A biophysical profile (BPP) test measures the health of your baby ( fetus ) during pregnancy. The results are scores on five measurements in a 30-minute observation period.
A score of 8 to 10 points means that your baby is healthy. A score of 6 to 8 points means that you may need to be retested in 12 to 24 hours. A score of 4 or less may mean the baby is having problems. Further testing will be recommended.
- Biophysical profile 1
- Normal (2 points)
- Abnormal (0 points)
- Nonstress test
- Breathing movement
- Body movement
- Muscle tone
- Amniotic fluid volume ( amniotic fluid index )
- One or more pockets of amniotic fluid are seen in the uterus, each at least 1 cm (0.4 in.) wide and long.
- The amniotic fluid index is between 5 cm (2 in.) and 24 cm (9.4 in.). 2
2 or more heart rate increases of at least 15 beats per minute. Each increase lasts 15 seconds or more and is seen with movement.
Only 1 heart rate increase is seen, or the heart rate does not increase by more than 15 beats with movement.
1 or more breathing movements last at least 60 seconds.
Breathing movement lasts less than 60 seconds, or no breathing is seen.
3 or more movements of the arms, legs or body
Less than 3 movements of the arms, legs or body
Arms and legs are usually flexed and the head rests on the chest. 1 or more extensions and return to flexion are seen, such as the opening and closing of a hand.
The fetus extends slowly and only returns partway to a normal position.
The fetus extends but does not return to a normal position.
The arms, legs or spine are extended, or a hand is open.
Not enough amniotic fluid is seen in the uterus.
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