Antenatal

Question 1

Quadruple test – maternal blood screening – looking at 4 specific substances, what are the substances?

Answer 1

1. alpha feto-protein (AFP)
2. human chorionic gonadotropin (hCG)
3. Estriol
4. Inhibin-A

Question 2

When is quadruple test done?

Answer 2

14+2 wk to 20+0 wk - usually 16 wk

Question 3

What are included in the combined test?

Answer 3

USS - nuchal translucency (11+2 wk to 14+1 wk)
Serum screen: (10 wk to 14+1wk
beta-hCG
pregnancy associated plasma protein A (PAPP-A)