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Question 1
Incorrect
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A 6-year-old boy fell off his bike and now has an angled left elbow. His left hand feels cold and there are no detectable brachial, radial, or ulnar pulses. An X-ray of the elbow reveals a displaced humeral supracondylar fracture on the left side (Milch Type 1/Gartland II). What is the most suitable initial course of action?
Your Answer: Surgical exploration of the left brachial artery
Correct Answer: Closed reduction and percutaneous pinning of the fracture
Explanation:Complications and Management of Supracondylar Fractures
Supracondylar fractures can lead to various complications, including vascular and nerve injuries, compartment syndrome, and malunion. Arterial injury is a common complication, occurring in 5% of fractures, and can result from the brachial artery becoming kinked or lacerated. It is important to carefully check and record the distal circulation in the patient’s notes.
Initial management of supracondylar fractures involves providing analgesia and performing an emergency reduction of the fracture to restore the brachial artery’s unkinking and distal blood flow. Displaced fractures are typically treated with percutaneous pinning. However, if blood flow is not restored, a vascular surgeon should perform a surgical exploration of the brachial artery.
Lacerations of the artery can be repaired either primarily with sutures or with a vein graft. It is crucial to address complications promptly to prevent further damage and ensure proper healing. By the potential complications and appropriate management strategies, healthcare professionals can provide optimal care for patients with supracondylar fractures.
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This question is part of the following fields:
- Paediatrics
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Question 2
Correct
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A 10-year-old girl presents to the Emergency department with complaints of hip and knee pain following a minor fall from her bike. Upon examination, her knee appears normal but there is limited range of motion at the hip joint. What is the probable diagnosis?
Your Answer: Slipped upper femoral epiphysis
Explanation:Slipped Upper Femoral Epiphysis: Symptoms and Risk Factors
Slipped upper femoral epiphysis is a condition that commonly affects obese adolescent boys with a positive family history. It is characterized by the displacement of the femoral head from the femoral neck, which can lead to a range of symptoms.
The most common symptoms of slipped upper femoral epiphysis include an externally rotated hip and antalgic gait, decreased internal rotation, thigh atrophy (depending on the chronicity of symptoms), and hip, thigh, and knee pain.
It is important to note that 25% of cases are bilateral, meaning that both hips may be affected. This condition can be particularly debilitating for young people, as it can limit their mobility and cause significant discomfort.
Overall, it is important for healthcare professionals to be aware of the risk factors and symptoms of slipped upper femoral epiphysis, as early diagnosis and treatment can help to prevent further complications and improve outcomes for patients.
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This question is part of the following fields:
- Paediatrics
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Question 3
Correct
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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.
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This question is part of the following fields:
- Paediatrics
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Question 4
Incorrect
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Johnny, a 5-year-old boy, has been brought to the doctor due to delayed speech development. What factors could increase his likelihood of developing autistic spectrum disorder?
Your Answer: Alcohol Consumption during pregnancy
Correct Answer: A trinucleotide repeat disorder of the X chromosome
Explanation:Autistic spectrum disorder and learning difficulties have been linked to fragile X syndrome, especially in males, which is a trinucleotide repeat disorder. However, recent guidance has shown that there is no connection between the MMR vaccine and autistic spectrum disorder, contrary to what the media may suggest. Additionally, a higher risk of autistic spectrum disorder has been associated with low birth weight, not high birth weight, and there is no evidence to support a link between childhood obesity and autistic spectrum disorder. It is important to note that males have a significantly higher risk of developing autistic spectrum disorder compared to females, with a male to female ratio of approximately 4:1.
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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This question is part of the following fields:
- Paediatrics
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Question 5
Correct
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A 3-month-old previously healthy boy is brought into the pediatrician's office by his father who is concerned about a change in his behavior. The father suspects his child has a fever. During the examination, the baby is found to have a temperature of 38.5 ºC but no other notable findings.
