contagious disease caused by the bacterium Bordetella pertussis. It is commonly found in children, with around 1,000 cases reported annually in the UK. The disease is characterized by a persistent cough that can last up to 100 days, hence the name cough of 100 days.

      Infants are particularly vulnerable to whooping cough, which is why routine immunization is recommended at 2, 3, 4 months, and 3-5 years. However, neither infection nor immunization provides lifelong protection, and adolescents and adults may still develop the disease.

      Whooping cough has three phases: the catarrhal phase, the paroxysmal phase, and the convalescent phase. The catarrhal phase lasts around 1-2 weeks and presents symptoms similar to a viral upper respiratory tract infection. The paroxysmal phase is characterized by a severe cough that worsens at night and after feeding, and may be accompanied by vomiting and central cyanosis. The convalescent phase is when the cough subsides over weeks to months.

      To diagnose whooping cough, a person must have an acute cough that has lasted for 14 days or more without another apparent cause, and have one or more of the following features: paroxysmal cough, inspiratory whoop, post-tussive vomiting, or undiagnosed apnoeic attacks in young infants. A nasal swab culture for Bordetella pertussis is used to confirm the diagnosis, although PCR and serology are increasingly used.

      Infants under 6 months with suspected pertussis should be admitted, and in the UK, pertussis is a notifiable disease. An oral macrolide, such as clarithromycin, azithromycin, or erythromycin, is indicated if the onset of the cough is within the previous 21 days to eradicate the organism and reduce the spread. Household contacts should be offered antibiotic prophylaxis, although antibiotic therapy has not been shown to alter the course of the illness. School exclusion is recommended for 48 hours after commencing antibiotics or 21 days from onset of symptoms if no antibiotics are given.

      Complications of whooping cough include subconjunctival haemorrhage, pneumonia, bronchiectasis, and

    • This question is part of the following fields:

      • Paediatrics
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  • Question 8 - A 3-month-old boy is brought to the emergency department by his mother. She...

    Incorrect

    • A 3-month-old boy is brought to the emergency department by his mother. She reports a 3 hour history of a non-blanching rash all over his body. She also mentions that he has been more fussy than usual and has been refusing to eat.
      Upon examination, the baby has a temperature of 38.9ºC and a non-blanching petechial rash with overall hypotonia. The anterior fontanelle is also bulging.
      Based on the likely diagnosis and appropriate investigation, what would be the most suitable initial management option?

      Your Answer: IV cefotaxime and IV dexamethasone

      Correct Answer: IV cefotaxime and IV amoxicillin

      Explanation:

      When dealing with suspected or confirmed bacterial meningitis in children under 3 months old, it is not recommended to use corticosteroids. Instead, the most appropriate treatment option would be a combination of IV cefotaxime and IV amoxicillin. IV cefotaxime is effective in covering for pneumococcal and haemophilus influenzae, but since children under 3 months are at risk of listeria monocytogenes as a cause of bacterial meningitis, amoxicillin is necessary to provide adequate coverage. It is important to note that IV dexamethasone is typically given to patients with bacterial meningitis to reduce the risk of neurological complications, but this is not recommended for children under 3 months old.

      Investigation and Management of Meningitis in Children

      Meningitis is a serious condition that can affect children. When investigating meningitis, it is important to note any contraindications to lumbar puncture, such as signs of raised intracranial pressure, focal neurological signs, papilloedema, significant bulging of the fontanelle, disseminated intravascular coagulation, or signs of cerebral herniation. For patients with meningococcal septicaemia, a lumbar puncture is contraindicated, and blood cultures and PCR for meningococcus should be obtained instead.

      The management of meningitis in children involves administering antibiotics, such as IV amoxicillin (or ampicillin) and IV cefotaxime for children under three months, and IV cefotaxime (or ceftriaxone) for children over three months. Steroids should be considered if the lumbar puncture reveals certain findings, such as purulent cerebrospinal fluid, a high white blood cell count, or bacteria on Gram stain. Fluids should be administered to treat shock, and cerebral monitoring should be conducted, including mechanical ventilation if necessary.

      It is also important to notify public health authorities and administer antibiotic prophylaxis to contacts. Ciprofloxacin is now preferred over rifampicin for this purpose. Overall, prompt and appropriate management of meningitis in children is crucial for ensuring the best possible outcomes.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 9 - A 22-month-old toddler has been hospitalized after experiencing a significant rectal hemorrhage that...

    Incorrect

    • A 22-month-old toddler has been hospitalized after experiencing a significant rectal hemorrhage that necessitated a blood transfusion. Despite the bleeding, the child seems calm and free of discomfort.
      What is the probable diagnosis?

      Your Answer: Necrotising enterocolitis

      Correct Answer: Meckel's diverticulum

      Explanation:

      Meckel’s diverticulum is a congenital disorder that can cause malformation in the small intestine. Although it is often asymptomatic, it can lead to acid release and ulceration of the small intestine. This condition is the most common cause of gastrointestinal bleeding requiring transfusion in children between the ages of 1 and 2 years, presenting with symptoms such as bright red rectal bleeding, constipation, nausea and vomiting, and abdominal pain.

      Other conditions that can cause bleeding in the gastrointestinal tract include oesophagitis, which is typically caused by acid reflux and presents with heartburn, and anal fissures, which are often painful or itchy and commonly occur in those who have been constipated. However, these conditions are not typically associated with transfusion.

      Necrotising enterocolitis is another condition that can cause gastrointestinal bleeding and severe illness, but it is more common in neonates, particularly those born prematurely. Meckel’s diverticulum remains the most common cause of painless massive GI bleeding requiring transfusion in young children.

