A woman at 28 weeks has a raised glucose on an oral glucose tolerance test and no earlier diabetes. What is the most likely diagnosis?

Answer and explanation

Correct answer: B. Gestational diabetes

  1. Step 1: The picture of raised glucose first found in pregnancy fits Gestational diabetes.
Answer
Gestational diabetes.
Why not the others: 'Pre-existing type 2 diabetes': it is present before pregnancy or diagnosed early with high glucose. 'Renal glycosuria': it gives glucose in the urine with a normal blood glucose. 'Type 1 diabetes': it presents with ketosis and weight loss.

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