Triple test screening for down syndome

This test measures 3 hormones:

• AFP (alpha fetal protein)
• HCG
• Estriol

This helps to screen for down syndrome and AFP helps to screen for neural tube defects.
The mother undergoes a blood test between 14 weeks to 20 weeks. The blood test results generally takes a few days to be available.
The detection rate for down syndrome is about 65%