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Question 1
Incorrect
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What is the failure rate of sterilisation for women?
Your Answer: 1 in 300
Correct Answer: 1 in 200
Explanation:The failure rate of female sterilisation is 1 in 200.
Understanding Female Sterilisation
Female sterilisation is a common method of permanent contraception for women. It has a low failure rate of 1 per 200 and is usually performed by laparoscopy under general anaesthetic. The procedure is generally done as a day case and involves various techniques such as clips (e.g. Filshie clips), blockage, rings (Falope rings) and salpingectomy. However, there are potential complications such as an increased risk of ectopic pregnancy if sterilisation fails, as well as general risks associated with anaesthesia and laparoscopy.
In the event that a woman wishes to reverse the procedure, the current success rate of female sterilisation reversal is between 50-60%. It is important for women to understand the risks and benefits of female sterilisation before making a decision.
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This question is part of the following fields:
- Gynaecology And Breast
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Question 2
Correct
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A 30-year-old woman comes to the clinic complaining of a headache that woke her up from sleep this morning and blurred vision. She reports experiencing similar headaches with nausea and vomiting for the past two years, which have not responded to over-the-counter medications. She has no significant medical history and is not taking any regular medication.
During the examination, her vital signs are stable, and her neurological examination is unremarkable. Her BMI is 36 kg/m2.
What is the probable diagnosis?Your Answer: Idiopathic intracranial hypertension
Explanation:If a young, obese female complains of headaches, blurred vision, and nausea/vomiting, it is likely that she is suffering from idiopathic intracranial hypertension. This condition may cause symptoms to improve during the day when the patient is upright, but worsen when they bend down.
While acute angle glaucoma can also cause headaches and blurred vision, it typically presents with unilateral eye pain and abnormal pupillary reflexes on neurological examination.
Cerebral venous sinus thrombosis is less likely as a cause of the patient’s symptoms, as it typically presents with headache as the primary symptom, along with focal or generalized neurological features such as seizures. Risk factors for clot formation should be considered in the patient’s history.
Although migraines are a common cause of recurrent headaches, the patient’s high BMI and generalized nature of the headache, along with the positional element, suggest idiopathic intracranial hypertension as the most likely cause.
Understanding Idiopathic Intracranial Hypertension
Idiopathic intracranial hypertension, also known as pseudotumour cerebri, is a medical condition that is commonly observed in young, overweight females. The condition is characterized by a range of symptoms, including headache, blurred vision, and papilloedema, which is usually present. Other symptoms may include an enlarged blind spot and sixth nerve palsy.
There are several risk factors associated with idiopathic intracranial hypertension, including obesity, female sex, pregnancy, and certain drugs such as the combined oral contraceptive pill, steroids, tetracyclines, vitamin A, and lithium.
Management of idiopathic intracranial hypertension may involve weight loss, diuretics such as acetazolamide, and topiramate, which can also cause weight loss in most patients. Repeated lumbar puncture may also be necessary, and surgery may be required to prevent damage to the optic nerve. This may involve optic nerve sheath decompression and fenestration, or a lumboperitoneal or ventriculoperitoneal shunt to reduce intracranial pressure.
It is important to note that if intracranial hypertension is thought to occur secondary to a known cause, such as medication, it is not considered idiopathic. Understanding the risk factors and symptoms associated with idiopathic intracranial hypertension can help individuals seek appropriate medical attention and management.
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This question is part of the following fields:
- Neurology
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Question 3
Incorrect
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A 45-year-old man visits his GP for a medication review after undergoing a renal transplant three months ago. The GP notes that the patient's medication was changed following the transplant, with the addition of immunosuppressant medication. What is the most probable immunosuppressive drug regimen for this patient?
Your Answer: Prednisolone, sirolimus
Correct Answer: Mycophenolatemofetil (MMF), prednisolone, tacrolimus
Explanation:After a renal transplant, patients require immunosuppressive drugs to prevent rejection. There are four classes of maintenance drugs: calcineurin inhibitors, antiproliferative agents, mammalian target of rapamycin inhibitors, and steroids. Mycophenolate mofetil is a cost-efficient antiproliferative agent that reduces the risk of acute rejection by 50%. Prednisolone is a steroid that is typically used in low doses and gradually reduced over several months. Azathioprine may also be used in initial therapy, but a calcineurin inhibitor is necessary. Basiliximab may be used for induction therapy within four days of the transplant. Ciclosporin and prednisolone are both used for maintenance immunosuppression, but require an antiproliferative agent to complete the regimen. Sirolimus may be used with a corticosteroid in patients intolerant of calcineurin inhibitors, according to National Institute for Health and Care Excellence guidelines.
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This question is part of the following fields:
- Allergy And Immunology
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Question 4
Incorrect
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What is the definition of a Child Protection Plan?
Your Answer: A plan discussing the medical needs of a child with various multidisciplinary members including doctors, nurses and health visitors
Correct Answer: A plan to assess the likelihood of the child suffering harm and decide goals to reduce the risk of harm and how to best protect the child while clarifying the responsibilities of the people involved
Explanation:Child Protection Plans
At an initial Child Protection conference, the decision to make a child subject to a Protection Plan is made. This plan is created if a child is at continuing risk of significant harm. The purpose of the Child Protection Plan is to assess the likelihood of the child suffering harm and to decide on goals to reduce the risk of harm and protect the child. It should also clarify the responsibilities of the people involved and actions to be taken. Additionally, the plan should outline how the processes will be monitored and evaluated.
Overall, the Child Protection Plan is a crucial tool in ensuring the safety and well-being of vulnerable children. It provides a framework for all parties involved to work together towards a common goal of protecting the child from harm. By setting clear goals and responsibilities, the plan helps to ensure that everyone is on the same page and working towards the same objectives. Regular monitoring and evaluation of the plan also help to ensure that it remains effective and relevant over time.
