Hamptons OB/GYN | 2nd Trimester
Southampton 631-283-0918  Riverhead 631-727-3422  Hampton Bays 631-723-2225  Westhampton Beach 631-283-0918
2nd Trimester
Early in the second trimester (16-18 weeks) maternal serum screening can be performed. This blood test is used as a screen for open neural tube defects like Spina Bifida. This test includes Alpha-fetoprotein (AFP), and is optional.

Mid-pregnancy (18-20 weeks), an ultrasound or sonogram is usually performed to evaluate the baby's anatomy and to screen for birth defects.