      Meckel’s diverticulum is a small pouch in the small intestine that is present from birth. It is a leftover part of the omphalomesenteric duct, which is also known as the vitellointestinal duct. The diverticulum can contain tissue from the ileum, stomach, or pancreas. This condition is relatively rare, occurring in only 2% of the population. Meckel’s diverticulum is typically located about 2 feet from the ileocaecal valve and is around 2 inches long.

      In most cases, Meckel’s diverticulum does not cause any symptoms and is only discovered incidentally during medical tests. However, it can cause abdominal pain that is similar to appendicitis, rectal bleeding, and intestinal obstruction. In fact, it is the most common cause of painless massive gastrointestinal bleeding in children between the ages of 1 and 2 years.

      To diagnose Meckel’s diverticulum, doctors may perform a Meckel’s scan using a radioactive substance that has an affinity for gastric mucosa. In more severe cases, mesenteric arteriography may be necessary. Treatment typically involves surgical removal of the diverticulum if it has a narrow neck or is causing symptoms. The options for surgery include wedge excision or formal small bowel resection and anastomosis.

      Meckel’s diverticulum is caused by a failure of the attachment between the vitellointestinal duct and the yolk sac to disappear during fetal development. The diverticulum is typically lined with ileal mucosa, but it can also contain ectopic gastric, pancreatic, or jejunal mucosa. This can increase the risk of peptic ulceration and other complications. Meckel’s diverticulum is often associated with other conditions such as enterocystomas, umbilical sinuses, and omphalocele fistulas.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 10 - A 9-month-old baby has become unresponsive in the waiting area of the pediatrician's...

    Correct

    • A 9-month-old baby has become unresponsive in the waiting area of the pediatrician's office for an unknown cause. Basic life support for infants is started, and chest compressions are administered. What is the appropriate technique for performing chest compressions in this scenario?

      Your Answer: Two-thumb encircling technique

      Explanation:

      For infants aged younger than one, the recommended technique for chest compression during paediatric BLS is the two-thumb encircling technique. Using one hand to compress the lower half of the sternum or two hands to compress the upper half of the sternum are incorrect methods. Additionally, using two hands to compress the lower half of the sternum or the one-thumb encircling technique are not recognised techniques for providing chest compressions in any circumstance.

      Paediatric Basic Life Support Guidelines

      Paediatric basic life support guidelines were updated in 2015 by the Resuscitation Council. Lay rescuers should use a compression:ventilation ratio of 30:2 for children under 1 year and between 1 year and puberty, a child is defined. If there are two or more rescuers, a ratio of 15:2 should be used.

      The algorithm for paediatric basic life support starts with checking if the child is unresponsive and shouting for help. The airway should be opened, and breathing should be checked by looking, listening, and feeling for breaths. If the child is not breathing, five rescue breaths should be given, and signs of circulation should be checked.

      For infants, the brachial or femoral pulse should be used, while children should use the femoral pulse. Chest compressions should be performed at a ratio of 15:2, with a rate of 100-120 compressions per minute for both infants and children. The depth of compressions should be at least one-third of the anterior-posterior dimension of the chest, which is approximately 4 cm for an infant and 5 cm for a child.

      In children, the lower half of the sternum should be compressed, while in infants, a two-thumb encircling technique should be used for chest compressions. These guidelines are crucial for anyone who may need to perform basic life support on a child, and it is essential to follow them carefully to ensure the best possible outcome.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 11 - A 1-month-old infant begins to turn blue and becomes tachypnoeic 10 minutes after...

    Incorrect

    • A 1-month-old infant begins to turn blue and becomes tachypnoeic 10 minutes after feeding. They are administered 100% oxygen for 20 minutes and an arterial blood gas is performed.

      pH 7.40 7.36 - 7.42
      PaO2 11.5 kPa 10.0 - 12.5
      PaCO2 5.8 kPa 5.1 - 5.6

      On auscultation, the infant has no murmur but a loud single S2. On palpation, there is a prominent ventricular pulse.

      What is the most likely diagnosis?

      Your Answer: Pulmonary valve stenosis

      Correct Answer: Transposition of the great arteries

      Explanation:

      The oxygen level is below 15 kPa, indicating a cyanotic heart defect. The most likely defect to present soon after birth is transposition of the great arteries, which is consistent with the examination findings. Pulmonary valve stenosis may also cause cyanosis if the lesion is large enough and is associated with Noonan syndrome. It produces a mid-systolic crescendo-decrescendo murmur. Tetralogy of Fallot is the most common cyanotic heart defect but typically presents between 1 and 6 months of age. It is characterized by a loud ejection systolic murmur that is most prominent at the left upper sternal edge and radiates to the axillae.

      Understanding Transposition of the Great Arteries

      Transposition of the great arteries (TGA) is a type of congenital heart disease that results in a lack of oxygenated blood flow to the body. This condition occurs when the aorticopulmonary septum fails to spiral during septation, causing the aorta to leave the right ventricle and the pulmonary trunk to leave the left ventricle. Children born to diabetic mothers are at a higher risk of developing TGA.

      The clinical features of TGA include cyanosis, tachypnea, a loud single S2 heart sound, and a prominent right ventricular impulse. Chest x-rays may show an egg-on-side appearance.

      To manage TGA, it is important to maintain the ductus arteriosus with prostaglandins. Surgical correction is the definitive treatment for this condition. Understanding the basic anatomical changes and clinical features of TGA can help with early diagnosis and appropriate management.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 12 - A 5-year-old girl comes to the GP with a sudden onset of limp....