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This question is part of the following fields:
- Children And Young People
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Question 5
Incorrect
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A 56-year-old man visits his General Practice Surgery, requesting travel vaccinations at short notice. His daughter has been taken ill on her gap year and is in hospital in Thailand, and he wants to travel over there within a few days. He is on interferon and ribavirin for chronic asymptomatic hepatitis C infection, which was diagnosed six months ago. He was fully immunised as a child and was given some additional vaccinations on diagnosis with hepatitis C. He wants to know whether there is time to have any travel vaccinations before he travels.
Which of the following is the most appropriate vaccination to offer, which can be given up to the day of travel?Your Answer: Rabies
Correct Answer: Diphtheria, tetanus and pertussis (DTP)
Explanation:The patient is planning to travel to Borneo and needs to know which vaccinations are appropriate to receive before departure. The DTP vaccine, which protects against diphtheria, tetanus, and pertussis, is recommended and can be given up to the day of travel. Rabies vaccination is also advised for those visiting areas where the disease is endemic, but it requires a course of three injections over 28 days and cannot be given within days of travel. Hepatitis A is a common disease in many parts of the world and can be contracted through contaminated food and water, but the patient’s known diagnosis of hepatitis C means that she has likely already been vaccinated against hepatitis A and B. Hepatitis B is generally given as a course of injections over six months, which is not feasible for the patient’s short timeline. Japanese Encephalitis is rare in travelers and requires two separate injections a month apart, which doesn’t fit with the patient’s schedule.
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This question is part of the following fields:
- Allergy And Immunology
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Question 6
Incorrect
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A toddler is brought in for a development review. The child has a vocabulary of approximately 50 single words, some two-word phrases and many of the words can be easily understood by strangers.
Which of the following is the most likely age range for this child if development is normal?Your Answer: 36-42 months
Correct Answer: 18-24 months
Explanation:Speech Development Milestones in Children: From 12-42 Months
Speech development in children is a gradual process that varies from child to child. It starts with responding to sounds and progresses to babbling and saying simple words like mama and dada. By 18-24 months, children have a vocabulary of 50 or more words and can use some two-word phrases. By 24-30 months, their vocabulary expands to about 300 words, including names. Between two and three years, children can form sentences of three to five words and use pronouns, plurals, and past tense. By three to four years, they can use three to six words per sentence, ask and answer questions, and tell stories. It’s important to note that speech delay affects between 6% and 19% of children, and early detection and intervention can prevent educational, emotional, and social problems. Serious causes of delayed speech include deafness, learning disability, and autism.
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This question is part of the following fields:
- Children And Young People
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Question 7
Correct
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A 68-year-old lady with recently diagnosed rheumatoid arthritis is seen with anaemia.
She originally presented three to four months ago with arthralgia affecting her hands and feet and was referred to secondary care for disease management.
She has recently been started on methotrexate once weekly to try and control her symptoms. She also continues to take oral steroids which are being tapered off since the initiation of DMARD therapy. Her current prednisolone dose is 5 mg daily. Her other medications consist of folic acid 5 mg weekly and PRN ibuprofen 400 mg.
She had a full blood count performed recently which revealed:
Haemoglobin 98 g/L (115-155)
MCV 74.4 fL (76-96)
Red cell count 4.2 ×1012/L -
Further tests were then arranged which revealed:
Ferritin 22 μg/L (15-300)
Which of the following tests is most useful in identifying the underlying cause of this patient's anaemia?Your Answer: Serum iron and total iron binding capacity measurement
Explanation:Diagnosis of Microcytic Anaemia in a Patient with Rheumatoid Arthritis
In a patient with rheumatoid arthritis presenting with microcytic anaemia, the possibility of anaemia of chronic disease should be considered. However, further tests should be done as a reversible or treatable factor may be found. B12 deficiency and haemolytic anaemia can be ruled out as they cause elevated MCV measurements. Microcytic anaemia should prompt consideration of iron deficiency, and thalassaemia trait should also be borne in mind if indicated clinically. Iron/TIBC measurement is the most likely test to diagnose microcytic anaemia due to iron deficiency. However, the normal ferritin should be interpreted with caution as it may be elevated due to underlying inflammation or infection. In this case, iron/total iron binding capacity may be more useful markers of iron deficiency. It is also worth mentioning that DMARDs such as methotrexate can cause anaemia, but this is typically macrocytic and not the case in this patient.
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This question is part of the following fields:
- Haematology
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Question 8
Correct
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A 40-year-old man is concerned about the appearance of both his great toe nails. He has noticed separation of the nail plate from the nail bed distally. The other toenails appear normal.
What is the most probable diagnosis?Your Answer: Trauma
Explanation:Differential diagnosis of onycholysis
Onycholysis is a condition where the nail separates from the nail bed, often starting at the distal edge and progressing proximally. It can have various causes, including infections, skin diseases, and mechanical trauma. Here we consider some possible diagnoses for a patient with onycholysis of the great toenails without other significant findings.
Trauma: Onycholysis can result from repeated or acute trauma to the nail, which is common in sports or due to ill-fitting shoes. This is a likely cause in this case, given the location and absence of other features.
Psoriasis: Psoriasis is a chronic autoimmune disease that can affect the skin and nails, causing red, scaly patches and pitting of the nails. However, the patient would typically have other skin lesions and a history of psoriasis, which is not evident here.
Chronic paronychia: Paronychia is an infection of the skin around the nail, which can cause pain, swelling, and pus. However, this doesn’t involve the nail itself and is not consistent with the presentation.
Eczema: Eczema is a common skin condition that can cause itching, redness, and scaling of the skin. If it affects the nail matrix, it can lead to transverse ridging of the nail, but not onycholysis.
Tinea unguium: Tinea unguium, also known as onychomycosis, is a fungal infection of the nail that can cause thickening, discoloration, and onycholysis. However, the nail would typically be yellow or white and show other signs of fungal infection.
In summary, trauma is the most likely cause of onycholysis in this case, but other possibilities should be considered based on the clinical context and additional findings.
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This question is part of the following fields:
- Dermatology
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Question 9
Correct
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A father brings his 3-month-old baby to the pediatrician's office, reporting that the infant has been vomiting and regurgitating after every feeding with a cow's milk-based formula. The vomiting is not forceful, and there is no unusual coloration with blood or bile. The baby doesn't appear to be in significant distress, but the father has also noticed that the child has persistent diarrhea. The father had to switch to formula as the mother was unable to produce enough breast milk. He tried a soy milk-based formula on the advice of a friend, but it did not make any difference.
