Prenatal Diagnostic Testing

Prenatal Diagnostic Testing

Our prenatal diagnostic experts help you decide which prenatal screenings and tests are right for you and your baby.

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Why choose UCSF Health for prenatal testing?

Our specialists provide expert care to people in the Bay Area who are planning a pregnancy or already expecting. These services are part of our women's health program, which is nationally recognized for its comprehensive care. Our team includes perinatologists (high-risk pregnancy experts), genetic counselors, specially trained ultrasonographers (ultrasound technicians) and reproductive genetic specialists.

Our maternal-fetal medicine geneticists work closely with genetic counselors, complex obstetric medicine providers and pediatric specialists. These experts provide attentive, comprehensive care for people with high-risk pregnancies.

Our prenatal diagnostic services

UCSF Health prenatal diagnostic specialists offer genetic screening tests and diagnostic services to people planning a pregnancy or already navigating one.

The decision to use these prenatal services is yours. We are here to provide the information you need to make an informed decision for you and your family.

You may want to consider genetic testing if you:

  • Have a known or suspected genetic condition (or your partner does)
  • Received previous abnormal genetic screening or test results
  • Have a history of fetal complications

Services we offer include:

Preconception screening

If you're considering getting pregnant, we offer pre-pregnancy consultations to help you understand the risk of passing a genetic condition to your child. We offer several genetic carrier screenings, including the expanded carrier screening, which tests for more than 100 genetic conditions.

Our genetic counselors help you decide whether genetic testing is the right choice for you. If you choose to proceed, they review the test results with you.

Prenatal screenings

Prenatal screenings typically include ultrasounds and blood tests:

Prenatal ultrasounds

We use ultrasounds to view your baby and make sure the fetus is developing well. We check for signs of possible genetic disorders, such as problems with the heart or spine formation.

We are the only program in the Bay Area providing people with high-risk pregnancies a detailed ultrasound in the first trimester. The ultrasound, done around 13 or 14 weeks, helps us examine the fetal anatomy to detect fetal disorders early on.

Blood tests during pregnancy

You may have a blood test to screen your baby for certain conditions, such as Down syndrome, trisomy 18, trisomy 13 and neural tube defects. This California Prenatal Screening (CA PNS) is available to all pregnant individuals in California who want it.

Do prenatal screenings diagnose fetal conditions?

Prenatal screenings cannot diagnose a condition. They can tell us that a fetal condition may be present but not if your baby definitely has it. Your genetic counselor reviews screening results with you and helps you decide if you need any follow-up tests.

Prenatal diagnostic tests

After reviewing your prenatal screening results with your genetic counselor, you may decide to have a prenatal diagnostic test to confirm or rule out certain health conditions. Our experienced providers perform amniocentesis and chorionic villus sampling (CVS). We offer all patients advanced genetic testing with chromosomal microarray and, when indicated, next-generation sequencing tests.

These tests may confirm a genetic condition diagnosis. If you or your baby needs extra care, UCSF Health's maternal-fetal medicine specialists are here to help. We partner with world-renowned cardiologists, endocrinologists, nephrologists, pulmonologists and other experts to provide the best possible outcome for you and your baby.

Recognized excellence

UCSF Health is one of the top hospitals in the nation for obstetrics and gynecology, according to U.S. News & World Report.
  • 60,000+

    amniocentesis procedures performed

  • 18,000+

    chorionic villus sampling (CVS) procedures performed

  • One of the nation’s best for obstetrics & gynecology

Related conditions & treatments

  • Conditions
    • Abnormal Genetic Test Results
    • Down Syndrome
    • Neural Tube Defects
    • Trisomy 13
    • Trisomy 18
  • Treatments
    • Amniocentesis
    • Chorionic Villus Sampling
    • Chromosomal Microarray Analysis
    • Preconception Counseling
    • Prenatal Diagnosis
    • Prenatal Genetic Counseling
    • Prenatal Ultrasound Scan

MAPS Program

Pregnant people with placenta accreta spectrum (PAS) get specialized care at UCSF Health. Experts from our Multidisciplinary Approach to the Placenta Service (MAPS) Program monitor you closely and help you safely give birth.

Neonatal intensive care unit

Our level IV NICUs provide specialized care to babies born prematurely or with complex health conditions.