    Correct

    • A 5-year-old girl comes to the GP with a sudden onset of limp. She appears to be in good health. During the examination, she displays an antalgic gait. An MRI scan reveals decreased blood flow to the left hip, leading the doctor to suspect Perthes' disease. What is the most suitable course of action?

      Your Answer: Observation

      Explanation:

      Perthes’ disease has a favorable prognosis when it presents before the age of 6, and observation is the only necessary treatment. This question confirms the diagnosis of Perthes’ disease through MRI, which shows reduced blood flow to the hip joint and causes hip pain and limping. Surgical intervention is only necessary for children over the age of 6. Septic arthritis, which requires treatment with flucloxacillin, is not the diagnosis in this case as the patient is not showing systemic symptoms. The use of a Pavlik harness is reserved for developmental dysplasia of the hip.

      Understanding Perthes’ Disease

      Perthes’ disease is a degenerative condition that affects the hip joints of children, typically between the ages of 4-8 years. It is caused by a lack of blood supply to the femoral head, which leads to bone infarction and avascular necrosis. This condition is more common in boys, with around 10% of cases being bilateral. The symptoms of Perthes’ disease include hip pain, stiffness, reduced range of hip movement, and a limp. Early changes can be seen on an x-ray, such as widening of the joint space, while later changes include decreased femoral head size and flattening.

      To diagnose Perthes’ disease, a plain x-ray is usually sufficient. However, if symptoms persist and the x-ray is normal, a technetium bone scan or magnetic resonance imaging may be necessary. If left untreated, Perthes’ disease can lead to complications such as osteoarthritis and premature fusion of the growth plates.

      The severity of Perthes’ disease is classified using the Catterall staging system, which ranges from stage 1 (clinical and histological features only) to stage 4 (loss of acetabular integrity). Treatment options include keeping the femoral head within the acetabulum using a cast or braces, observation for children under 6 years old, and surgical management for older children with severe deformities. The prognosis for Perthes’ disease is generally good, with most cases resolving with conservative management. Early diagnosis is key to improving outcomes.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 13 - A worried father brings his 12-month-old son to the GP because he is...

    Incorrect

    • A worried father brings his 12-month-old son to the GP because he is worried about his development.

      You conduct a developmental evaluation.

      What results in the child would be worrisome?

      Your Answer: Casts bricks

      Correct Answer: Picks up objects with a pincer grip, with a preference for the right hand

      Explanation:

      Hand preference before the age of 12 months may indicate a potential issue such as cerebral palsy. It is not typical for a child to strongly favor one hand over the other at this age. However, it is encouraging for a 10-month-old to have a vocabulary of at least three words. It is normal for children to play alone at this age and they are not expected to share toys until they are around 3 years old. It is also normal for children to enjoy casting bricks until they are 18 months old, but if this behavior continues beyond that age, it may be a cause for concern. Finally, independent walking should develop between 9 and 18 months, with 18 months being the age at which parents may want to seek medical advice if their child is not yet walking independently.

      Common Developmental Problems and Possible Causes

      Developmental problems can manifest in various ways, including referral points such as not smiling at 10 weeks, inability to sit unsupported at 12 months, and failure to walk at 18 months. Fine motor skill problems may also arise, such as abnormal hand preference before 12 months, which could indicate cerebral palsy. Gross motor problems are often caused by a variant of normal, cerebral palsy, or neuromuscular disorders like Duchenne muscular dystrophy. Speech and language problems should always be checked for hearing issues, as they can also be caused by environmental deprivation or general development delay.

      It is important to recognize these developmental problems early on and seek appropriate interventions to address them. By doing so, children can receive the necessary support to reach their full potential and overcome any challenges they may face. With proper care and attention, many children with developmental problems can go on to lead happy and fulfilling lives.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 14 - A 5-year-old patient is referred to the Paediatric Unit after having presented to...

    Incorrect

    • A 5-year-old patient is referred to the Paediatric Unit after having presented to her General Practitioner (GP) twice over the course of the week with fever and a red tongue and throat. A course of penicillin V has so far been ineffective. She is fully immunised and has not been in contact with any other children with notifiable infectious diseases. Her parents report that she has not been well for around 7 days with a high fever, which they have been unable to bring down with paracetamol and ibuprofen. She has had a cough with coryzal symptoms and has now developed conjunctivitis.
      On examination, she looks unwell. Temperature is 38 °C, heart rate 124 bpm and respiratory rate 28. Capillary refill time is 2 s centrally. She has bilateral conjunctivitis. She has a red oropharynx and a red tongue. There is cervical lymphadenopathy and a widespread maculopapular rash. Her hands and feet are red and there is some peeling of the skin around the toes.
      Which of the following diagnoses should be made?

      Your Answer: Measles

      Correct Answer: Kawasaki disease

      Explanation:

      The child in question is suffering from Kawasaki disease, a febrile vasculitis that affects small to medium-sized arteries and primarily affects children under the age of 5, with males being more commonly affected. Symptoms include sudden-onset fever lasting at least 5 days, nonexudative conjunctivitis, polymorphous rash, lymphadenopathy, mucositis, and cardiovascular manifestations such as coronary artery aneurysms. Diagnosis is based on the presence of fever lasting for >5 days and at least four or five of the following: bilateral conjunctivitis, changes in the lips and oral mucosal cavities, lymphadenopathy, polymorphous rash, and changes in the extremities. Treatment involves inpatient care, intravenous immunoglobulins (IVIG), aspirin, and monitoring of cardiovascular function. If left untreated, Kawasaki disease can lead to arterial aneurysms and congestive heart disease. Other potential causes of the child’s symptoms, such as Coxsackie infection, measles, viral upper respiratory tract infection with exanthema, and scarlet fever, have been ruled out based on the child’s symptoms and medical history.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 15 - A 10-week-old baby is brought to the Emergency department by her mother. She...

