A 74-year-old woman presents with sudden passage of a large volume of dark red blood per rectum. After two litres of intravenous crystalloid her blood pressure…

A 41-year-old man undergoes urgent debridement for a necrotising infection of the calf. Initial broad-spectrum treatment has been given, and deep tissue culture…

A 63-year-old man is admitted with fever, hypotension and rapidly progressive cellulitis of the forearm. He had been licked on an excoriated hand by his daughte…

A 68-year-old man taking gliclazide modified release for type 2 diabetes is found drowsy with a blood glucose concentration of 2.1 mmol/L. He improves after int…

A 29-year-old man is brought in shortly after his partner administered naloxone for suspected heroin overdose. He is yawning repeatedly, has abdominal cramps, d…