Gestational Diabetes

Question 1

Epidemiology of GDM

Answer 1

2nd most common disorder in pregnancy (after HTN)

Affects 4% of pregnancies

Question 2

Risk factors

Answer 2

1. BMI >30
2. 1st degree relative with diabetes
3. Previous GDM
4. Previous baby weighing 4.5kg or more
5. Family South Asian, black Caribbean and Middle Eastern (high diabetes prevalence

Question 3

Screening for GDM?

Answer 3

OGTT

Previous GDM -> OGTT asap after booking + 24-28wks

Any RFs -> OGTT at 24-28wks

Question 4

Diagnostic criteria for GDM?

Answer 4

Remember 5678

Fasting glucose >= 5.6mmol/L
2hr glucose >=7.8mmol/L

Question 5

How do you manage GDM?

Answer 5

Antenatal:

• Review with joint Diabetes/antenatal clinic within 1wk
• Clinic should be in contact with pt every 1-2wks throughout pregnancy