    Incorrect

    • A 10-week-old baby is brought to the Emergency department by her mother. She has been extremely fussy for the past day, crying loudly and not feeding well. During the examination, her temperature is found to be 38.2C and her left tympanic membrane is red and inflamed. The diagnosis is acute otitis media without effusion. What is the most suitable course of action in the emergency department?

      Your Answer: Treat pain and fever with paracetamol and observe for the next 4 hours

      Correct Answer: Admit for immediate paediatric assessment

      Explanation:

      The management of an acutely unwell child requires the ability to identify whether the situation is low, medium, or high risk. The child in this scenario has one medium risk factor (poor feeding) and two high risk factors (high pitched cry and temperature greater than 38C in an infant under 3 months old). As per the guidelines, any child with a high risk factor should be urgently referred to the paediatric team for assessment. However, in some cases, a child may have a high risk factor but the diagnosis suggests a less serious outcome. In such situations, clinical judgement can determine the next step in management while still following the guidelines. Despite the child in this scenario having acute otitis media without an effusion, she is very young with multiple risk factors, and therefore, a paediatric referral would be the best course of action.

      The NICE Feverish illness in children guidelines were introduced in 2007 and updated in 2013. These guidelines use a ‘traffic light’ system to assess the risk of children under 5 years old presenting with a fever. It is important to note that these guidelines only apply until a clinical diagnosis of the underlying condition has been made. When assessing a febrile child, their temperature, heart rate, respiratory rate, and capillary refill time should be recorded. Signs of dehydration should also be looked for. Measuring temperature should be done with an electronic thermometer in the axilla if the child is under 4 weeks old or with an electronic/chemical dot thermometer in the axilla or an infrared tympanic thermometer.

      The risk stratification table includes green for low risk, amber for intermediate risk, and red for high risk. The table includes categories such as color, activity, respiratory, circulation and hydration, and other symptoms. If a child is categorized as green, they can be managed at home with appropriate care advice. If they are categorized as amber, parents should be provided with a safety net or referred to a pediatric specialist for further assessment. If a child is categorized as red, they should be urgently referred to a pediatric specialist. It is important to note that oral antibiotics should not be prescribed to children with fever without an apparent source, and a chest x-ray does not need to be routinely performed if a pneumonia is suspected but the child is not going to be referred to the hospital.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 16 - In a 6-year-old boy, what could be a possible association with an uncomplicated...

    Incorrect

    • In a 6-year-old boy, what could be a possible association with an uncomplicated ventricular septal defect (VSD)?

      Your Answer: Splenomegaly

      Correct Answer: A pansystolic murmur of grade 4/6 in intensity

      Explanation:

      Characteristics of Congenital Heart Disease

      A collapsing pulse can be a sign of aortic incompetence, while clubbing is a common feature of cyanotic congenital heart disease. A holosystolic murmur of varying intensity is also a characteristic of this condition. However, splenomegaly is not typically associated with congenital heart disease. In an uncomplicated ventricular septal defect, the S2 splits normally and P2 is normal. These are important characteristics to be aware of when diagnosing and treating congenital heart disease. Proper identification and management of these symptoms can greatly improve patient outcomes.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 17 - A 14-month-old child presents to the emergency department with symptoms of feeling generally...

    Correct

    • A 14-month-old child presents to the emergency department with symptoms of feeling generally unwell, being off food, and bleeding from the back passage. The child's mother reports no nausea or vomiting. On examination, the patient appears distressed and is tender in the right lower quadrant. No masses are felt in the abdomen. Vital signs show a heart rate of 170 beats per minute, respiratory rate of 32 breaths per minute, blood pressure of 68/37 mmHg, and temperature of 36.2 ºC. The patient has no known medical conditions or regular medications. What is the most likely diagnosis?

      Your Answer: Meckel's diverticulum

      Explanation:

      The patient does not exhibit any of the typical symptoms associated with appendicitis, such as fever, nausea, vomiting, or loss of appetite. While paroxysmal abdominal colic pain is a common feature of many conditions, an underlying pathological cause has not been identified in this case. The child does not display the sudden onset of inconsolable crying episodes or pallor that is often seen in cases of colic. Peutz-Jeghers syndrome, a rare genetic disorder that causes hamartomatous polyposis, is unlikely given the patient’s age. Cecal volvulus, which is characterized by sudden onset colicky lower abdominal pain, abdominal distension, and a failure to pass flatus or stool, is also an unlikely diagnosis in this case.

      Meckel’s diverticulum is a small pouch in the small intestine that is present from birth. It is a leftover part of the omphalomesenteric duct, which is also known as the vitellointestinal duct. The diverticulum can contain tissue from the ileum, stomach, or pancreas. This condition is relatively rare, occurring in only 2% of the population. Meckel’s diverticulum is typically located about 2 feet from the ileocaecal valve and is around 2 inches long.

      In most cases, Meckel’s diverticulum does not cause any symptoms and is only discovered incidentally during medical tests. However, it can cause abdominal pain that is similar to appendicitis, rectal bleeding, and intestinal obstruction. In fact, it is the most common cause of painless massive gastrointestinal bleeding in children between the ages of 1 and 2 years.

      To diagnose Meckel’s diverticulum, doctors may perform a Meckel’s scan using a radioactive substance that has an affinity for gastric mucosa. In more severe cases, mesenteric arteriography may be necessary. Treatment typically involves surgical removal of the diverticulum if it has a narrow neck or is causing symptoms. The options for surgery include wedge excision or formal small bowel resection and anastomosis.

