Routine blood and urine checks are common throughout pregnancy, and most moms-to-be also have at least one ultrasound. Sometimes, your doctor might suggest additional testing.
what |
when |
why |
how |
|---|---|---|---|
| Chorionic villus sampling (CVS) | First trimester | To check for chromosomal or genetic disorders, or to determine paternity | A sample of cells is taken from the placenta using a needle. |
| Cordocentesis (Percutaneous Umbilical Cord Blood Sampling, or PUBS) | After 17 weeks of pregnancy | To diagnose chromosome abnormalities and blood disorders | Advanced-imaging ultrasound is used to locate the point where the umbilical cord enters the placenta, and a small needle is used to withdraw a sample of cord blood. |
| Amniocentesis | Second trimester | To identify certain birth defects, neural tube defects, and genetic disorders | Done under ultrasound, a small needle is used to remove a sample of fluid from the amniotic sac. |
| Maternal Serum Alpha-Fetoprotein Screening (MSAFP) | Second trimester | Screening test to determine if further testing is needed to check for fetal birth defects | Blood is drawn from a vein. |
| Biophysical Profile | After week 32 of gestation | Conducted when there is a concern about fetal health or in certain high-risk pregnancies | Non-invasive test that measures contractions and fetal heart rate. Done in combination with an ultrasound. |
Remember that just because your physician schedules these tests, it doesn't mean your baby actually has a health problem.
Sources: womenshealth.gov; americanpregancy.org
Nita Crighton is a registered nurse from Harding Township.
