Question

A 68-year-old with new-onset confusion and productive cough. CXR shows right lower lobe consolidation; sodium 122 mmol/L. Likely cause of hyponatraemia?

Accepted Answer

SIADH secondary to pneumonia

Answer

Primary polydipsia

Answer

Diuretic-induced hyponatraemia

Answer

Adrenal insufficiency

Answer

Hypothyroidism

Practice question

A 68-year-old with new-onset confusion and productive cough. CXR shows right lower lobe consolidation; sodium 122 mmol/L. Likely cause of hyponatraemia?