What should be the next course of action?Your Answer: Urgent referral for paediatric assessment at the hospital
Explanation:If a child under 3 months old has a fever above 38ºC, it is considered a high-risk situation and requires urgent assessment. This is a crucial factor to consider when evaluating a child with a fever. The NICE guidelines use a traffic light system to categorize the risk level of children under 5 with a fever, taking into account various factors such as the child’s appearance, activity level, respiratory function, circulation, hydration, and temperature. If the child falls under the green category, they can be managed at home with appropriate care advice. If they fall under the amber category, parents should be given advice and provided with a safety net, or the child should be referred for pediatric assessment. Children in the red category must be referred urgently to a pediatric specialist. In children under 3 months with fever, NICE recommends performing various investigations such as blood culture, full blood count, c-reactive protein, urine testing for urinary tract infections, stool culture if diarrhea is present, and chest x-ray if there are respiratory signs. Lumbar puncture should be performed in infants under 1 month old, all infants aged 1-3 months who appear unwell, and infants aged 1-3 months with a white blood cell count (WBC) less than 5 × 109/liter or greater than 15 × 109/liter. NICE also recommends administering parenteral antibiotics to this group of patients.
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.
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This question is part of the following fields:
- Paediatrics
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Question 6
Correct
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A 5-year-old girl is brought to the Emergency Department with a 6-day history of fever and irritability, with red eyes and reduced eating for the last 24 hours. On examination, she was noted to have dry and cracked lips, mild conjunctivitis and cervical lymphadenopathy.
Given the likely diagnosis, what is the most important investigation?Your Answer: Echocardiogram
Explanation:Kawasaki Disease: Diagnosis, Treatment, and Monitoring
Kawasaki disease is a febrile vasculitis affecting small to medium-sized arteries in children under the age of 5 years. Diagnosis is based on clinical presentation, including 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. Atypical cases may present with fewer symptoms. An echocardiogram is essential on admission to assess cardiac function and for the presence of aneurysms. Treatment involves inpatient care, intravenous immunoglobulins (IVIG), antipyretics, and monitoring of cardiovascular function. Corticosteroids may be used as an adjunct to IVIG. Aspirin is indicated for Kawasaki disease. Serial echocardiography is advised to monitor for any changes/worsening. If recognised early and treated appropriately, the prognosis is very good. If not, it carries a high morbidity as it is associated with the formation of arterial aneurysms and development of congestive heart disease. Other tests, such as ESR, throat swab, ASOT, and chest X-ray, may be performed but are not critical for the care and management of the patient.
Understanding Kawasaki Disease: Diagnosis, Treatment, and Monitoring
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This question is part of the following fields:
- Paediatrics
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Question 7
Correct
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An 8-year-old boy comes to the paediatric department with a 5-day history of epistaxis and mucosal bleeding during tooth brushing. He has no significant medical history except for a cold he had 3 weeks ago. Upon examination, his vital signs are normal, but he has multiple bruises and petechiae on his upper and lower limbs. The following laboratory tests were ordered: Hb 140 g/L (135-180), Platelets 33 * 109/L (150 - 400), WBC 7.3 * 109/L (4.0 - 11.0), Na+ 138 mmol/L (135 - 145), K+ 4.1 mmol/L (3.5 - 5.0), Urea 5.1 mmol/L (2.0 - 7.0), Creatinine 110 µmol/L (55 - 120). What is the most probable diagnosis?
Your Answer: Immune thrombocytopenic purpura
Explanation:When a child presents with petechiae and no fever, ITP should be considered as a possible diagnosis. ITP is an autoimmune disorder that causes thrombocytopenia without any identifiable cause. It is most commonly found in children and women and often follows a viral illness. Symptoms include mucosal bleeding, epistaxis, petechiae, and bruising.
Acute lymphoblastic leukaemia is an unlikely diagnosis in this case, as the patient’s normal haemoglobin and white cell count do not suggest malignancy.
Disseminated intravascular coagulation (DIC) is also unlikely, as there is no evidence of unregulated bleeding or thrombosis triggered by trauma, sepsis, obstetric disorders, or malignancy.
Henoch-Schönlein purpura (HSP) is another possible diagnosis, but the lack of additional symptoms and the presence of bruising and easy bleeding make ITP more likely. HSP is a form of IgA vasculitis that causes a palpable purpuric rash, abdominal pain, and arthralgia, and is commonly triggered by a viral infection. Most cases of HSP are self-limiting or resolve with symptomatic treatment.
