What is a biophysical profile (BPP)?A biophysical profile (BPP) is a test that combines a nonstress test with ultrasound. An ultrasound is a diagnostic technique that uses high-frequency sound waves to create an image of the internal organs. Biophysical profile testing is usually performed in the last trimester of pregnancy.
There are five parts to a biophysical profile:
- the nonstress test
- fetal breathing movements
- fetal movements
- fetal tone
- amniotic fluid volume
How is a biophysical profile performed?Each of the five areas of the biophysical profile has a possible total score of two points, for a total of 10 points. A score of:
- eight to ten is usually considered normal.
- six is considered equivocal (uncertain).
- four or less is considered abnormal.
What is a modified biophysical profile?Another type of BPP is sometimes performed. The modified BPP combines the nonstress test and an evaluation of the amount of amniotic fluid called the amniotic fluid index (AFI). A pocket of amniotic fluid is measured using ultrasound, and the total amount of amniotic fluid is estimated.
The information on this Web page is provided for educational purposes. You understand and agree that this information is not intended to be, and should not be used as, a substitute for medical treatment by a health care professional. You agree that Lucile Salter Packard Children's Hospital is not making a diagnosis of your condition or a recommendation about the course of treatment for your particular circumstances through the use of this Web page. You agree to be solely responsible for your use of this Web page and the information contained on this page. Lucile Salter Packard Children's Hospital, its officers, directors, employees, agents, and information providers shall not be liable for any damages you may suffer or cause through your use of this page even if advised of the possibility of such damages.