Clinical case review
Review the complete Medicine case, its five progressive clues, the diagnosis, and the clinical reasoning behind the answer.
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Play today's Medicine caseThese are the case findings in their original reveal order, moving from the broader presentation to the most discriminating evidence.
Clue 1
A 52-year-old taxi driver arrives in the emergency department, driven there by a colleague from the rank who told him to stop working and get seen. For two days he has had a headache that has not lifted and vision that keeps blurring, and since this morning he has been nauseated. He is clear that he would not have come on his own — he has a shift to finish and does not think of himself as someone who goes to hospitals.
Clue 2
He used to take amlodipine and ramipril. Three months ago he changed employer, the repeat prescription went with the old arrangement, and he has taken nothing since — he felt fine, so it did not seem urgent. Asked directly about the things that would worry a doctor most, he has none of them: no chest pain, no tearing pain in the back, no breathlessness lying flat, no weakness down either side, no trouble finding words.
Clue 3
His blood pressure at triage is 226/134. The reading is repeated, on the assumption that something has gone wrong with the cuff or the patient has just climbed the stairs — then repeated again in the other arm, and again after twenty minutes lying quietly in a cubicle. It does not move: 226/134 on the right, 222/130 on the left, with no meaningful difference between the sides. Pulse 92, respiratory rate 18, afebrile.
Clue 4
Because of the blurred vision the fundi are examined, and they are not normal. Both retinas carry flame-shaped haemorrhages and exudates, and both optic discs are swollen. The blood tests arrive at the same time and tell a matching story about a different organ: creatinine 178, against a value of 88 recorded in his notes fourteen months ago. Bicarbonate is 21. The urine has 2+ protein and 1+ blood, with no casts, no nitrites and no leucocyte esterase.
Clue 5
The electrocardiogram shows sinus rhythm with tall voltages meeting criteria for left ventricular hypertrophy and a lateral strain pattern — a ventricle that has been pushing against this for a long time — but no ST-segment elevation or depression and no acute ischaemic change. The head scan, done because of the headache and the visual symptoms, is clean: no haemorrhage, no infarct, no mass lesion.
Diagnosis
The number is the least interesting part of this case. A blood pressure of 226/134 is alarming, but the levels that constitute an emergency are not universally established and are frankly arbitrary; what matters is the rate of rise, and people with long-standing hypertension can tolerate very high pressures without coming to harm. He is a good illustration — he was well enough to be driving a taxi. What converts this from a high reading into an emergency is evidence that organs are being damaged right now, and the case supplies it in two independent places. The fundi show bilateral flame haemorrhages, exudates and swollen optic discs, which is acute hypertensive damage visible directly and explains the blurred vision. The kidneys show a creatinine of 178 against a documented baseline of 88 fourteen months ago, with 2+ protein and 1+ blood on the urine. That baseline is doing quiet but essential work: without it, 178 is uninterpretable and could be chronic disease of unknown duration. The story behind it is ordinary and common — he was treated, he changed employer, the repeat prescription went with the old arrangement, and three months without tablets was enough. The remaining orders are there to determine which emergency this is, because that decides how fast and with what the pressure is brought down. There is no chest pain, no tearing back pain and no inter-arm difference, which argues against dissection; the electrocardiogram shows left ventricular hypertrophy with lateral strain but no acute ischaemic change, so this is chronic remodelling rather than a coronary event; and the head scan shows no haemorrhage, no infarct and no mass lesion, which matters because the safe rate of reduction differs sharply when there is blood or acute infarction inside the skull. With organ damage established, treatment is rapid intravenous therapy with controlled reduction, rather than the oral agents and close monitoring that would suffice for the same pressures without acute injury.
The explanation and decisive case findings were checked against the source below.
Open the clinical referenceFor education and entertainment only. This fictional case is not medical advice and does not replace supervised clinical training, diagnosis, or treatment.