What would be the most appropriate course of action?Your Answer: Extensive hydrolysed formula milk
Explanation:Soya milk may not be a suitable alternative for infants with cow’s milk protein allergy as many of them are also intolerant to it. Amino acid-based formula is the recommended management for severe cases or when extensive hydrolysed formula milk is ineffective.
Breastfeeding is encouraged if the mother eliminates cows milk proteins from her diet, but it may not be practical if she cannot produce enough milk for the child. For infants with mild to moderate cows milk protein allergy who are formula-fed, extensive hydrolysed milk formula is the first-line management.
Gastro-oesophageal reflux (GORD) may be managed with omeprazole or ranitidine, but only after a 1-2 week trial of alginate therapy. However, if the infant presents with persistent diarrhoea, cow’s milk protein allergy is a more likely diagnosis than GORD.
Cow’s milk protein intolerance/allergy (CMPI/CMPA) is a condition that affects approximately 3-6% of children and typically presents in formula-fed infants within the first 3 months of life. However, it can also occur in exclusively breastfed infants, although this is rare. Both immediate (IgE mediated) and delayed (non-IgE mediated) reactions can occur, with CMPA usually used to describe immediate reactions and CMPI for mild-moderate delayed reactions. Symptoms of CMPI/CMPA include regurgitation and vomiting, diarrhea, urticaria, atopic eczema, colic symptoms such as irritability and crying, wheezing, chronic cough, and rarely, angioedema and anaphylaxis.
Diagnosis of CMPI/CMPA is often based on clinical presentation, such as improvement with cow’s milk protein elimination. However, investigations such as skin prick/patch testing and total IgE and specific IgE (RAST) for cow’s milk protein may also be performed. If symptoms are severe, such as failure to thrive, referral to a pediatrician is necessary.
Management of CMPI/CMPA depends on whether the child is formula-fed or breastfed. For formula-fed infants with mild-moderate symptoms, extensive hydrolyzed formula (eHF) milk is the first-line replacement formula, while amino acid-based formula (AAF) is used for infants with severe CMPA or if there is no response to eHF. Around 10% of infants with CMPI/CMPA are also intolerant to soy milk. For breastfed infants, mothers should continue breastfeeding while eliminating cow’s milk protein from their diet. Calcium supplements may be prescribed to prevent deficiency while excluding dairy from the diet. When breastfeeding stops, eHF milk should be used until the child is at least 12 months old and for at least 6 months.
The prognosis for CMPI/CMPA is generally good, with most children eventually becoming milk tolerant. In children with IgE-mediated intolerance, around 55% will be milk tolerant by the age of 5 years, while in children with non-IgE mediated intolerance, most will be milk tolerant by the age of 3 years. However, a challenge is often performed in a hospital setting as anaphylaxis can occur.
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This question is part of the following fields:
- Children And Young People
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Question 10
Incorrect
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A 72-year-old man with a four-month history of general malaise has a routine blood test that shows raised serum calcium and raised alkaline phosphatase.
Which of the following statements regarding a possible diagnosis is correct?Your Answer: Sarcoidosis frequently causes hypocalcaemia
Correct Answer: Raised parathyroid hormone levels in the presence of high calcium suggest hyperparathyroidism
Explanation:Understanding Hyperparathyroidism and its Differential Diagnosis
Hyperparathyroidism is a condition characterized by elevated levels of parathyroid hormone and calcium. Primary hyperparathyroidism is suspected when high calcium levels are accompanied by high parathyroid hormone levels. In this condition, bone alkaline phosphatase levels are usually elevated due to increased osteoblastic activity. However, in some cases, alkaline phosphatase levels may remain within the normal range.
Contrary to popular belief, myeloma doesn’t often present with high alkaline phosphatase levels. In fact, multiple myeloma is usually associated with normal alkaline phosphatase levels, unless there are fractures. This is because bony destruction in myeloma is caused by increased osteoclastic activity without any compensatory remodelling by osteoblasts.
Excess dietary calcium is not a common cause of high alkaline phosphatase levels. Instead, it can lead to hypercalcaemia. High calcium and alkaline phosphatase levels are usually indicative of malignancy, but they can also be caused by thyrotoxicosis or sarcoidosis. In bony metastases, the raised alkaline phosphatase reflects increased osteoblastic activity.
Sarcoidosis is not typically associated with hypocalcaemia. Instead, it can cause hypercalcaemia due to the uncontrolled synthesis of 1,25-dihydroxyvitamin D3 by macrophages, leading to increased calcium absorption in the intestine and resorption in bone. Raised alkaline phosphatase levels in sarcoidosis may reflect the presence of liver granulomas.
In summary, hyperparathyroidism should be suspected in the presence of high calcium and parathyroid hormone levels. However, other conditions such as myeloma, excess dietary calcium, and sarcoidosis can also cause similar symptoms and should be considered in the differential diagnosis.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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Question 11
Correct
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A patient who has just returned from the Ivory Coast is experiencing cyclical fever and headache. During the examination, splenomegaly is observed. After a blood film, the patient is diagnosed with Plasmodium vivax malaria. The patient, who is in his 50s, is initially treated with chloroquine and later given primaquine. What is the advantage of administering primaquine?
Your Answer: Destroy liver hypnozoites and prevent relapse
Explanation:To prevent relapse in non-falciparum malaria, primaquine is administered to eliminate liver hypnozoites.
Non-Falciparum Malaria: Causes, Features, and Treatment
Non-falciparum malaria is caused by Plasmodium vivax, Plasmodium ovale, Plasmodium malariae, and Plasmodium knowlesi. Plasmodium vivax is commonly found in Central America and the Indian Subcontinent, while Plasmodium ovale is typically found in Africa. Plasmodium malariae is associated with nephrotic syndrome. Plasmodium knowlesi is found predominantly in South East Asia.
