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Question 1
Incorrect
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An 85-year-old man complains of increasing back pain and overall weakness. An X-ray of his back reveals multiple vertebral collapses and lytic lesions.
What is the most probable diagnosis?Your Answer: Bone metastases
Correct Answer: Multiple myeloma
Explanation:Understanding Multiple Myeloma: A Malignant Disease of Plasma Cells
Multiple myeloma is a malignant disease of plasma cells that commonly affects adults aged over 60 years. It is characterized by the production of paraproteinaemia in the blood, which can affect multiple organs including the blood, bone, kidneys, and immune system. The most common symptoms of multiple myeloma include unexplained bone pain, hypercalcaemia, weight loss, hyperviscosity symptoms, spinal cord compression, and fever.
On the other hand, osteoporosis is a condition characterized by low bone mass and deterioration of the structure of the bone tissue, resulting in bone fragility and susceptibility to fracture. Multiple vertebral collapses and lytic lesions are more sinister in nature and are commonly associated with multiple myeloma.
Osteosarcoma, bone metastases, and chronic myeloblastic leukaemia (CML) are not related to multiple myeloma. Osteosarcoma is characterized by cortical destruction and the presence of a soft-tissue mass, while bone metastases usually lead to destruction of the cortex on plain radiographs. Symptoms of CML include fatigue, night sweats, weight loss, abdominal fullness, and left upper quadrant pain.
In summary, understanding the symptoms and characteristics of multiple myeloma is crucial in diagnosing and treating this malignant disease of plasma cells.
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This question is part of the following fields:
- Haematology/Oncology
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Question 2
Incorrect
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A 35-year-old woman with a history of gallstones is scheduled for a laparoscopic cholecystectomy in two months. She is currently taking Microgynon 30 (combined oral contraceptive pill) and is concerned about the increased risk of blood clots. What advice should be given to the patient in this scenario?
Your Answer: She should stop Microgynon 7 days before the procedure
Correct Answer: She should stop Microgynon 28 days before the procedure
Explanation:Venous thromboembolism (VTE) is a serious condition that can lead to severe health complications and even death. However, it is preventable. The National Institute for Health and Care Excellence (NICE) has updated its guidelines for 2018 to provide recommendations for the assessment and management of patients at risk of VTE in hospital. All patients admitted to the hospital should be assessed individually to identify risk factors for VTE development and bleeding risk. The department of health’s VTE risk assessment tool is recommended for medical and surgical patients. Patients with certain risk factors, such as reduced mobility, surgery, cancer, and comorbidities, are at increased risk of developing VTE. After assessing a patient’s VTE risk, healthcare professionals should compare it to their risk of bleeding to decide whether VTE prophylaxis should be offered. If indicated, VTE prophylaxis should be started as soon as possible.
There are two types of VTE prophylaxis: mechanical and pharmacological. Mechanical prophylaxis includes anti-embolism stockings and intermittent pneumatic compression devices. Pharmacological prophylaxis includes fondaparinux sodium, low molecular weight heparin (LMWH), and unfractionated heparin (UFH). The choice of prophylaxis depends on the patient’s individual risk factors and bleeding risk.
In general, medical patients deemed at risk of VTE after individual assessment are started on pharmacological VTE prophylaxis, provided that the risk of VTE outweighs the risk of bleeding and there are no contraindications. Surgical patients at low risk of VTE are treated with anti-embolism stockings, while those at high risk are treated with a combination of stockings and pharmacological prophylaxis.
Patients undergoing certain surgical procedures, such as hip and knee replacements, are recommended to receive pharmacological VTE prophylaxis to reduce the risk of VTE developing post-surgery. For fragility fractures of the pelvis, hip, and proximal femur, LMWH or fondaparinux sodium is recommended for a month if the risk of VTE outweighs the risk of bleeding.
Healthcare professionals should advise patients to stop taking their combined oral contraceptive pill or hormone replacement therapy four weeks before surgery and mobilize them as soon as possible after surgery. Patients should also ensure they are hydrated. By following these guidelines, healthcare professionals can help prevent VTE and improve patient outcomes.
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This question is part of the following fields:
- Reproductive Medicine
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Question 3
Correct
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You assess a 24-year-old female patient who complains of bilateral nasal obstruction, nocturnal cough, and clear nasal discharge for the past three weeks. She reports experiencing similar symptoms around the same time last year and has a medical history of asthma. What is the probable diagnosis?