Understanding Immune Thrombocytopenia (ITP) in Children
Immune thrombocytopenic purpura (ITP) is a condition where the immune system attacks the platelets, leading to a decrease in their count. This condition is more common in children and is usually acute, often following an infection or vaccination. The antibodies produced by the immune system target the glycoprotein IIb/IIIa or Ib-V-IX complex, causing a type II hypersensitivity reaction.
The symptoms of ITP in children include bruising, a petechial or purpuric rash, and less commonly, bleeding from the nose or gums. A full blood count is usually sufficient to diagnose ITP, and a bone marrow examination is only necessary if there are atypical features.
In most cases, ITP resolves on its own within six months, without any treatment. However, if the platelet count is very low or there is significant bleeding, treatment options such as oral or IV corticosteroids, IV immunoglobulins, or platelet transfusions may be necessary. It is also advisable to avoid activities that may result in trauma, such as team sports. Understanding ITP in children is crucial for prompt diagnosis and management of this condition.
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This question is part of the following fields:
- Paediatrics
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Question 8
Incorrect
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A 12-year-old boy is presented by his father with a widespread skin rash. The boy has been experiencing itching for the past 3 days and has developed a fever along with the rash. During the examination, it is observed that the rash consists of macules, papules, crusted lesions, and vesicles that have spread across most of his body. The father has been administering ibuprofen to the boy for relief from fever and discomfort.
What is the probable diagnosis, and why is ibuprofen not recommended in this case?Your Answer: The risk of Reye's syndrome
Correct Answer: The increased risk of necrotising fasciitis
Explanation:The symptoms exhibited by this patient are consistent with chickenpox, including lesions at various stages of healing, fever, and itching. However, it is important to note that the use of NSAIDs can increase the risk of necrotising fasciitis in chickenpox patients. While ibuprofen is a suitable NSAID for patients of all ages, it is important to avoid aspirin due to the risk of Reye’s syndrome in children with chickenpox. Short-term use of ibuprofen during acute febrile illnesses is unlikely to cause significant gastrointestinal side effects.
Chickenpox: Causes, Symptoms, and Management
Chickenpox is a viral infection caused by the varicella zoster virus. It is highly contagious and can be spread through respiratory droplets. The virus can also reactivate later in life, causing shingles. Chickenpox is most infectious four days before the rash appears and until five days after the rash first appears. The incubation period is typically 10-21 days. Symptoms include fever, an itchy rash that starts on the head and trunk before spreading, and mild systemic upset.
Management of chickenpox is supportive and includes keeping cool, trimming nails, and using calamine lotion. School exclusion is recommended during the infectious period. Immunocompromised patients and newborns with peripartum exposure should receive varicella zoster immunoglobulin (VZIG). If chickenpox develops, IV acyclovir may be considered. Secondary bacterial infection of the lesions is a common complication, which may be increased by the use of NSAIDs. In rare cases, invasive group A streptococcal soft tissue infections may occur, resulting in necrotizing fasciitis. Other rare complications include pneumonia, encephalitis, disseminated haemorrhagic chickenpox, arthritis, nephritis, and pancreatitis.
Radiographic Findings in Varicella Pneumonia
Varicella pneumonia is a rare complication of chickenpox that can occur in immunocompromised patients or adults. Radiographic findings of healed varicella pneumonia may include miliary opacities throughout both lungs, which are of uniform size and dense, suggesting calcification. There is typically no focal lung parenchymal mass or cavitating lesion seen. These findings are characteristic of healed varicella pneumonia.
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This question is part of the following fields:
- Paediatrics
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Question 9
Correct
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A 7-year-old girl is brought to the clinic by her mother who reports that her daughter becomes breathless when climbing stairs at home. The mother is concerned as her daughter is unable to keep up with her peers. During the examination, multiple small bruises of varying ages are observed on both lower legs. The patient is afebrile and appears to be in good health. A soft systolic murmur is heard on the left sternal edge during cardiac examination. Palpation of the abdomen reveals a mass in both the left and right hypochondriac regions. What is the most likely diagnosis?
