A nonstress test (NST) allows your doctor to monitor your baby's heartbeat while it kicks and stretches. If the heartbeat increases normally during the test, it means that your baby is probably getting enough oxygen and nutrients from your blood.

Preparing for this procedure

Your doctor may provide you with instructions prior to your procedure.

How this procedure is performed

What to Expect During Your Test

• At your doctor’s office or hospital, you lie down on your back or side in bed, or you recline in a chair.

• A fetal heart monitor (a wide strap or cloth band holding an ultrasound device) is placed around your abdomen in the area where the baby’s heartbeat is the loudest.

• Another device is placed to measure contractions of your uterus and your baby’s movements.

A record of the movement of your baby is compared with your baby's heart rate. The length of the test depends on how active your baby is.

CPG Physicians who perform this procedure

Adib Najib Khouzami, MD, FACOG

Albert K. Mall, MD

Anne Sterlin, MD, FACOG

Delbert L. Yoder, MD, FACOG