MSFinals-5303
A 25-year-old man presents to the Emergency Department in a distressed state. He says he hears voices telling him that he is worthless and that the people talking to him know what he is doing as they are listening to his thoughts via the television and radio. His friends who attend with him tell you that he has become withdrawn over the past few months and has been missing lectures. There is a history of cannabis use but nil else of note. When he talks to you, he appears to have constructed a number of new words to describe the machines used to listen to him.
Investigations:
Investigation Result Normal value
Haemoglobin 139 g/l 135–175 g/l
White cell count (WCC) 6.1 × 109/l 4–11 × 109/l
Platelets 294 × 109/l 150–400 × 109/l
Sodium (Na+) 140 mmol/l 135–145 mmol/l
Potassium (K+) 4.3 mmol/l 3.5–5.0 mmol/l
Creatinine 100 μmol/l 50–120 µmol/l
Alanine aminotransferase (ALT) 34 IU/l 5–30 IU/l
Bilirubin 16 μmol/l 2–17 µmol/l
Which of the following is the most likely diagnosis?