Your Answer: Acute lymphoid leukaemia
Explanation:Children under the age of 6 are less likely to be affected by TTP, which typically occurs in individuals between the ages of 30 and 50 and is often accompanied by neurological and renal symptoms. ITP is characterized by bleeding and petechiae, with low platelet counts but normal levels of other blood cells. DIC is typically a result of an underlying condition such as trauma, burns, or sepsis, and is often accompanied by systemic symptoms and circulatory collapse.
Acute lymphoblastic leukaemia (ALL) is a type of cancer that commonly affects children and accounts for 80% of childhood leukaemias. It is most prevalent in children between the ages of 2-5 years, with boys being slightly more affected than girls. Symptoms of ALL can be divided into those caused by bone marrow failure, such as anaemia, neutropaenia, and thrombocytopenia, and other features like bone pain, splenomegaly, and hepatomegaly. Fever is also present in up to 50% of new cases, which may indicate an infection or a constitutional symptom. Testicular swelling may also occur.
There are three types of ALL: common ALL, T-cell ALL, and B-cell ALL. Common ALL is the most common type, accounting for 75% of cases, and is characterized by the presence of CD10 and a pre-B phenotype. Poor prognostic factors for ALL include age less than 2 years or greater than 10 years, a white blood cell count greater than 20 * 109/l at diagnosis, T or B cell surface markers, non-Caucasian ethnicity, and male sex.
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This question is part of the following fields:
- Paediatrics
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Question 10
Incorrect
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A 24-hour old baby is evaluated in the neonatal intensive care unit due to tremors in his limbs, as observed by his nurse. He is also experiencing poor feeding, increased irritability, and excessive drowsiness. The baby was delivered via emergency caesarean section at 34 weeks due to reduced foetal movements and foetal bradycardia. The mother had an otherwise healthy pregnancy, but was taking lamotrigine for epilepsy. During the examination, the baby appeared larger than expected for his prematurity and exhibited visible arm tremors. Based on these symptoms, which aspect of the baby's medical history is most likely responsible for his condition?
Your Answer: Delivery via emergency caesarean section
Correct Answer: Prematurity
Explanation:Prematurity is a significant risk factor for neonatal hypoglycaemia, which is characterized by autonomic symptoms such as irritability and jitteriness, as well as neuroglycopenic symptoms like drowsiness and poor feeding. This is because preterm infants have not yet developed the same glycogen reserve as term infants. Admission to the neonatal intensive care unit, delivery via emergency caesarean section, formula feeding, and maternal lamotrigine use are not independent risk factors for neonatal hypoglycaemia. While caesarean section may result in transient hypoglycaemia, it is not typically symptomatic due to the lack of catecholamine release present during vaginal delivery. Terbutaline use, on the other hand, may increase the risk of hypoglycaemia.
Neonatal Hypoglycaemia: Causes, Symptoms, and Management
Neonatal hypoglycaemia is a common condition in newborn babies, especially in the first 24 hours of life. While there is no agreed definition, a blood glucose level of less than 2.6 mmol/L is often used as a guideline. Transient hypoglycaemia is normal and usually resolves on its own, but persistent or severe hypoglycaemia may be caused by various factors such as preterm birth, maternal diabetes mellitus, IUGR, hypothermia, neonatal sepsis, inborn errors of metabolism, nesidioblastosis, or Beckwith-Wiedemann syndrome.
Symptoms of neonatal hypoglycaemia can be autonomic, such as jitteriness, irritability, tachypnoea, and pallor, or neuroglycopenic, such as poor feeding/sucking, weak cry, drowsiness, hypotonia, and seizures. Other features may include apnoea and hypothermia. Management of neonatal hypoglycaemia depends on the severity of the condition and whether the newborn is symptomatic or not. Asymptomatic babies can be encouraged to feed normally and have their blood glucose monitored, while symptomatic or severely hypoglycaemic babies may need to be admitted to the neonatal unit and receive intravenous infusion of 10% dextrose.
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This question is part of the following fields:
- Paediatrics
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