Amniocentesis

Should you have amniocentesis?

If your baby has a higher-than-normal chance of birth defects or other problems, you may want to have this test. These risk factors can increase chances of your baby having health problems:

• You’re 35 or older.

• There’s a history of inherited (genetic) problems in your family.

• Other tests have shown that the baby may have health problems.

How is amniocentesis done?

• First, the baby is located with ultrasound (sound waves that make an image on a screen).

• A thin needle is then put into your belly. The healthcare provider keeps the needle from touching the baby by watching the screen.

• The needle is used to remove a small amount of fluid from your uterus. Your body will make more fluid to replace what was taken.

• You can go home right after the test. But you may need to take it easy for a day or so.

  

What are the possible risks?

This test is considered safe. But there are some possible risks. These include:

• Cramping, spotting, or leaking amniotic fluid

• Infection in the uterus

• Pregnancy loss (miscarriage)—this is rare, and occurs in about 1 in 200 to 1 in 400 cases

• The needle coming into contact with the baby—this is rare

When to call your healthcare provider

Call your healthcare provider right away if you have:

• Severe pain or cramping

• Vaginal bleeding (spotting)

• Fever or chills

• Fluid leaking from your vagina

Getting test results

You’ll get your test results in 2 weeks. Most results are normal. Even if yours aren’t, it doesn’t always mean there’s a problem. But this will depend on what your healthcare provider is looking for with amniocentesis. You and your provider can talk about other tests or special care you may want.