Ultrasound Biophysical Profile

A biophysical profile (BPP) is a prenatal test combining a non‑stress test and ultrasound to evaluate fetal well‑being. It scores fetal heart‑rate reactivity, breathing, gross body movements, muscle tone and amniotic fluid volume (each 0 or 2) for a total 0–10. Scores 8–10 are reassuring; 6 is equivocal; ≤4 suggests possible fetal compromise and may prompt intervention.

Biophysical profile (BPP) ultrasounds are typically performed in the third trimester, usually from about 32 weeks onward. They’re commonly done for high‑risk pregnancies or when fetal well‑being is a concern (e.g., decreased movements or a non‑reactive nonstress test). Timing varies with clinical indications; some providers repeat BPPs weekly or more often as term approaches.

The five parts of the biophysical profile are: (1) a non‑stress test assessing reactive fetal heart rate, (2) fetal breathing movements, (3) gross fetal movements, (4) fetal tone (flexion/extension), and (5) amniotic fluid volume (single deepest pocket or AFI). Each component is scored to evaluate fetal well‑being, with higher totals indicating normal oxygenation and central nervous system function.

A normal biophysical profile (BPS) score is 8–10 out of 10. The test assigns 0 or 2 points to five components: nonstress test, fetal breathing, gross movements, tone, and amniotic fluid. A score of 6 is equivocal and usually prompts closer surveillance or retesting; 0–4 suggests possible fetal compromise and typically requires urgent evaluation.

Do you mean a BPP (biophysical profile) ultrasound? Typical prices vary by country and facility: India roughly ₹800–3,000; UK NHS care is free for residents, private scans about £60–200; US outpatient costs commonly range $150–500 (insurance often covers). Tell me your country or confirm "BPS" meaning and I’ll give a more precise local estimate.

A 32‑week ultrasound evaluates fetal growth and estimated weight, checks fetal position and presentation for delivery planning, assesses placenta location and function, measures amniotic fluid volume, and examines fetal anatomy and Doppler blood flow if indicated. It helps detect late growth restriction, oligohydramnios or placenta previa, guides monitoring or interventions, and confirms overall fetal well‑being before term.