OGT Gestational Diabetes and Pregnancy Testing 2

Question 1

Under the IADPSG one-step criteria, which 2-hour glucose value on a 75 g OGTT diagnoses GDM during pregnancy?

Accepted Answer

≥153 mg/dL

Answer

The IADPSG one-step criteria set the 2-hour threshold at ≥153 mg/dL on the 75 g OGTT for diagnosing gestational diabetes.

Question 2

What is the 1-hour glucose threshold used in the IADPSG one-step 75 g OGTT for GDM diagnosis?

Accepted Answer

≥180 mg/dL

Answer

The IADPSG criteria specify a 1-hour threshold of ≥180 mg/dL on the 75 g OGTT as one of three diagnostic points for GDM.

Question 3

If a pregnant woman is diagnosed with GDM, which initial management step is most commonly recommended first?

Accepted Answer

Medical nutrition therapy and blood glucose monitoring

Answer

Medical nutrition therapy combined with blood glucose self-monitoring is the first-line management for most women with GDM.

Question 4

Untreated gestational diabetes increases the risk of which neonatal complication?

Accepted Answer

Macrosomia and birth trauma

Answer

GDM is strongly associated with fetal macrosomia (large-for-gestational-age babies), which increases the risk of shoulder dystocia and birth trauma.

Question 5

Postpartum testing after GDM should include an OGTT at which interval?

Accepted Answer

4–12 weeks postpartum

Answer

ADA recommends a 75 g 2-hour OGTT at 4–12 weeks postpartum to reassess glucose metabolism after GDM.

OGT - Oral Glucose Tolerance Practice Test