mrcp part 1 MCQ (SBA): Central diabetes insipidus

Instant feedback + full explanation. One question, done properly.

HardEndocrinologyCentral diabetes insipidusmrcp part 1ukmla

A 62-year-old man with polyuria, polydipsia and plasma osmolality high; urine osmolality low. Water deprivation test shows failure to concentrate, improved after desmopressin. Diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.