A nonstress test is usually done in your health care provider's office.
Before the procedure
You'll have your blood pressure taken before the nonstress test begins.
During the procedure
During the nonstress test, you'll lie on a reclining chair. You'll have your blood pressure taken at regular intervals during the test.
Your health care provider or a member of your health care team will place two belts with monitors attached to them across your abdomen. One belt will record your baby's heart rate, and the other will record any uterine contractions you might have. You'll be asked to note when your baby moves. Your baby's movements will be noted on the fetal heart record. Your health care provider will look to see if your baby's heart beats faster when he or she moves.
Typically, a nonstress test lasts 20 minutes. However, if your baby is inactive or asleep, you might need to extend the test for another 20 minutes — with the expectation that your baby will become active — to ensure accurate results. Your health care provider might try to stimulate the baby manually or by placing a device on the maternal abdomen that makes a noise.
After the procedure
After the nonstress test is complete, your health care provider will likely discuss the results with you right away.