Your Answer: Allergic rhinitis
Explanation:Understanding Allergic Rhinitis
Allergic rhinitis is a condition that causes inflammation in the nose due to sensitivity to allergens such as dust mites, grass, tree, and weed pollens. It can be classified into seasonal, perennial, or occupational, depending on the timing and cause of symptoms. Seasonal rhinitis, which occurs due to pollens, is commonly known as hay fever. Symptoms of allergic rhinitis include sneezing, bilateral nasal obstruction, clear nasal discharge, post-nasal drip, and nasal pruritus.
The management of allergic rhinitis involves allergen avoidance and medication. For mild-to-moderate intermittent or mild persistent symptoms, oral or intranasal antihistamines may be prescribed. For moderate-to-severe persistent symptoms or if initial drug treatment is ineffective, intranasal corticosteroids may be recommended. In some cases, a short course of oral corticosteroids may be necessary to cover important life events. Topical nasal decongestants, such as oxymetazoline, may also be used for short periods, but prolonged use can lead to tachyphylaxis and rebound hypertrophy of the nasal mucosa (rhinitis medicamentosa) upon withdrawal.
In summary, allergic rhinitis is a common condition that can cause discomfort and affect daily activities. Proper management involves identifying and avoiding allergens, as well as using medication as prescribed by a healthcare professional.
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This question is part of the following fields:
- ENT
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Question 4
Incorrect
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A 27-year-old woman with a BMI of 34 kg/m² presents to your GP clinic with a small lump in her right breast. She is worried about the possibility of breast cancer, although she has noticed that the lump has decreased in size over the past two weeks. She denies any direct injury but mentions playing rugby recently. There is no family history of breast or gynaecological cancer. On examination, a small, firm, poorly mobile lump is found in the lower quadrant of the right breast.
What is the most probable diagnosis?Your Answer: Fibroadenoma
Correct Answer: Traumatic breast fat necrosis
Explanation:Traumatic breast fat necrosis may develop following a minor or unnoticed injury in women with a high body mass index, although it is crucial to investigate any lump to exclude breast cancer. Nipple discharge is a common symptom of mammary duct ectasia, while a tender lymph node in the axilla is likely to be palpable. Paget’s disease is characterized by an eczema-like appearance of the nipple, not a lump. Fibroadenoma, also known as a breast mouse, is not attached.
Understanding Fat Necrosis of the Breast
Fat necrosis of the breast is a condition that affects up to 40% of cases and is often caused by trauma. This condition can be mistaken for breast cancer due to its physical features, such as a mass that may initially increase in size. It is important to understand that fat necrosis is not cancerous and can be treated with proper care.
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This question is part of the following fields:
- Haematology/Oncology
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Question 5
Correct
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A 50-year-old man came to the clinic complaining of pain, redness, and blurring of vision in his left eye. Upon fundoscopy, a combination of white and red retinal lesions was observed, indicating chorioretinitis. What is the essential test that must be performed to determine the underlying cause of chorioretinitis in this patient?
Your Answer: HIV test
Explanation:Performing an HIV test is crucial in patients with AIDS, as it is the primary diagnostic tool for identifying the underlying cause. While options 1, 2, and 3 may be necessary as baseline investigations in most patients, they are not sufficient for diagnosing the specific condition in this case.
Causes of Chorioretinitis
Chorioretinitis is a medical condition that affects the retina and choroid, which are the layers of tissue at the back of the eye. There are several causes of chorioretinitis, including syphilis, cytomegalovirus, toxoplasmosis, sarcoidosis, and tuberculosis.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. It can cause chorioretinitis as part of its secondary stage. Cytomegalovirus is a common virus that can cause chorioretinitis in people with weakened immune systems, such as those with HIV/AIDS. Toxoplasmosis is a parasitic infection that can be contracted from contaminated food or water, and it can cause chorioretinitis in some cases.
Sarcoidosis is a condition that causes inflammation in various parts of the body, including the eyes. It can lead to chorioretinitis in some cases. Tuberculosis is a bacterial infection that can affect the lungs, but it can also spread to other parts of the body, including the eyes. It can cause chorioretinitis as a rare complication.
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This question is part of the following fields:
- Ophthalmology
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Question 6
Correct
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A 40-year-old male visits his GP complaining of pain in his foot and lower limb that worsens at night. He reports that the pain alleviates when he dangles his leg over the bed's edge. Upon further inquiry, he mentions experiencing 'pins and needles' in his fingers, which feel cold. The patient has no medical history but is a heavy smoker, consuming 25 cigarettes per day. What is the probable diagnosis based on the given information?
