ANZCA question of the week.
Week of 26 October 2026. Have a go, then see the reasoning behind every option.
A 55-year-old man is ventilated after a laparotomy for a ruptured abdominal aortic aneurysm with massive transfusion. His abdomen is tense, peak airway pressures are rising and his urine output has fallen. You plan to measure intra-abdominal pressure through his urinary catheter. Which technique gives a valid measurement according to the World Society of the Abdominal Compartment Syndrome?
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ANZCA-style questions, marked with a reason for every option. Free account, no card.
Earlier weeks
A 70 kg man in the emergency department needs a closed reduction of a displaced distal radius fracture. You plan an intravenous regional anaesthetic (Bier block) with a double-cuff tourniquet. Which local anaesthetic and dose is most appropriate?
Four days after an accidental dural puncture during insertion of a labour epidural, a 32-year-old woman's headache, which at first was present only when upright and eased by lying flat, has become constant whatever her posture. She is now drowsy and has vomited twice. Temperature is 36.9 °C, blood pressure 118/72 mmHg and there is no proteinuria. What is the most appropriate next step?
A 74-year-old man in cardiogenic shock after a large anterior myocardial infarction is started on a standard lidocaine infusion for recurrent ventricular tachycardia. Twelve hours later he is confused and twitching. Which property of lidocaine best explains the toxicity?
A 30-year-old man is intubated after suxamethonium 100 mg. Five minutes later the tube is displaced, and a second dose of 100 mg is given for reintubation; SpO2 remains 99% throughout. Within a minute of the second dose his heart rate falls from 85 to 35 beats per minute with a junctional rhythm. Which mechanism best explains this?
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