Scans In Pregnancy

Question 1

8-12 weeks?

Answer 1

Booking visit scan
For FBC / rhesus status
hepatitis B, syphilis
HIV test offered to all women
Urine culture for asymptomatic bactureia

Question 2

10-13+6 weeks

Answer 2

Scan to confirm dates
Exclude multiple pregnancy

Question 3

11-13+6 weeks

Answer 3

Down syndrome checking
Nuchal scan

Question 4

When is the anomaly scan ?

Answer 4

18 - 20+6 weeks

Question 5

Routine care: BP, urine dipstick, symphysis-fundal height (SFH) if primipara

Answer 5

25 weeks

Question 6

When is the second screen for anemia and atypical red cells / routine care BP , SFH, urine dipstick

Answer 6

28 weeks

Question 7

When is the first dose for anti-d prophylaxis given?

Answer 7

28 weeks

Question 8

When is the second dose of anti-d proboscis given to rhesus negative ?

Answer 8

34 weeks

Question 9

When is external ceramic version offered?

Answer 9

36

Question 10

If patient requests the scan later for nuchal screen?

Answer 10

Combined test can be done in 11-13+6

If the patient requests the screening later in the pregnancy, either the triple or quadruple test should be offered between 15 and 20 weeks

Question 11

Down syndrome antenatal testing ?

Answer 11

nuchal translucency measurement + serum B-HCG + pregnancy-associated plasma protein A (PAPP-A)

Down’s syndrome is suggested by ↑ HCG, ↓ PAPP-A, thickened nuchal translucency

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if women book later in pregnancy the quadruple test should be offered between 15 - 20 weeks
quadruple test: alpha-fetoprotein (low) unconjugated oestriol (low), human chorionic gonadotrophin (high)and inhibin A (high)