Practice Flashcards
What OGTT, Polycose + HbA1c results would indicate GDM?
OGTT Fasting: >/=5.5 mmol/L
OGTT 2hr >/=9 mmol/L
Polycose 1 hr >11
HbA1c >=50 mmol/L
Routine diabetes screening for low risk pregnant woman?
HbA1c with booking bloods. If normal HbA1c & no GDM risk factors, polycose at 24-28wk. Discuss option of diagnostic OGTT test.
How often is a polycose falsely normal in women with GDM?
25%
Clinical indications for OGTT after 30 weeks?
Macrosomia or polyhydramnios. If after 32wks, consult
Risk factors for GDM? (11)
- PCOS
- Chronic hypertension
- Steriod or antipsychotic meds
- Family history of diabetes
- Glycosuria
- Macrosomia
- HbA1c 41-19
- Prev GDM/macrosomia/PET/perinatal loss/preterm birth
- Over 30
- Excessive weight gain in pregnancy
- Ethnicity
Meds for T1/T2DM for PET prevention?
5mg folic acid, Aspirin + calcium
What are the glucose targets
Fasting <5
1hr <7
2hr post prandial <6-6.5
(nb T1D may have modified targets)
When should metformin be avoided (4)?
If there is significant IUGR, ongoing maternal weight loss, PET or significant GI upset.
Maternal complications of GDM (6)?
- PET/Hypertensive disorders
- Birth trauma
- LSCS
- UTI
- Increased risk T2D
- Need for IOL
Are brands of insulin interchangeable?
No.
Care for T1D intrapartum
Glucose/Insulin infusion and follow protocol for testing BSLs and adjusting rate
Care for GDM (diet/metformin) intrapartum
Monitor glucose 2hrly
What is the follow up for GDM patients postpartum?
HbA1c @ 3months PP, then annually
Define hypoglycaemia:
CBG <4 (some say 3.5)
Symptoms of hypoglycaemia (12)
Sweating, dizziness, rapid HR, shaking, anxiety, weakness/fatigue, confusion, irritability, hunger, pins and needles in lips/tongue, impaired vision, headache.