A 72-year-old with pneumonia becomes acutely confused. Sodium 118 mmol/L, serum osmolality low, urine osmolality high. Euvolaemic clinically. Most lik...

Question

A 72-year-old with pneumonia becomes acutely confused. Sodium 118 mmol/L, serum osmolality low, urine osmolality high. Euvolaemic clinically. Most likely cause?

Accepted Answer

SIADH

Answer

Primary polydipsia

Answer

Addison's disease

Answer

Hyperglycaemia artefact

Answer

Renal salt wasting

mrcp part 1 MCQ (SBA): SIADH secondary to pneumonia

A 72-year-old with pneumonia becomes acutely confused. Sodium 118 mmol/L, serum osmolality low, urine osmolality high. Euvolaemic clinically. Most likely cause?