      Meckel’s diverticulum is caused by a failure of the attachment between the vitellointestinal duct and the yolk sac to disappear during fetal development. The diverticulum is typically lined with ileal mucosa, but it can also contain ectopic gastric, pancreatic, or jejunal mucosa. This can increase the risk of peptic ulceration and other complications. Meckel’s diverticulum is often associated with other conditions such as enterocystomas, umbilical sinuses, and omphalocele fistulas.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 18 - You are requested to assess a 38-week-gestation boy in the postnatal ward who...

    Correct

    • You are requested to assess a 38-week-gestation boy in the postnatal ward who is now 36-hours-old. The baby was delivered via forceps and has noticeable facial bruising. He is being formula-fed and is progressing well in the postnatal period except for an elevated transcutaneous bilirubin measurement. What could be the probable reason for the raised bilirubin level in this newborn?

      Your Answer: Bruising

      Explanation:

      Elevated bilirubin levels can result from bruising during birth, which causes hemolysis. Bruising in the neonatal stage can also lead to increased bilirubin levels due to the breakdown of haemoglobin. Preterm babies and those who are breastfed are more likely to develop jaundice. The baby’s medical history and examination do not indicate any signs of infection. Jaundice is not associated with being male.

      Jaundice in newborns can occur within the first 24 hours of life and is always considered pathological. The causes of jaundice during this period include rhesus and ABO haemolytic diseases, hereditary spherocytosis, and glucose-6-phosphodehydrogenase deficiency. On the other hand, jaundice in neonates from 2-14 days is common and usually physiological, affecting up to 40% of babies. This type of jaundice is due to a combination of factors such as more red blood cells, fragile red blood cells, and less developed liver function. Breastfed babies are more likely to develop this type of jaundice.

      If jaundice persists after 14 days (21 days for premature babies), a prolonged jaundice screen is performed. This includes tests for conjugated and unconjugated bilirubin, direct antiglobulin test, thyroid function tests, full blood count and blood film, urine for MC&S and reducing sugars, and urea and electrolytes. Prolonged jaundice can be caused by biliary atresia, hypothyroidism, galactosaemia, urinary tract infection, breast milk jaundice, prematurity, and congenital infections such as CMV and toxoplasmosis. Breast milk jaundice is more common in breastfed babies and is thought to be due to high concentrations of beta-glucuronidase, which increases the intestinal absorption of unconjugated bilirubin. Prematurity also increases the risk of kernicterus.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 19 - A 6-year-old girl walks with a limp due to right hip pain, which...

    Correct

    • A 6-year-old girl walks with a limp due to right hip pain, which is relieved by rest and made worse by walking or standing. Her vital signs are normal. The Trendelenburg sign presents when she stands on her right leg.
      X-rays reveal periarticular right hip swelling in soft tissue. A bone scan reveals reduced activity in the anterolateral right capital femoral epiphysis.
      What is the most likely diagnosis?

      Your Answer: Legg-Calvé-Perthes disease

      Explanation:

      Understanding Legg-Calvé-Perthes Disease and Differential Diagnoses

      Legg–Calvé–Perthes disease is a condition that occurs due to vascular compromise of the capital epiphysis of the femur. The exact cause of this self-limiting disease is unclear, but it may be related to developmental changes in the hip’s blood supply. The compromised blood flow leads to ischaemic necrosis of the epiphysis. The retinacular arteries and their branches are the primary source of blood to the head of the femur, especially between the ages of 4 and 9 when the epiphyseal plate is forming. During this time, the incidence of Legg-Calvé-Perthes disease is highest.

      Differential diagnoses for this condition include a slipped capital femoral epiphysis, septic arthritis, and epiphyseal dysplasia. A slipped capital femoral epiphysis would be visible on hip radiography, which is not the case in this scenario. Septic arthritis would cause systemic inflammatory responses, which are not present in this case. Epiphyseal dysplasia is a congenital defect that would typically present when the child starts to walk.

      In addition to Legg-Calvé-Perthes disease, there is radiological evidence of synovitis and hip joint effusion in this scenario. However, synovitis is a non-specific sign and not a specific diagnosis. Understanding these differential diagnoses can help healthcare professionals provide accurate diagnoses and appropriate treatment plans for patients with hip joint issues.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 20 - A 3-year-old girl is brought to the emergency department with a 1 week...

    Incorrect

    • A 3-year-old girl is brought to the emergency department with a 1 week history of fever, lethargy, and irritability. The symptoms appeared suddenly and have not improved despite the GP's recommendation of antipyretics. The child has also experienced a loss of appetite and diarrhea during this time. This morning, a red rash appeared all over her body.

      Upon examination, the child appears toxic, has a temperature of 39.2ºC, and is tachycardic. The doctor observes a widespread maculopapular rash, left-sided cervical lymph node enlargement, and a swollen, erythematosus tongue.

      What is the most important investigation for this child, given the likely diagnosis?

      Your Answer: Lumbar puncture

      Correct Answer: Echocardiogram

      Explanation:

      To detect the development of coronary artery aneurysms, it is crucial to conduct an echocardiogram when dealing with Kawasaki disease. This is because such an examination can identify any coronary artery dilation or aneurysm formation, which is the primary cause of death associated with this condition. While an ECG is also necessary to evaluate any conduction abnormalities that may arise due to carditis, it is not as fatal as coronary artery complications. On the other hand, a chest x-ray or lumbar puncture is unnecessary since Kawasaki disease typically does not affect the lungs or central nervous system. Similarly, an abdominal ultrasound scan is not required unless liver function tests suggest gallbladder distension.