The general features of non-falciparum malaria include fever, headache, and splenomegaly. Cyclical fever every 48 hours is associated with Plasmodium vivax and Plasmodium ovale, while Plasmodium malariae is associated with cyclical fever every 72 hours. Ovale and vivax malaria have a hypnozoite stage and may relapse following treatment.
In areas known to be chloroquine-sensitive, the World Health Organization recommends either an artemisinin-based combination therapy (ACT) or chloroquine for treatment. In areas known to be chloroquine-resistant, an ACT should be used. However, ACTs should be avoided in pregnant women. Patients with ovale or vivax malaria should be given primaquine following acute treatment with chloroquine to destroy liver hypnozoites and prevent relapse.
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This question is part of the following fields:
- Infectious Disease And Travel Health
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Question 12
Incorrect
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A 27-year-old patient comes in for an emergency appointment reporting left-sided ear pain for the past two days. Upon waking up today, she noticed that her face was drooping on the left side and she was unable to fully close her left eye. Based on these symptoms, you suspect a diagnosis of Bell's Palsy. If you were to ask the patient to raise her left eyebrow, what would you expect to find and why?
Your Answer: Ability to raise the left eyebrow as frontalis muscle is not affected by Bell's palsy
Correct Answer: Inability to raise the left eyebrow as Bell's palsy is due to a lower motor neuron lesion
Explanation:Bell’s palsy is a sudden, one-sided facial nerve paralysis of unknown cause. It typically affects individuals between the ages of 20 and 40, and is more common in pregnant women. The condition is characterized by a lower motor neuron facial nerve palsy that affects the forehead, while sparing the upper face. Patients may also experience post-auricular pain, altered taste, dry eyes, and hyperacusis.
The management of Bell’s palsy has been a topic of debate, with various treatment options proposed in the past. However, there is now consensus that all patients should receive oral prednisolone within 72 hours of onset. The addition of antiviral medications is still a matter of discussion, with some experts recommending it for severe cases. Eye care is also crucial to prevent exposure keratopathy, and patients may need to use artificial tears and eye lubricants. If they are unable to close their eye at bedtime, they should tape it closed using microporous tape.
Follow-up is essential for patients who show no improvement after three weeks, as they may require urgent referral to ENT. Those with more long-standing weakness may benefit from a referral to plastic surgery. The prognosis for Bell’s palsy is generally good, with most patients making a full recovery within three to four months. However, untreated cases can result in permanent moderate to severe weakness in around 15% of patients.
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This question is part of the following fields:
- Ear, Nose And Throat, Speech And Hearing
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Question 13
Incorrect
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A 75-year-old Caucasian lady comes to the clinic with a complaint of left vision becoming wavy and blurry for the past week. She reports that her venetian blinds appear distorted with her left eye. She has no other medical issues. What would be the most appropriate next step in managing her condition?
Your Answer: Start the patient on topical ocular steroids
Correct Answer: Urgent ophthalmology referral
Explanation:Macular Degeneration: A Common Cause of Distorted Vision in Elderly Patients
An elderly patient complaining of wavy distorted vision should raise suspicion of macular degeneration, a common age-related eye condition. There are two types of macular degeneration: dry and wet. Unfortunately, there is no treatment for the dry type, but patients can be advised on good lighting and the use of magnifying glasses to aid their vision. However, patients should be aware that there is a 10% chance of the dry type converting into the more aggressive wet type.
The wet type of macular degeneration can be treated with anti-vascular endothelial growth factor (anti-VEGF) injections, which are given directly into the eye. This treatment aims to stabilize the condition and prevent further loss of central vision. While it is not a cure, a large minority of patients may experience some improvement in their vision. Therefore, it is crucial to refer patients with suspected macular degeneration to an ophthalmologist urgently, as delays may impact the prognosis.
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This question is part of the following fields:
- Eyes And Vision
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Question 14
Incorrect
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You assess an 8-year-old boy who was released from hospital 3 days ago after undergoing a tonsillectomy. His mother reports that he is experiencing a 'sore throat' despite taking both paracetamol and ibuprofen simultaneously. They were informed to anticipate some discomfort for approximately 5-7 days but are seeking your assistance in prescribing something to alleviate the pain. Physical examination reveals no abnormalities.
What is the best recommendation for pain relief?Your Answer: Add in codeine for breakthrough pain not controlled by paracetamol + ibuprofen
Correct Answer: Advice that he should persevere with paracetamol + ibuprofen
Explanation:Reye’s syndrome is a risk associated with the use of aspirin in children, therefore it should not be administered to them.
To avoid the risk of morphine toxicity and respiratory depression, the MHRA recommends that codeine should not be given to children under the age of 12.
Codeine, a commonly used pain medication, can have different effects on patients due to genetic variations in the CY62D6 component of the P450 enzyme system. Some patients may be more sensitive to the effects of codeine, which can lead to serious adverse events. A recent review found that paediatric patients, particularly those from southern European countries, the Middle East, and Africa, have a higher incidence of rapid codeine metabolism. This has led to reports of morphine toxicity in children, especially those with a history of obstructive sleep apnoea. As a result, the MHRA now advises that codeine should only be used in children over 12 years of age for pain that is not controlled by other medications. Additionally, breastfeeding mothers should avoid using codeine due to the potential effects of morphine toxicity on their babies.
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This question is part of the following fields:
- Children And Young People
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Question 15
Incorrect
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A 67-year-old woman presents to her General Practitioner complaining of chronic, unrelenting, dull epigastric pain radiating to her back. It is relieved when sitting forwards.
On examination, her body mass index is normal, but she says that she is losing weight; her clothes have become baggy on her. She explains that she doesn't feel like eating with the pain she is suffering.
Investigations reveal a haemoglobin level of 102 g/l (normal range: 115–165 g/l) while her alkaline phosphatase level is elevated.
What is the most appropriate initial investigation?
