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Which lab tests should I get during pregnancy?
Pregnancy

Which lab tests should I get during pregnancy?

2 min readWeek 10
Key takeaways
2 min
  • Schedule a comprehensive prenatal panel during your first visit, including blood count, urinalysis, and blood typing tests.
  • Get tested for infections like hepatitis, HIV, and STDs early to prevent transmission to your baby through timely treatment.
  • Check your rubella immunity status, as this infection can be fatal to unborn babies despite being harmless to adults.
  • Monitor hemoglobin levels through blood tests to prevent anemia and ensure healthy pregnancy progression.
  • Test for asymptomatic bacteriuria in urine, as 15% of pregnancies develop this infection that can cause complications if untreated.

Essential pregnancy lab tests include complete blood count, urinalysis, blood typing, Rh factor testing, and screenings for rubella, hepatitis, HIV, and STDs. These tests help detect infections, prevent complications, and ensure both maternal and fetal health throughout pregnancy.

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During your first prenatal visit, you will leave your gynecologist’s office with a long list of tests, even if you are feeling perfectly fine. Many women consider ignoring both the tests and many of their prenatal appointments.

What tests do I have to get?

In most countries, doctors will have you do a prenatal panel of lab tests after your first visit that may include (but is not limited) to the following:

  • complete blood count

  • urinalysis

  • blood typing and Rh factor testing 

  • testing for rubella, tuberculosis (TB), hepatitis, HIV, and other STDs [1].

In addition, you may undergo tests to check for antibodies to various infections. But they vary from region to region.

Why test for hepatitis, HIV, and other STDs?

Early diagnosis and timely treatment can prevent the baby from getting infected.

Why is testing for rubella done?

Rubella (sometimes called German measles) is easily spread. If your blood test shows you are not immune, avoid anyone who has the disease while you are pregnant. For rubella, though harmless for adults, can be fatal for an unborn child [1].

What information does a blood analysis provide?

A prenatal blood test checks your hemoglobin levels, which help sustain pregnancy and prevent anemia. In addition, doctors look at your levels of leukocytes and platelets; the former warns of inflammatory processes in the body, while the latter may point to a blood clotting disorder [1]. 

Why do I need a urine test?

During your first visit, your urine will be checked for bacteria. Up to 15 percent of pregnancies develop against the background of asymptomatic bacteriuria — a urinary tract infection. If left untreated, it can lead to complications during pregnancy, delayed development of the baby, and premature birth [2].

Why do I need to know the baby’s blood type and Rh factor?

If the mother has a negative Rh factor, and the child has a positive one, then an Rh conflict is possible. If that is the case, your doctor will explain how the issue can be successfully treated. Doctors test for blood type as a preventative measure.

Frequently asked questions

Standard pregnancy lab tests include complete blood count, urinalysis, blood typing and Rh factor, and screenings for rubella, hepatitis, HIV, and STDs. These tests help identify potential risks and ensure proper treatment if needed.

STD testing during pregnancy is crucial because early diagnosis allows for timely treatment. This prevents transmission of infections like HIV or hepatitis from mother to baby during pregnancy or delivery.

If you have a negative Rh factor and your baby has positive, Rh incompatibility can occur. Your doctor will monitor this closely and provide treatment to prevent complications for future pregnancies.

Initial comprehensive lab work is done at your first prenatal visit. Additional tests may be required throughout pregnancy based on your health status and doctor's recommendations.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

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Medically reviewed content

Reviewed by healthcare professionals · Updated March 25, 2025

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