Your Answer: Buerger's disease
Explanation:Buerger’s disease (thromboangiitis obliterans) is the likely diagnosis for a young male smoker experiencing symptoms similar to limb ischaemia. This non-atherosclerotic vasculitis primarily affects medium-sized arteries and is most common in young male smokers. Symptoms include cold sensation or paraesthesia in the limbs or fingers, rest pain, and possible ulceration or gangrene. Granulomatosis with polyangiitis and peripheral vascular disease are important differentials to consider, but unlikely in this case. Sickle cell anaemia and vitamin B12 deficiency are also less likely explanations for the symptoms.
Understanding Buerger’s Disease
Buerger’s disease, also known as thromboangiitis obliterans, is a type of vasculitis that affects the small and medium-sized blood vessels. This condition is strongly linked to smoking and can cause a range of symptoms, including extremity ischemia, intermittent claudication, ischaemic ulcers, superficial thrombophlebitis, and Raynaud’s phenomenon.
Individuals with Buerger’s disease may experience reduced blood flow to their limbs, which can lead to pain, numbness, and tingling sensations. This can make it difficult to walk or perform other activities, and may even result in the development of ulcers or sores on the skin.
Superficial thrombophlebitis, or inflammation of the veins close to the surface of the skin, is another common symptom of Buerger’s disease. This can cause redness, swelling, and tenderness in the affected area.
Raynaud’s phenomenon, which is characterized by the narrowing of blood vessels in the fingers and toes, is also associated with Buerger’s disease. This can cause the affected areas to turn white or blue and feel cold and numb.
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This question is part of the following fields:
- Neurology
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Question 7
Incorrect
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A 72-year-old man visits his doctor complaining of fatigue, back pain, and frequent urination and thirst for the past 3 months. Upon examination, the doctor orders a urine protein electrophoresis and a serum-free light-chain assay, which confirm the diagnosis. What is the most probable result on the patient's blood film?
Your Answer: Schistocytes
Correct Answer: Rouleaux formation
Explanation:Rouleaux formation is a characteristic finding in multiple myeloma, which is a condition that presents with symptoms such as hypercalcaemia, anaemia, and back pain. Diagnosis of myeloma involves urine protein electrophoresis and serum-free light-chain assay. Rouleaux formation is observed as stacked RBCs on a blood film, resulting from an increase in acute-phase proteins that are positively charged and attract negatively charged RBCs. It is important to note that rouleaux formation is not exclusive to myeloma and can be seen in various inflammatory conditions. The erythrocyte sedimentation rate blood test measures this mechanism clinically. Heinz bodies, which are caused by oxidative stress and denaturation of haemoglobin, are not associated with myeloma but are seen in G6PD deficiency. Howell-Jolly bodies, which are present in hyposplenic or asplenic disorders, and an increased number of reticulocytes, which indicate increased RBC turnover, are also not characteristic of myeloma.
Understanding Multiple Myeloma: Features and Investigations
Multiple myeloma is a type of blood cancer that occurs due to genetic mutations in plasma cells. It is commonly diagnosed in individuals over the age of 70. The disease is characterized by the acronym CRABBI, which stands for Calcium, Renal, Anaemia, Bleeding, Bones, and Infection. Patients with multiple myeloma may experience hypercalcemia, renal damage, anaemia, bleeding, bone pain, and increased susceptibility to infections. Other symptoms may include amyloidosis, carpal tunnel syndrome, neuropathy, and hyperviscosity.
To diagnose multiple myeloma, doctors may perform a variety of tests, including blood tests, protein electrophoresis, bone marrow aspiration, and imaging studies. Blood tests may reveal anaemia, elevated levels of M protein in the blood or urine, and renal failure. Protein electrophoresis can detect raised concentrations of monoclonal IgA/IgG proteins in the serum or urine. Bone marrow aspiration confirms the diagnosis if the number of plasma cells is significantly raised. Imaging studies, such as whole-body MRI or X-rays, can detect osteolytic lesions or the characteristic rain-drop skull pattern.
The diagnostic criteria for multiple myeloma require one major and one minor criteria or three minor criteria in an individual who has signs or symptoms of the disease. Major criteria include plasmacytoma, 30% plasma cells in a bone marrow sample, and elevated levels of M protein in the blood or urine. Minor criteria include 10% to 30% plasma cells in a bone marrow sample, minor elevations in the level of M protein in the blood or urine, osteolytic lesions, and low levels of antibodies not produced by the cancer cells in the blood.