Your Answer: Arrange an upper gastrointestinal (GI) endoscopy
Correct Answer: Arrange an abdominal computed tomography (CT) scan
Explanation:Initial Management for Suspected Pancreatic Cancer: Abdominal CT Scan
When a patient over 60 years old presents with weight loss and abdominal pain, an urgent direct-access CT scan should be considered to assess for pancreatic cancer. Other symptoms that may indicate pancreatic cancer include diarrhea, back pain, nausea, vomiting, constipation, and new-onset diabetes. Patients with pancreatic cancer typically report anorexia, malaise, fatigue, mid-epigastric or back pain, and weight loss. The pain may be unrelenting and worse when lying flat.
The most characteristic sign of pancreatic carcinoma of the head of the pancreas is painless obstructive jaundice. Migratory thrombophlebitis and venous thrombosis also occur with higher frequency in patients with pancreatic cancer and may be the first presentation.
While the CA 19-9 antigen is elevated in 75-80% of patients with pancreatic carcinoma, it is not recommended for screening. An abdominal ultrasound scan may reveal a pancreatic malignancy, but a CT scan is the preferred imaging that should be carried out urgently.
Direct-access upper GI endoscopy may be appropriate for patients over 55 years old with weight loss and upper abdominal pain, reflux, or dyspepsia. However, in this case, an urgent CT scan is the most appropriate initial investigation due to the elevated alkaline phosphatase suggesting biliary obstruction. Checking ferritin levels may not be helpful in ruling in or out pancreatic cancer.
Initial Management for Suspected Pancreatic Cancer: Abdominal CT Scan
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This question is part of the following fields:
- Gastroenterology
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Question 16
Incorrect
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A 30-year-old man visits his General Practitioner with concerns about the increasing frequency of his migraines. He used to experience headaches once or twice a month, but over the past four months, he has had to take sumatriptan around 20 days a month. He occasionally combines it with co-codamol, but this doesn't alleviate the pain.
What is the best guidance you can offer this patient?Your Answer: Acute treatment is not required
Correct Answer: Medication overuse headache must be excluded before starting prophylaxis
Explanation:Understanding Migraine Prophylaxis: Important Considerations
Migraine prophylaxis is a treatment option for individuals who experience frequent and debilitating migraines. However, before starting prophylaxis, it is crucial to rule out medication overuse headache, which can be caused by frequent use of acute drugs. If medication overuse headache is suspected, drug withdrawal is necessary.
It is important to note that prophylaxis is not a substitute for acute treatment. While prophylaxis can reduce the frequency of attacks, acute treatment will still be required when migraines occur. Acute treatment typically involves simple analgesia, triptans, and antiemetics.
When starting prophylaxis, it is essential to titrate the dose slowly to avoid side-effects that may lead to premature discontinuation. This slow dose titration can cause a delay in efficacy, which may trigger discontinuation. Therefore, a careful explanation is necessary.
Prophylaxis is only indicated if migraines are significantly impacting daily function and quality of life, such as occurring more than once per week or being severe despite treatment. Other indications for prophylaxis include the risk of medication overuse headache or if acute treatments are contraindicated or ineffective.
While NICE recommends propranolol, topiramate, or amitriptyline as the first-line approach for prophylaxis, triptans are used to manage acute attacks. Understanding these important considerations can help individuals make informed decisions about their migraine treatment options.
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This question is part of the following fields:
- Neurology
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Question 17
Incorrect
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A 72-year-old man is admitted to hospital with shortness of breath. He is diagnosed with atrial fibrillation and heart failure.
Whilst in hospital he is started on:
Aspirin 75 mg OD
Simvastatin 40 mg ON
Bisoprolol 5 mg OD
Digoxin 125 mcg OD
Ramipril 10 mg OD and
Furosemide 40 mg OD.
He comes to see you a few days after discharge complaining of feeling generally unwell. His wife tells you that he has been a bit confused and that he has vomited on several occasions. The patient also reports that his vision is blurred and has a yellow tinge to it.
On examination, he is in atrial fibrillation at a rate of 60 beats per minute, his chest is clear and he has minimal pedal oedema.
He was seen two days ago by the practice nurse for blood tests.
The results showed
Sodium 136 mmol/L (137 - 144)
Potassium 2.8 mmol/L (3.5 - 4.9)
Urea 6.4 mmol/L (2.5 - 7.5)
Creatinine 124 μmol/L (60 - 110)
What is the underlying cause of his unwellness?Your Answer: Drug toxicity
Correct Answer: Renal artery stenosis
Explanation:Symptoms of Digoxin Toxicity
This patient is exhibiting symptoms of digoxin toxicity, which can occur when taking the medication for heart failure or atrial fibrillation. Hypokalaemia increases the risk of developing digoxin toxicity, which can cause confusion, vomiting, blurred vision, and xanthopsia (yellow tinge to vision). While confusion may also indicate an embolic CVA, the other symptoms do not fit. Liver failure would cause jaundice, but the patient’s vision has a yellow tinge, not their sclerae. Renal artery stenosis is usually suspected if renal function deteriorates after starting an ACE inhibitor, but the patient’s urea is normal. Therefore, the patient should be admitted to the hospital immediately for assessment and treatment. Digoxin-specific antibody fragments (Digibind ®) are available for use in cases of life-threatening overdosage, and may be necessary beyond withdrawing the digoxin and correcting any electrolyte abnormalities.
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This question is part of the following fields:
- Older Adults
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Question 18
Incorrect
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A 47-year-old woman with rheumatoid arthritis is being evaluated in the clinic as she has not responded well to methotrexate. The possibility of starting sulfasalazine is being considered. However, if she has an allergy to which of the following drugs, it may not be advisable to prescribe sulfasalazine?
Your Answer: Leflunomide
Correct Answer: Aspirin
Explanation:Sulfasalazine may cause a reaction in patients who are allergic to aspirin.
Sulfasalazine: A DMARD for Inflammatory Arthritis and Bowel Disease
Sulfasalazine is a type of disease modifying anti-rheumatic drug (DMARD) that is commonly used to manage inflammatory arthritis, particularly rheumatoid arthritis, as well as inflammatory bowel disease. This medication is a prodrug for 5-ASA, which works by reducing neutrophil chemotaxis and suppressing the proliferation of lymphocytes and pro-inflammatory cytokines.
