Which statement best describes the Biophysical Profile (BPP) in fetal assessment?

• A. A test that uses color Doppler only.
• B. A scoring system that includes ultrasound assessment of movement, tone, breathing, and amniotic fluid, plus NST.
• C. A blood test for maternal hormones.
• D. An imaging test for fetal anomalies.

Answer: (B)

Biophysical Profile is a scoring system that combines ultrasound assessment of fetal movement, tone, breathing, and amniotic fluid with the non-stress test to gauge fetal well-being. During the exam, four ultrasound-based criteria are evaluated: fetal movements (at least 3 discrete movements in 30 minutes), fetal tone (a limb or trunk movement with opening/closing of a hand), fetal breathing movements (at least one episode lasting 30 seconds or more in 30 minutes), and amniotic fluid volume (normal amount, typically indicated by a normal AFI or deepest pocket). The non-stress test monitors fetal heart rate accelerations in response to activity, with a reactive NST contributing two points. Each criterion is scored 0 or 2, giving a maximum of 10. A total of 8–10 is reassuring, 6 is equivocal, and 4 or less suggests fetal compromise that may prompt delivery or additional testing. This combined approach provides a clearer picture of fetal oxygenation and CNS function than either ultrasound or NST alone. The other options don’t fit because color Doppler alone doesn’t assess these wellbeing parameters, a maternal hormone blood test isn’t used for fetal well-being, and imaging for fetal anomalies focuses on structural defects rather than dynamic functioning and amniotic fluid assessment.