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This question is part of the following fields:
- Haematology/Oncology
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Question 8
Incorrect
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You are conducting a neurological examination on a thirty-five-year-old patient who presents with recent onset of blurred vision, speech disturbance, pronounced reflexes, and upward plantars upon attempting the Babinski reflex. The patient denies any history of headache and fundoscopy reveals normal findings. What is the probable diagnosis?
Your Answer: Amyotrophic lateral sclerosis
Correct Answer: Multiple sclerosis
Explanation:The presence of Babinski sign suggests the presence of a condition affecting the upper motor neurons. When the sole of the foot is stimulated with a blunt object, an atypical reflex is observed where the toes move upwards.
When ankle jerks are absent and extensor plantars are present, it is usually due to a lesion that affects both the upper and lower motor neurons. This can be caused by various conditions such as subacute combined degeneration of the cord, motor neuron disease, Friedreich’s ataxia, syringomyelia, taboparesis (syphilis), or a lesion in the conus medullaris. These conditions can lead to a loss of reflexes in the ankle and a specific type of reflex in the foot that indicates damage to both the upper and lower motor neurons. It is important to identify the underlying cause of these symptoms in order to provide appropriate treatment and management.
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This question is part of the following fields:
- Neurology
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Question 9
Correct
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A 62-year-old woman presents to the General Practitioner. She has a past medical history of hypertension, diabetes mellitus type II, peripheral vascular disease and ischaemic heart disease. The patient had an episode of retinal artery occlusion (RAO) and had to go to the Eye Hospital as an emergency.
After many investigations, the Ophthalmologist stated that the cause of her RAO is atherosclerosis of her central retinal artery (CRA). The patient is worried about her eyesight becoming worse and asks about long-term management plans for RAO.
Which of the following is considered part of the long-term management plan for RAO?
Select the SINGLE most appropriate management from the list below.
Your Answer: Prophylaxis with an antiplatelet agent
Explanation:Retinal artery occlusion is a condition that increases the risk of ischemic end-organ damage, such as stroke. Long-term management involves identifying and addressing underlying causes, reducing risk factors for atherosclerosis, and considering carotid endarterectomy if necessary. Ophthalmic follow-up and referral to low-vision-aid clinics may also be necessary. Acute treatment options include ocular massage, intra-arterial fibrinolysis, and lowering intraocular pressure with anterior chamber paracentesis. Atherosclerosis and embolism are the main causes of RAO, and prophylaxis with an antiplatelet or anticoagulation agent may be necessary for long-term management. However, even with early treatment, the prognosis is generally poor, and only about one-third of patients show any improvement.
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This question is part of the following fields:
- Ophthalmology
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Question 10
Incorrect
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A 32-year-old woman reports experiencing discomfort in the plantar midfoot area between the third and fourth toes while wearing high heels.
What is the most probable reason for her symptoms?Your Answer: Plantar fasciitis
Correct Answer: Morton’s neuroma
Explanation:Common Foot Conditions and Their Symptoms
Morton’s Neuroma: This condition is characterized by perineural fibrosis and common digital nerve degeneration, resulting in neuropathic pain in the forefoot and interdigital space. The third web space is most commonly affected, and pain is aggravated by narrow, tight, high-heeled shoes. Treatment involves local steroid injections and footwear advice.
Claw Toe: In this condition, there is MTP dorsiflexion with PIP and DIP flexion affecting any of the second to fifth toes. Patients often report pain at the PIP joint due to pressure from a shoe on the toe.
Achilles Tendonitis: This results in activity-related pain and swelling of the Achilles tendon, felt at the lower calf. The toes are unaffected. Management includes rest, NSAIDs, heel padding, physiotherapy, and steroid injections.
Hammer Toe: This is a deformity of the second, third, or fourth toe, characterized by progressive PIP flexion deformity and compensatory hyperextension of the MTP and DIP joints. The PIP joint becomes prominent dorsally, causing pain when rubbing against the shoe.
Plantar Fasciitis: This is a pain in the inferior heel at the attachment of the medial band of the plantar fascia to the medial calcaneal tubercle. It is a chronic inflammatory process and an overuse injury, with pain worst in the morning. Treatment involves shoes with arch support, soft heels and heel padding, regular stretching exercises, NSAIDs, and local steroid injections.
Understanding Common Foot Conditions and Their Symptoms
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This question is part of the following fields:
- Musculoskeletal
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