-
Combined test - when
- USS, beta-hCG and PAPP-A
- <14 weeks, also with USS - nuchal translucency
-
Triple test - chromosome anomalies
- If >14; missed prev, NT
- AFP, hCG, oestriol
-
Booking visit Ix: 11 - 13w
- - USS:
- + CRL (crown-rump length)
- + multiple pregnancy
- + structural abnormalities with nuchal translucency measurement
- - Blood tests - combined test
- + chromosomal abnormalities
-
Booking visit Ix: 16w
- - Results of screening tests for chrom abn and booking blood tests
- - If missed, 'triple test'
-
Booking visit Ix: 18-21w
- - USS - anomaly scan
- - repeat scan at 32w if low placenta
-
Booking visit Ix: 28w
- - Measure fundal height
- - FBC & antibody
- - Glucose tolerance
- - Anti-D
-
Booking visit Ix: 34; then 36,38,40w
- - 34: Fundal height, FBC if low Hb
- - 36,38,40:
- + fundal height
- + fetal lie and presentation - referral for ECV (external cephalic version)
- + not pelvic exam, unless induction/obstruction suspect
-
Booking visit Ix: 41w
- - Fundal height, fetal lie and presentation
- - membrane sweeping offered, as induction of labour at 42w
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