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Flashcards in Antenatal screening Deck (15):
1

What blood tests are taken at 8 - 12 weeks gestation? (This will usually be the booking visit)

Haemaglobin
Blood type
Rhesus status
Blood borne viruses (rubella, syphillis, HIV, Hepatitis)

2

What examinations are done at the booking visit?

height
weight
blood pressure
CVS exam
Abdo exam

3

At what gestation is the nuchal thickness test done?

11 - 13+6 weeks

4

What gestation is a blood sample looking for HCG and AFP in the screening of down syndrome done?

15 - 20 weeks

5

You do a blood test for HCG and AFP at 16 weeks. What results would be suggestive of down syndrome?

High HCG and low AFP

6

You do a blood test for HCG and AFP at 16 weeks. The results show a high HCG and a low AFP. What might this signify?

Downs syndrome

7

You do a blood test for HCG and AFP at 16 weeks. Where is AFP made?

Foetal liver

8

You do a blood test for HCG and AFP at 16 weeks. The results show a high AFP and a low HCG What might this signify?

Neural tube defects such as spina bifida

9

What level of risk for down syndrome would require further investigation?

1: 250

10

At what gestation can amniocentesis be performed?

After 15 weeks

11

What is the miscarriage rate in amniocentesis?

1%

12

At what gestation can chorionic villus sampling be performed?

After 12 weeks

13

What is the miscarriage rate in chorionic villus sampling?

2%

14

What tests are part of the downs syndrome screening done at 11 - 14 weeks?

Nuchal thickness
AFP
HCG
Estriol
Inhibin

15

What tests are part of the downs syndrome screening done at 15 - 21 weeks?

AFP
HCG
Estriol
Inhibin