However, caution should be taken when using sulfasalazine in patients with G6PD deficiency or those who are allergic to aspirin or sulphonamides due to the risk of cross-sensitivity. Adverse effects of sulfasalazine may include oligospermia, Stevens-Johnson syndrome, pneumonitis/lung fibrosis, myelosuppression, Heinz body anaemia, megaloblastic anaemia, and the potential to color tears and stain contact lenses.
Despite these potential side effects, sulfasalazine is considered safe to use during pregnancy and breastfeeding, making it a viable option for women who require treatment for inflammatory arthritis or bowel disease.
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This question is part of the following fields:
- Allergy And Immunology
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Question 19
Incorrect
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A 50-year-old man with type 2 diabetes has observed an increase in his blood glucose levels after starting a new medication for his lipids. Despite maintaining his usual diet and exercise routine, his HbA1c has worsened by approximately 0.5%. Which of the following drugs is the probable culprit?
Your Answer: Fenofibrate
Correct Answer: Ezetimibe
Explanation:Effects of Cholesterol-Lowering Medications on Glucose Control
The mechanism by which nicotinic acid affects glucose levels is not fully understood, but it may increase blood glucose in some patients by stimulating hepatic glucose output or blocking glucose uptake by skeletal muscle. However, for most patients with diabetes, nicotinic acid has minimal effect. A meta-analysis in 2011 suggested an increased risk of inducing diabetes in patients treated with intensive statin therapy, but this did not examine whether statins worsened glucose control in established diabetics. Cholestyramine may interact with oral hypoglycemics, but it doesn’t typically worsen diabetic control and may even improve it. Fenofibrate and ezetimibe have not been shown to worsen diabetic control. Overall, the effects of cholesterol-lowering medications on glucose control vary and should be monitored closely in patients with diabetes.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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Question 20
Incorrect
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A mother has coeliac disease. She is concerned that her 18-month-old daughter may have the condition.
Which of the following is the most commonly presenting feature of coeliac disease in a child of 18 months?Your Answer: Peripheral oedema
Correct Answer: Diarrhoea
Explanation:Understanding the Symptoms of Coeliac Disease
Coeliac disease is a condition that affects the digestive system and is caused by an intolerance to gluten. The incidence of this disease is higher in relatives of patients than in the general population. The symptoms of coeliac disease can vary depending on the age of the patient.
In children, the most common presenting symptom is diarrhoea, which occurs due to poor digestion and absorption of nutrients. Other symptoms include weight loss, vomiting, anorexia, irritability, constipation, abdominal protrusion, and eversion of the umbilicus. Children may also experience growth problems and delayed puberty.
In older children, teenagers, and young adults, anaemia is a common symptom due to malabsorption of iron and vitamins B12 and folate. Dermatitis herpetiformis, an itchy blistering disorder of the elbows, knees, and buttocks, may also be associated with coeliac disease in teenagers and adults.
Bloating and flatulence are common symptoms of coeliac disease, but they are more likely to be complained of in older people with the condition. Peripheral oedema, or swelling in the limbs, may rarely occur due to protein loss from enteropathy, but other causes such as nephrotic syndrome should be considered first.
In conclusion, understanding the symptoms of coeliac disease is important for early diagnosis and treatment. If you or a loved one is experiencing any of these symptoms, it is important to consult a healthcare professional for proper evaluation and management.
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This question is part of the following fields:
- Children And Young People
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Question 21
Incorrect
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A 68-year-old retired carpenter visits his GP complaining of an increasingly debilitating tremor in his hands. He first noticed the tremor about a year ago, but it has worsened over the past few months and he is now having difficulty keeping his hands steady when working with wood. Additionally, he reports changes in his voice with the appearance of a mild vibrato.
During the neurological examination, a high-frequency tremor is observed, most pronounced on the right, when the patient holds up his arms in front of him. The tremor disappears when the patient relaxes his arms and hands, and there is no evidence of ataxia or hypotonia.
What is the most likely cause of this patient's symptoms?Your Answer: Parkinson's disease
Correct Answer: Essential tremor
Explanation:Essential tremor is commonly associated with a sustained muscle tone tremor in the hands, but it can also affect the vocal cords. It is unlikely to be caused by cerebellar disease or Parkinson’s disease, and orthostatic tremor is rare and affects the legs.
Understanding Essential Tremor
Essential tremor, previously known as benign essential tremor, is a genetic condition that typically affects both upper limbs. Its main feature is a postural tremor that worsens when the arms are outstretched. However, the tremor can be improved by rest and alcohol consumption. Essential tremor is also the most common cause of titubation, which is a head tremor.
When it comes to managing essential tremor, the first-line treatment is propranolol. This medication can help reduce the severity of the tremors. In some cases, primidone may also be used to manage the condition. It’s important to note that essential tremor is a chronic condition that requires ongoing management.
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This question is part of the following fields:
- Neurology
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Question 22
Incorrect
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A 67-year-old male comes to the GP with a history of hearing loss for 6 months due to ototoxicity from furosemide. Upon examination, he has severe bilateral sensorineural hearing loss and can only hear spoken words if they are within 10 cm of him. He has been using hearing aids for 4 months, but they are not very effective. What aspect of his history indicates that cochlear implantation may be necessary?
Your Answer: Duration of hearing loss
Correct Answer: Duration of hearing aid use
Explanation:Before considering a cochlear implant as a management strategy for hearing loss in adults, a failed trial of hearing aids for at least 3 months is generally required, regardless of the cause, age at the time of hearing loss, duration, or severity of the condition. In the case of this patient, the duration of his hearing aid use is the most significant factor suggesting the appropriateness of a cochlear implant.
A cochlear implant is an electronic device that can be given to individuals with severe-to-profound hearing loss. The suitability for a cochlear implant is determined by audiological assessment and/or difficulty developing basic auditory skills in children, and a trial of appropriate hearing aids for at least 3 months in adults. The causes of severe-to-profound hearing loss can be genetic, congenital, idiopathic, infectious, viral-induced sudden hearing loss, ototoxicity, otosclerosis, Ménière disease, or trauma. Prior to an assessment for the cochlear implant, patients should have exhausted all medical therapies aimed at targeting any underlying pathological process contributing to the loss of hearing.
