523 free practice questions shared by students. Answer them right here — no account needed.
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A 74-year-old man with type 2 diabetes presents with several days of lethargy and increasing confusion. His blood glucose concentration is 42 mmol/L, calculated…
A 31-year-old woman with type 1 diabetes is being treated for diabetic ketoacidosis with intravenous insulin and 0.9% sodium chloride. Four hours later, her blo…
A 67-year-old woman with type 1 diabetes is admitted with community-acquired pneumonia and is not eating. She normally injects insulin glargine 24 units at nigh…
A 24-year-old man with type 1 diabetes presents with vomiting and abdominal pain. His blood glucose concentration is 28 mmol/L, blood ketones are 6.4 mmol/L and…
A 74-year-old woman with severe chronic obstructive pulmonary disease presents with increasing dyspnoea and drowsiness during a respiratory infection. On room a…
A 29-year-old man with asthma is treated for an acute exacerbation with repeated nebulised salbutamol, ipratropium and corticosteroids. Initially he was agitate…
A 68-year-old man with severe chronic obstructive pulmonary disease presents with increasing breathlessness and purulent sputum. He has received controlled oxyg…
A 34-year-old woman with asthma remains breathless in the emergency department after three nebulised doses of salbutamol and ipratropium and intravenous hydroco…
A 29-year-old man presents two days after running out of prescribed oxycodone, which he had been taking in increasing amounts for a year. He is yawning, restles…
A 52-year-old man with alcohol dependence is brought to the emergency department after being found confused at home. He has had several days of vomiting and is…
A 67-year-old man with alcohol dependence has mild withdrawal 10 hours after his last drink, with anxiety, tremor and nausea but no hallucinations or seizure. H…
A 34-year-old woman presents with anxiety, poor sleep, nausea and a sense that people are watching her. She stopped taking alprazolam 72 hours ago after using 6…
A 46-year-old man with longstanding alcohol dependence has eaten little during two weeks of vomiting. He is inattentive, walks with a broad-based gait and repea…
A 63-year-old man with metastatic squamous cell carcinoma has persistent thirst, vomiting and confusion. After intravenous saline, his serum calcium concentrati…
A 72-year-old man with diabetic kidney disease takes perindopril and spironolactone. He has a serum potassium concentration of 6.2 mmol/L (3.5–5.2), chloride 11…
A 29-year-old man presents after completing an unusually strenuous cross-country event with severe thigh pain and dark urine. His creatinine concentration is 28…
A 54-year-old woman is treated for symptomatic hyponatraemia that has probably been present for several days. Her initial serum sodium concentration was 108 mmo…
A 68-year-old man with chronic kidney disease is admitted with pneumonia and has received intravenous fluids, calcium gluconate and insulin with glucose for a s…
A 79-year-old man has fallen three times in two months, usually when walking to the toilet at night. He has slowed reactions and feels unsteady for several hour…
An 82-year-old woman becomes confused and unsteady over three days while being treated for depression and hypertension. She is euvolaemic, her serum sodium is 1…