Amniocentesis is a test of amniotic fluid. This fluid is around your baby in your uterus. The doctor will remove a small sample of the fluid with a needle. This test checks your baby for birth defects.

There are some risks with this test.

• A leak or infection of the amniotic fluid
• The needle touching the baby
• Early delivery
• Miscarriage

Arrive on time for your test. Plan on this test taking about 1 hour.

During the Test

• You will wear a hospital gown.
• You lie on your back with your stomach uncovered.
• Your stomach is washed.
• Your doctor uses ultrasound to see your baby and find safe pockets of amniotic fluid. An ultrasound is a picture of your baby using sound waves.
• Your doctor may numb the skin where the needle goes in. You may feel a sting.
• When the needle enters the uterus, you may feel cramping.
• The doctor takes out a small sample of the fluid and removes the needle.

The needle is in for less than 1 minute.

• A monitor is placed on your stomach for 15-30 minutes to check your baby’s heartbeat.
• Your doctor will get your test results in about 2 weeks. Your doctor will share the results with you.

After the Test

• Rest at home today.
• Drink plenty of liquids.
• If you have cramping, lie on your left side.

Call your doctor right away if you have:

• Severe cramping
• Fluid leaking from the vagina
• Bleeding from the vagina
• Fever
• Your baby is less active
• Other concerns

Talk to your doctor or nurse if you have any questions or concerns.

Amniocentèse