Pregnancy Lab Work


This is a complete blood count which checks for anemia as well as blood clotting factors such as platelets and checks the white blood cell count which might indicate some type of infection.

Blood type and Rh

It is important to know during pregnancy what the mother’s blood type and Rh factor is. We understand that if a woman is Rh negative and her husband is Rh positive, then the mother will need other special tests during the pregnancy.

Rubella screen

This test checks to see if a woman has had or has been vaccinated against the German measles (3day measles). If a woman is not immune to the measles then it is important she be vaccinated after the birth of her infant.


This is a state required test for syphilis. This is done at the time of the first prenatal visit, as well as, during the last third of pregnancy.

Rh antibody

If the mother is Rh negative then during the sixth or seventh month her blood will again be tested to see if there is an antibody being produced that might harm the baby’s blood. If there is none, then she will be given a shot to prevent the antibody from being formed.


A small percentage of women will have a low grade urinary tract infection. These woman are at increased risk, although slight, of having premature labor or kidney infection requiring IV antibiotics during the pregnancy.

Glucose screen

The glucose screen is used to check for diabetes. Although diabetes is a low risk in the general pregnant patient population, diabetes can occur and it easy to screen for. Diabetes is a problem if it show up during pregnancy and goes undetected.

Hepatitis B

The hepatitis B screening check for the presence of prior infection in the mother with hepatitis, a liver disease. There are certain percentage of woman that carry the hepatitis virus in their system. This percentage is very low probably less than .2%, but in those women if the disease goes undetected, the continuing damage to their liver can be significant. The fetus can also have substantial problems after birth because of the severe liver infection and danger of transmitting the infection to hospital personnel through contamination with soiled of bloody materials is also quite high.


A type pf sexually transmitted disease which generally has few, if any, symptoms in the female. Infection with chlamydia can result in sterility in the female if gone untreated. It can result in infection in the newborn with sever eye infections as well. There is also substantial data to suggest that women who have chlamydial infection have a higher risk of have pregnancy loss with ruptured membranes and labor occurring before the time the fetus is viable, or having premature rupture of membranes and subsequent premature delivery. This test is done during your first OB visit in the office.


Definition same as above.


Routine blood tests are required in the third trimester of pregnancy. Listed below are the tests:


A state required test

Antibody Screen

To rule out any problems between the baby’s blood and the mother’s blood


To check for anemia

Glucose screen

Checks for diabetes. You will need to go to the lab fasting. When you arrive at the lab you will be given a sugar drink. Blood will be drawn one hour later. The lab may want you to wait in their waiting area for that hour.

You may call the office for results 3 to 4 days after your labs are drawn, or you may wait until your next visit to the office.

If there is a problem with any tests you will be notified by phone.