      Understanding Kawasaki Disease

      Kawasaki disease is a rare type of vasculitis that primarily affects children. It is important to identify this disease early on as it can lead to serious complications, such as coronary artery aneurysms. The disease is characterized by a high-grade fever that lasts for more than five days and is resistant to antipyretics. Other symptoms include conjunctival injection, bright red, cracked lips, strawberry tongue, cervical lymphadenopathy, and red palms and soles that later peel.

      Diagnosis of Kawasaki disease is based on clinical presentation as there is no specific diagnostic test available. Management of the disease involves high-dose aspirin, which is one of the few indications for aspirin use in children. Intravenous immunoglobulin is also used as a treatment option. Echocardiogram is the initial screening test for coronary artery aneurysms, rather than angiography.

      Complications of Kawasaki disease can be serious, with coronary artery aneurysm being the most common. It is important to recognize the symptoms of Kawasaki disease early on and seek medical attention promptly to prevent potential complications.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 21 - Sarah, a 12-year-old girl with Down's syndrome, visits her GP complaining of fatigue....

    Correct

    • Sarah, a 12-year-old girl with Down's syndrome, visits her GP complaining of fatigue. What medical condition is commonly linked to Down's syndrome?

      Your Answer: Hypothyroidism

      Explanation:

      Hypothyroidism is commonly found in individuals with Down syndrome, while the risk of hyperthyroidism is also increased. Type-1 diabetes is more prevalent in those with Down syndrome, but there is no association with ADHD. Fragile X is linked to ADHD, and male breast cancer is not associated with Down syndrome but has been linked to Klinefelter’s syndrome.

      Down’s syndrome is a genetic disorder that is characterized by various clinical features. These features include an upslanting of the palpebral fissures, epicanthic folds, Brushfield spots in the iris, a protruding tongue, small low-set ears, and a round or flat face. Additionally, individuals with Down’s syndrome may have a flat occiput, a single palmar crease, and a pronounced sandal gap between their big and first toe. Hypotonia, congenital heart defects, duodenal atresia, and Hirschsprung’s disease are also common in individuals with Down’s syndrome.

      Cardiac complications are also prevalent in individuals with Down’s syndrome, with multiple cardiac problems potentially present. The most common cardiac defect is the endocardial cushion defect, also known as atrioventricular septal canal defects, which affects 40% of individuals with Down’s syndrome. Other cardiac defects include ventricular septal defect, secundum atrial septal defect, tetralogy of Fallot, and isolated patent ductus arteriosus.

      Later complications of Down’s syndrome include subfertility, learning difficulties, short stature, repeated respiratory infections, hearing impairment from glue ear, acute lymphoblastic leukaemia, hypothyroidism, Alzheimer’s disease, and atlantoaxial instability. Males with Down’s syndrome are almost always infertile due to impaired spermatogenesis, while females are usually subfertile and have an increased incidence of problems with pregnancy and labour.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 22 - A 4-year-old child is brought to your office by their mother, complaining of...

    Correct

    • A 4-year-old child is brought to your office by their mother, complaining of diarrhoea that has been ongoing for a few months. The mother reports that the diarrhoea does not have a foul smell but sometimes contains undigested food. The child does not experience any abdominal pain or bloating. Upon measuring their height and weight, it is found to be appropriate for their age. What is the most probable diagnosis?

      Your Answer: Toddler's diarrhoea

      Explanation:

      Toddler’s diarrhoea is a harmless condition that does not cause any issues for the child. It occurs due to the rapid movement of food through their digestive system and may contain undigested food particles. No treatment is necessary. However, it is advisable to monitor the child’s growth by tracking their height and weight to rule out any serious underlying conditions such as coeliac disease, which may cause the child to drop centiles on the growth chart. Gastroenteritis is unlikely to persist for several months, and it is probable that other members of the household would also be affected.

      Understanding Diarrhoea in Children

      Diarrhoea is a common condition in children that can be caused by various factors. One of the most common causes is gastroenteritis, which is often accompanied by fever and vomiting for the first two days. The main risk associated with this condition is severe dehydration, which can be life-threatening if left untreated. The most common cause of gastroenteritis is rotavirus, and the diarrhoea may last up to a week. The treatment for this condition is rehydration.

      Chronic diarrhoea is another type of diarrhoea that can affect infants and toddlers. In the developed world, the most common cause of chronic diarrhoea in infants is cow’s’ milk intolerance. Toddler diarrhoea, on the other hand, is characterized by stools that vary in consistency and often contain undigested food. Other causes of chronic diarrhoea in children include coeliac disease and post-gastroenteritis lactose intolerance.

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      • Paediatrics
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  • Question 23 - Which feature is not associated with Down's syndrome? ...

    Incorrect

    • Which feature is not associated with Down's syndrome?

      Your Answer: A third fontanelle

      Correct Answer: Ataxic gait

      Explanation:

      Down’s Syndrome and Cognitive Decline

      Cerebellar dysfunction is not a characteristic of Down’s syndrome. However, individuals with this condition may experience a decline in memory and cognitive abilities similar to Alzheimer’s disease as they approach their mid-thirties. This syndrome is characterized by a gradual loss of cognitive function, including memory, attention, and problem-solving skills. It is important to note that this decline is not universal and may vary in severity among individuals with Down’s syndrome. Despite this, it is crucial to monitor cognitive function in individuals with Down’s syndrome to ensure early detection and intervention if necessary.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 24 - A 15-year-old boy presents to the Emergency Department at night with a sudden...

    Correct

    • A 15-year-old boy presents to the Emergency Department at night with a sudden onset of severe pain in his left testicle that started four hours ago. Upon examination, his left testis is visibly swollen and extremely tender to touch. What is the probable diagnosis?