Surgical implantation may be complicated by infection, facial paralysis due to nerve injury intra-operatively, cerebrospinal fluid (CSF) leakage, and meningitis. Patients are discharged for the postoperative physical recovery of the implantation site and generally return to outpatient clinic 3-5 weeks post-op for device stimulation. Contraindications to consideration for cochlear implant include lesions of cranial nerve VIII or in the brain stem causing deafness, chronic infective otitis media, mastoid cavity or tympanic membrane perforation, and cochlear aplasia.
The device has both internal and external components. Externally, the microphone recognises the environmental sound and sends it to the sound processor. This, in turn, transforms the impulses received into a digital signal that which is then transferred to the transmitter coil. The transmitter coil conveys the signal to the internal components. Internally, a receiver, which magnetically connected to, and sits directly above the transmitter coil, and receives the impulses from the external apparatus which are then processed by a set of electrodes. The electrodes do the work that would be performed by the inner ear hair cells in a ‘normal’ ear. The brain can then process these signals to comprehend sound.
Rechargeable batteries can be used to power the apparatus and life span depends upon usage and the individual device. Hearing link describes cochlear implants as ‘…the world’s most successful medical prostheses in that less than 0.2% of recipients reject it or do not use it and the failure rate needing reimplantation is around 0.5%.’ It is important for patients to demonstrate an understanding of what to expect from cochlear implantation, including comprehension of the likely limitations of the device. Patients should also demonstrate an interest in using the
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This question is part of the following fields:
- Ear, Nose And Throat, Speech And Hearing
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Question 23
Incorrect
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A 70-year-old man is referred with a three month history of progressive disorientation and falls.
Four weeks beforehand, he locked his wife out of their house, claiming that she was trying to steal his clothes. He had also telephoned the police in the middle of night, claiming that he could see men hiding under his bed.
On examination, his face is expressionless, his speech is quiet and monotonic. There are no cranial nerve palsies, otherwise. Increased tone is present in all four limbs, with a slow festinant gait. Reflexes, power and sensation are all normal.
Halfway through your examination he tells you that he is leaving the room, because of the lobsters coming through the window. Unfortunately, therefore, formal cognitive testing and basic investigations cannot be performed.
Based on this evidence, what is the most likely diagnosis?Your Answer: Multiple system atrophy
Correct Answer: Parkinson's disease
Explanation:Diagnosis of Parkinsonism with Dementia, Paranoia, and Visual Hallucinations
This patient is exhibiting symptoms of parkinsonism, including bradykinesia and rigidity. However, the presence of florid visual hallucinations and paranoid ideation make Parkinson’s disease unlikely. Additionally, the patient’s normal eye movements and postural blood pressure suggest a parkinsonism plus syndrome is not the cause, while the absence of incontinence and gait abnormalities make normal pressure hydrocephalus less probable. The combination of parkinsonism with dementia, paranoia, and visual hallucinations is commonly seen in dementia with Lewy bodies. A diagnosis of Lewy body dementia should be considered in this case.
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This question is part of the following fields:
- Older Adults
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Question 24
Incorrect
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A researcher measures the height of 1000 6-year-old children. She finds that the mean height is 110 cm. She wants to calculate how dispersed the data is in relation to the mean.
Which of the following measurements would provide this information?Your Answer: The standard error
Correct Answer: The standard deviation
Explanation:Understanding Statistical Measures: Standard Deviation, Confidence Interval, Median, Mode, and Standard Error
Statistical measures are essential tools in analyzing data. They provide insights into the distribution, dispersion, and uncertainty of a dataset. In this article, we will discuss five common statistical measures: standard deviation, confidence interval, median, mode, and standard error.
Standard Deviation
The standard deviation is a measure of how dispersed the data is in relation to the mean. It tells us whether the data is clustered around the mean or spread out over a wider range. A low standard deviation indicates that the data is tightly clustered around the mean, while a high standard deviation suggests that the values are more spread out.Confidence Interval
The confidence interval measures the degree of uncertainty or certainty in a sampling method. It tells us the probability that a population parameter will fall between a set of values for a certain proportion of times. A wider confidence interval indicates greater uncertainty, while a narrower interval suggests greater certainty.Median
The median is the middle number in a sorted list of numbers. It gives us an idea of the central tendency of the data and can indicate whether the distribution is skewed. However, the standard deviation provides more information about the dispersion of the data.Mode
The mode is the value that occurs most frequently in a distribution. It can also indicate whether the distribution is skewed, but again, the standard deviation is a better measure of dispersion.Standard Error
The standard error of the mean measures how much discrepancy there is likely to be in a sample’s mean compared with the population mean. It takes into account the sample size and the standard deviation. A smaller standard error indicates greater precision in the sample mean.In conclusion, understanding these statistical measures is crucial in analyzing data and drawing meaningful conclusions. Each measure provides unique insights into the data, and using them together can give a more comprehensive understanding of the dataset.
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This question is part of the following fields:
- Population Health
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Question 25
Correct
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You decide to do a practice audit of your pediatric repeat prescribing system.
You have a discussion with your colleagues about the expected rate of prescribing errors in this population.
What percentage of pediatric prescriptions, upon evaluation, exhibit a prescribing or monitoring mistake?Your Answer: Around 75%
Explanation:GMC Study on Prescribing and Monitoring Errors in the UK
A recent study conducted by the General Medical Council (GMC) in the UK has shed light on the frequency and causes of prescribing and monitoring errors. The study analyzed 6,000 prescriptions and found that nearly 5% of them contained errors related to prescribing or monitoring. The most common cause of these errors was incomplete information on the prescription, accounting for a third of all errors identified.
This study provides valuable insights into the activities that can lead to prescribing and monitoring errors, helping to guide healthcare professionals towards safer practices. While exact figures may not be expected in an AKT examination, knowledge of the general outcomes of this study is reasonable and can be useful in clinical practice. By understanding the common causes of prescribing and monitoring errors, healthcare professionals can take steps to minimize the risk of such errors occurring in the future.
