What tests are done in the first trimester of pregnancy?

Complete blood count, blood type and Rh factor, serologies (HIV, hepatitis B, syphilis, rubella, toxoplasmosis), fasting glucose, urinalysis, and combined first-trimester screening.

What is first-trimester screening?

It is a combination of blood tests (PAPP-A and free beta-hCG) with an ultrasound to measure fetal nuchal translucency. It evaluates the risk of Down syndrome and other chromosomal abnormalities.

Are prenatal tests mandatory?

They are not mandatory but are highly recommended. They allow early detection of conditions that can affect the health of both mother and baby, enabling timely interventions when needed.

Prenatal

Prenatal Screening

Prenatal screening includes a set of blood tests performed during pregnancy to evaluate maternal health and detect potential fetal abnormalities. It includes blood type tests, complete blood count, glucose, infectious disease serologies, and first- and second-trimester biochemical markers.

Preparation

Preparation varies depending on the specific test. Fasting is required for the glucose test. Consult your obstetrician for specific instructions for each trimester.

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Frequently Asked Questions

Other Guides

Complete Blood Count (CBC)

The complete blood count evaluates the three main types of blood cells: red blood cells, white blood cells, and platelets. It helps detect anemia, infections, clotting disorders, and hematological diseases. It is one of the most commonly ordered laboratory tests in clinical practice.

Basic Metabolic Panel (BMP)

The basic metabolic panel measures glucose, calcium, electrolyte levels, and kidney function in the blood. It provides essential information about metabolism, fluid balance, and kidney health. It is fundamental for evaluating overall health status and guiding treatment of chronic diseases.

Comprehensive Metabolic Panel (CMP)

The comprehensive metabolic panel is an extension of the basic panel that also includes liver function tests and blood proteins. It evaluates liver health, kidney function, glucose metabolism, and electrolyte balance. It is a comprehensive tool for diagnosing and monitoring multiple medical conditions.

Lipid Panel

The lipid panel measures total cholesterol, HDL cholesterol, LDL cholesterol, and triglyceride levels in the blood. It is essential for assessing cardiovascular risk and guiding prevention strategies. Elevated LDL and triglyceride levels are associated with an increased risk of coronary artery disease and stroke.