      Your Answer: Testicular torsion

      Explanation:

      Testicular Torsion Diagnosis

      Testicular torsion is the most probable diagnosis based on the patient’s history and examination. To confirm this, it is essential to perform a surgical procedure under general anesthesia. The symptoms and signs presented by the patient are highly indicative of testicular torsion, and it is crucial to address this condition promptly. Therefore, it is necessary to conduct a thorough examination and perform the necessary tests to confirm the diagnosis. Once confirmed, appropriate treatment can be initiated to prevent further complications. It is essential to act quickly in such cases to avoid any long-term damage to the testicles.

    • This question is part of the following fields:

      • Paediatrics
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  • Question 25 - What is the preferred investigation to detect renal scarring in a pediatric patient...

    Correct

    • What is the preferred investigation to detect renal scarring in a pediatric patient with vesicoureteral reflux?

      Your Answer: Radionuclide scan using dimercaptosuccinic acid (DMSA)

      Explanation:

      Understanding Vesicoureteric Reflux

      Vesicoureteric reflux (VUR) is a condition where urine flows back from the bladder into the ureter and kidney. This is a common urinary tract abnormality in children and can lead to urinary tract infections (UTIs). In fact, around 30% of children who present with a UTI have VUR. It is important to investigate for VUR in children following a UTI as around 35% of children develop renal scarring.

      The pathophysiology of VUR involves the ureters being displaced laterally, which causes a shortened intramural course of the ureter. This means that the vesicoureteric junction cannot function properly. VUR can present in different ways, such as hydronephrosis on ultrasound during the antenatal period, recurrent childhood UTIs, and reflux nephropathy, which is chronic pyelonephritis secondary to VUR. Renal scarring can also produce increased quantities of renin, which can cause hypertension.

      To diagnose VUR, a micturating cystourethrogram is usually performed. A DMSA scan may also be done to check for renal scarring. VUR is graded based on the severity of the condition, with Grade I being the mildest and Grade V being the most severe.

      Overall, understanding VUR is important in preventing complications such as UTIs and renal scarring. Early diagnosis and management can help improve outcomes for children with this condition.

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      • Paediatrics
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  • Question 26 - A 7-year-old girl is diagnosed with Attention Deficit Hyperactivity Disorder and prescribed methylphenidate....

    Correct

    • A 7-year-old girl is diagnosed with Attention Deficit Hyperactivity Disorder and prescribed methylphenidate. What should be monitored during her treatment?

      Your Answer: Growth

      Explanation:

      In March 2018, NICE released new guidelines for identifying and managing Attention Deficit Hyperactivity Disorder (ADHD). This condition can have a significant impact on a child’s life and can continue into adulthood, making accurate diagnosis and treatment crucial. According to DSM-V, ADHD is characterized by persistent features of inattention and/or hyperactivity/impulsivity, with an element of developmental delay. Children up to the age of 16 must exhibit six of these features, while those aged 17 or over must exhibit five. ADHD has a UK prevalence of 2.4%, with a higher incidence in boys than girls, and there may be a genetic component.

      NICE recommends a holistic approach to treating ADHD that is not solely reliant on medication. After presentation, a ten-week observation period should be implemented to determine if symptoms change or resolve. If symptoms persist, referral to secondary care is necessary, typically to a paediatrician with a special interest in behavioural disorders or to the local Child and Adolescent Mental Health Service (CAMHS). A tailored plan of action should be developed, taking into account the patient’s needs and wants, as well as how their condition affects their lives.

      Drug therapy should be considered a last resort and is only available to those aged 5 years or older. Parents of children with mild/moderate symptoms can benefit from attending education and training programmes. For those who do not respond or have severe symptoms, pharmacotherapy may be considered. Methylphenidate is the first-line treatment for children and should be given on a six-week trial basis. It is a CNS stimulant that primarily acts as a dopamine/norepinephrine reuptake inhibitor. Side effects include abdominal pain, nausea, and dyspepsia. Weight and height should be monitored every six months in children. If there is an inadequate response, lisdexamfetamine should be considered, followed by dexamfetamine if necessary. In adults, methylphenidate or lisdexamfetamine are the first-line options, with switching between drugs if no benefit is seen after a trial of the other. All of these drugs are potentially cardiotoxic, so a baseline ECG should be performed before starting treatment, and referral to a cardiologist should be made if there is any significant past medical history or family history, or any doubt or ambiguity.

      As with most psychiatric conditions, a thorough history and clinical examination are essential, particularly given the overlap of ADHD with many other psychiatric and

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      • Paediatrics
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  • Question 27 - A 10-week-old girl has been brought to the emergency department by her father....

    Correct

    • A 10-week-old girl has been brought to the emergency department by her father. He noticed this morning that she was very drowsy and not feeding very much. When he measured her temperature it was 38.5ºC. She was born at 37 weeks gestation with an uncomplicated delivery. There is no past medical history or family history and she does not require any regular medications.

      On examination she is lethargic but responds to voice by opening her eyes. She is mildly hypotonic and febrile. There is a non-blanching rash on her torso that her father says was not there this morning.

      What is the most appropriate management?

      Your Answer: IV amoxicillin + IV cefotaxime

      Explanation:

      Investigation and Management of Meningitis in Children

      Meningitis is a serious condition that can affect children. When investigating meningitis, it is important to note any contraindications to lumbar puncture, such as signs of raised intracranial pressure, focal neurological signs, papilloedema, significant bulging of the fontanelle, disseminated intravascular coagulation, or signs of cerebral herniation. For patients with meningococcal septicaemia, a lumbar puncture is contraindicated, and blood cultures and PCR for meningococcal should be obtained instead.