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This question is part of the following fields:
- Improving Quality, Safety And Prescribing
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Question 26
Incorrect
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A 7-year-old boy, the son of farmers, is brought to the clinic appearing quite ill. He has been experiencing fever, vomiting, diarrhea, leg pain, and headache overnight. He appears pale, has cold extremities, neck stiffness, and a few spots that blanch on pressure.
What is the most crucial management option to consider?Your Answer: Safety net and review in 24 hours
Correct Answer: Intramuscular penicillin and admit to hospital
Explanation:Early Treatment for Suspected Meningococcal Meningitis
Suspected meningococcal meningitis should be treated as an emergency, even in the absence of a non-blanching rash. The rash may be nonspecific or absent early on in the disease. Any patient with suspected bacterial meningitis or suspected meningococcal septicaemia should be admitted to the hospital immediately. In cases where there may be a delay in admission, Benzylpenicillin should be given. The recommended dose of benzylpenicillin is 1200 mg for adults, 600 mg for those aged 1-9 years, and 300 mg for those aged < 1 year. Cefotaxime may be used as an alternative in cases of penicillin allergy. Antibiotics should be injected intravenously or intramuscularly (IM) in adults and IM in children, with the recommended site of IM injection being the quadriceps muscle. GPs should carry these drugs (up-to-date) in their bags.
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This question is part of the following fields:
- Infectious Disease And Travel Health
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Question 27
Incorrect
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A 4-year-old child comes to the clinic and is suspected to have whooping cough infection. Apparently there is an outbreak in the area, and his mother objects to the principle of vaccination.
Which one of the following signs would increase suspicion of whooping cough infection?Your Answer: Lack of paroxysms with respect to the coughing pattern
Correct Answer: Very high fevers
Explanation:Pertussis: A Contagious Disease
Pertussis, also known as whooping cough, is a highly contagious respiratory disease caused by the bacterium Bordetella pertussis. The incubation period lasts for 7-10 days, after which the child becomes maximally infectious during the first 7-14 days of the illness, known as the catarrhal phase. Although antibiotics do not have a significant effect on symptoms, they can reduce the period of infectivity.
In children over two years old, a whoop may not always be present, but apnoeic episodes are common in infants. The bacterium is challenging to culture, but the use of PCR has improved diagnostic accuracy. While the annual death rate in the United Kingdom is low, pertussis is not a trivial disease, and vaccination is strongly recommended.
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This question is part of the following fields:
- Children And Young People
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Question 28
Incorrect
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A 50-year-old man with a history of ischaemic heart disease complains of myalgia. He has been taking aspirin, simvastatin, and atenolol for a long time. A creatine kinase test is performed due to his statin use, and the results show:
Creatine kinase 1,420 u/l (< 190 u/l)
The patient's symptoms appeared after starting a new medication. Which of the following is the most probable cause of the elevated creatine kinase level?Your Answer: Rifampicin
Correct Answer: Clarithromycin
Explanation:The interaction between statins and erythromycin/clarithromycin is significant and frequent, and in this case, the patient has experienced statin-induced myopathy due to clarithromycin.
Statins are drugs that inhibit the action of HMG-CoA reductase, which is the enzyme responsible for cholesterol synthesis in the liver. However, they can cause adverse effects such as myopathy, liver impairment, and an increased risk of intracerebral hemorrhage in patients with a history of stroke. Statins should not be taken during pregnancy or in combination with macrolides. NICE recommends statins for patients with established cardiovascular disease, a 10-year cardiovascular risk of 10% or higher, type 2 diabetes mellitus, or type 1 diabetes mellitus with certain criteria. It is recommended to take statins at night, especially simvastatin, which has a shorter half-life than other statins. NICE recommends atorvastatin 20 mg for primary prevention and atorvastatin 80 mg for secondary prevention.
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This question is part of the following fields:
- Musculoskeletal Health
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Question 29
Incorrect
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A 55-year-old man visited the dermatology clinic in the summer with a rash on his forearms, shins and face. Which medication is most commonly associated with this type of photosensitive rash?
Your Answer: Bendroflumethiazide
Correct Answer: Ezetimibe
Explanation:Adverse Effects of Cardiology Drugs
Photosensitivity is a frequently observed adverse effect of certain cardiology drugs, such as amiodarone and thiazide diuretics. This means that patients taking these medications may experience an increased sensitivity to sunlight, resulting in skin rashes or other skin reactions.
Similarly, angiotensin-converting enzyme (ACE) inhibitors and angiotensin 2 receptor blockers (A2RBs) are also known to cause rashes, some of which may be photosensitive. It is important for healthcare providers to be aware of these potential adverse effects and to advise patients to take appropriate precautions, such as wearing protective clothing and using sunscreen, when exposed to sunlight.
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This question is part of the following fields:
- Improving Quality, Safety And Prescribing
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Question 30
Incorrect
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A 75-year-old man presents with weight loss and is found to have a serum calcium concentration of 3.22 mmol/l (normal range 2.25-2.5 mmol/l). A skeletal survey is normal. A cancer with non-metastatic hypercalcaemia is suspected.
Which of the following substances is most likely to be secreted by the tumour in this case?Your Answer: Calcitriol (1,25-dihydroxycholecalciferol)
Correct Answer: Parathyroid hormone-related peptide (PTHrP)
Explanation:Understanding Hypercalcaemia in Cancer Patients: The Role of PTHrP
Hypercalcaemia is a common occurrence in cancer patients, affecting around 10-20% of cases. It is caused by increased bone resorption and calcium release from bone, which can be triggered by osteolytic metastases, tumour secretion of parathyroid hormone-related peptide (PTHrP), and tumour production of calcitriol. Among these mechanisms, PTHrP secretion is the most common cause of hypercalcaemia in patients with non-metastatic solid tumours, also known as humoral hypercalcaemia of malignancy. This condition should be suspected in patients with solid tumours and unexplained hypercalcaemia, as well as those with low serum PTH concentration. Diagnosis can be confirmed by measuring high serum PTHrP concentration. While hypercalcaemia is often associated with advanced cancer and poor prognosis, understanding its underlying mechanisms can help in developing effective treatment strategies.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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