A woman at nine weeks has persistent vomiting with weight loss and ketonuria. What is the most likely diagnosis?

Answer and explanation

Correct answer: D. Hyperemesis gravidarum

  1. Step 1: The picture of persistent vomiting with weight loss and ketonuria fits Hyperemesis gravidarum.
Answer
Hyperemesis gravidarum.
Why not the others: 'Gastroenteritis': it gives diarrhoea and fever and does not persist. 'Molar pregnancy': it has a very high hCG and a uterus larger than dates. 'Urinary tract infection': it gives dysuria and fever.

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