      The management of meningitis in children involves administering antibiotics, such as IV amoxicillin (or ampicillin) and IV cefotaxime for children under three months, and IV cefotaxime (or ceftriaxone) for children over three months. Steroids should be considered if the lumbar puncture reveals certain findings, such as purulent cerebrospinal fluid, a high white blood cell count, or bacteria on Gram stain. Fluids should be administered to treat shock, and cerebral monitoring should be conducted, including mechanical ventilation if necessary.

      It is also important to notify public health authorities and administer antibiotic prophylaxis to contacts. Ciprofloxacin is now preferred over rifampicin for this purpose. Overall, prompt and appropriate management of meningitis in children is crucial for ensuring the best possible outcomes.

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      • Paediatrics
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  • Question 28 - A 15-year-old boy is presented to the General Practitioner by his mother who...

    Correct

    • A 15-year-old boy is presented to the General Practitioner by his mother who reports that he has been having difficulties at school for the past year. The patient has a medical history of recurrent otitis media. The mother mentions that her nephew and niece have both required extra assistance at school, and the latter has been diagnosed with Attention Deficit Hyperactivity Disorder (ADHD). The patient had a normal birth history and early childhood development. On examination, he has an elongated face and protruding ears. What is the most probable diagnosis?

      Your Answer: Fragile X syndrome

      Explanation:

      Fragile X Syndrome: A Genetic Disorder

      Fragile X syndrome is a genetic disorder caused by a trinucleotide repeat. It affects both males and females, but males are more severely affected. Common features in males include learning difficulties, large low set ears, long thin face, high arched palate, macroorchidism, hypotonia, and a higher likelihood of autism. Mitral valve prolapse is also a common feature. Females, who have one fragile chromosome and one normal X chromosome, may have a range of symptoms from normal to mild.

      Diagnosis of Fragile X syndrome can be made antenatally by chorionic villus sampling or amniocentesis. The number of CGG repeats can be analyzed using restriction endonuclease digestion and Southern blot analysis. Early diagnosis and intervention can help manage the symptoms of Fragile X syndrome and improve the quality of life for those affected.

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      • Paediatrics
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  • Question 29 - A 3-year-old girl is brought to the Emergency Department by her father following...

    Correct

    • A 3-year-old girl is brought to the Emergency Department by her father following a 2-day history of a non-productive cough. Her father denies any recent viral illness.
      On examination, the patient has no accessory muscle usage and is afebrile. On auscultation, she is noted to have a left-sided wheeze without crepitations. The patient has been developing normally and has never had any respiratory problems before. She has no significant past medical or family history. Her immunisation records are up to date.
      What is the most likely cause of her symptoms?

      Your Answer: Inhaled foreign body

      Explanation:

      Differential Diagnosis for a Child with Respiratory Symptoms

      When a child presents with respiratory symptoms, it is important to consider various differential diagnoses. In the case of a short duration of non-productive cough, an audible wheeze, and unilateral wheeze on auscultation, an inhaled foreign body should be considered as a possible cause. Other potential diagnoses include croup, bronchiolitis, pneumonia, and asthma.

      Croup, caused by a virus such as the parainfluenza virus, is characterized by a barking-seal-like cough and may be accompanied by stridor. Bronchiolitis, on the other hand, typically follows a coryzal period of cough and/or cold and causes respiratory distress as evidenced by accessory muscle usage, nasal flare, and tachypnea. It is also characterized by widespread inspiratory crepitations.

      Pneumonia should also be included in the differential diagnosis, but the lack of respiratory distress and fever, as well as the absence of a productive cough, make it less likely. Asthma, which is rarely diagnosed in children of this age, would present with sudden onset respiratory distress and widespread wheezing.

      In summary, a thorough evaluation of the patient’s symptoms and clinical findings is necessary to arrive at an accurate diagnosis and appropriate treatment plan.

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      • Paediatrics
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  • Question 30 - A baby born at 32 weeks’ gestation develops sudden abdominal distension and a...

    Correct

    • A baby born at 32 weeks’ gestation develops sudden abdominal distension and a purpuric rash. The nurses record the passage of blood and mucous per rectum during the first week of life in the Neonatal Intensive Care Unit.
      Which is the most likely diagnosis?

      Your Answer: Necrotising enterocolitis

      Explanation:

      Common Neonatal Gastrointestinal Disorders

      Necrotising Enterocolitis: A medical emergency affecting formula-fed preterm infants, characterised by acute inflammation in different parts of the bowel, causing mucosal injury and necrosis, and may lead to perforation. Symptoms include diarrhoea, haematochezia, vomiting, abdominal wall erythema/rash, abdominal distension and pain. Treatment involves bowel rest and intravenous antibiotics, with severe cases requiring a laparotomy to remove necrotic bowel.

      Haemorrhagic Disease of the Newborn: Associated with vitamin K deficiency, it can cause intracranial haemorrhage and bleeding in internal organs. Managed by vitamin K supplementation, replacement of blood and factor losses, and specialist care.

      Gastroschisis: A congenital abnormality resulting in the herniation of portions of the bowel, liver and stomach outside the abdomen, through a para-umbilical defect in the anterior abdominal wall.

      Haemolytic Uraemic Syndrome: Characterised by acute renal failure, haemolytic anaemia and thrombocytopenia, it occurs mainly in young children and is commonly associated with infection. Symptoms include profuse diarrhoea, fever, lethargy, acute renal failure, anuria and seizures.

      Hirschsprung’s Disease: Caused by the absence of ganglia in the distal colon, it produces a functional bowel obstruction and presents with delayed passage of meconium or chronic constipation from birth.

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      • Paediatrics
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