Question

How do you diagnose gestational diabetes mellitus (GDM)?

A) By measuring fasting blood glucose only.
B) By performing an oral glucose tolerance test (OGTT).
C) By assessing HbA1c levels.
D) By analyzing random blood glucose levels.
E) By checking urine for glucose.

Answer 1

Gestational diabetes mellitus (GDM) is diagnosed by performing an oral glucose tolerance test (OGTT). Option B is the answer.

Step-by-step explanation:

The accurate diagnosis of gestational diabetes mellitus (GDM) involves the administration of an oral glucose tolerance test (OGTT). This test measures blood glucose levels after fasting and at specific intervals after consuming a glucose solution. The results help identify any impaired glucose tolerance during pregnancy. Option A, measuring fasting blood glucose only, may not provide a comprehensive assessment of glucose metabolism during pregnancy. HbA1c levels (Option C) reflect average blood glucose levels over time but are not the primary method for diagnosing GDM. Random blood glucose levels (Option D) lack the specificity of timed measurements. Checking urine for glucose (Option E) is not the preferred method for diagnosing GDM.

Option B is the answer.