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Antenatal Testing Center

Antenatal testing is used to evaluate fetal well-being in certain pregnancies. Providers may recommend this testing for some patients to obtain more information about how the placenta is functioning. A few of the reasons for testing include diabetes, hypertension, overdue pregnancy and advanced maternal age.

Specially trained registered nurses perform the tests using a fetal monitor and ultrasound. These tests are comfortable and safe, and are usually repeated at intervals to monitor the baby’s well-being over time. Most patients are seen once or twice a week.

At the Antenatal Testing Center we are committed to providing excellent care in a friendly, peaceful atmosphere that is both relaxing and reassuring.

Please call the number below to make an appointment.

Getting Here

Antenatal Testing Center
400 Parnassus Ave., Floor B1, Suite A096K
San Francisco, CA 94143
Phone: (415) 353-2722
Fax: (415) 353-2496

Hours: Monday to Friday
7:30 a.m. - 4:30 p.m.

What to Bring

  • Two forms of Identification, including photo ID
  • Insurance card

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Our Services

The two main tests provided at the Antenatal Testing Center are the Non-Stress Test (NST) and the Amniotic Fluid Index (AFI). Together, these are called a Modified Biophysical Profile (MBPP).

Non-Stress Test (NST)

The NST is a method of assessing fetal well-being by observing the fetal heart rate response to fetal movement. A fetal monitor is used for a NST. Two small monitor parts are fastened around your abdomen with soft belts. These parts are attached by cords to a monitor that records both contractions and fetal heart rate. Your nurse will provide further explanation and answer any questions during the test.

Amniotic Fluid Index (AFI)

An AFI uses an ultrasound machine to scan the uterus and measure the depth of fluid pockets. These measurements determine whether there is enough amniotic fluid (water) around the baby. You will be able to observe your baby during the ultrasound. The nurses will review the findings with you after the exam.

Biophysical Profile (BPP)

A BPP is usually done only if more information is needed following the modified BPP. It is a five-part test that uses the fetal monitor and ultrasound to evaluate the NST, AFI, fetal breathing movements, body movements and muscle tone. The test is scored and will determine if and when additional testing or evaluation is need. The nurse will discuss the test with you and answer any questions you may have.


Parking at Parnassus

Public parking for an hourly fee at UCSF Medical Center is available in the seven-level Millberry Union Garage at 500 Parnassus Ave. There are two garage entrances — one on the north side of Parnassus Avenue and another on Irving Street, just east of Third Avenue.

Another garage with an hourly fee, at 350 Parnassus Ave., is open Monday to Friday from 6 a.m. to 10 p.m.

Metered street parking is rarely available.

Patients being admitted to the hospital may be dropped off at the circular driveway leading to the main entrance at 505 Parnassus Ave. This area also may be used to pick up patients who are being discharged.

For more information about parking at Parnassus, call Campus Parking Services at 476-2566.

Valet Parking Service

Valet parking service is available at the Ambulatory Care Center (ACC) at 400 Parnassus Ave. from 8 a.m. to 3 p.m. The valet service is free but patients must pay regular parking fees. For more information about the valet service, call (415) 476-6200.

A UCSF "greeter" also is available at the ACC from 8 a.m. to 5 p.m. to assist patients find their way.

Public Transportation


UCSF Medical Center is accessible via Muni streetcar line N-Judah*, which stops at Second Avenue and Irving Street, and the following Muni bus lines, which stop in front of the hospital:

  • 43-Masonic*
  • 6-Parnassus

For more information about Muni visit,

* Wheelchair accessible bus routes

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