Growth Scan (3rd Trimester)
Also called: Foetal Growth Scan, Third Trimester Scan, Doppler Scan
Measures baby's growth, amniotic fluid, and placental blood flow after 28 weeks.
- Duration
- 25 min
- Report
- Same day
- Fasting
- Not needed
What this test is
The third-trimester growth scan estimates the baby's weight and growth percentile, measures amniotic fluid, checks the placenta, and uses Doppler to evaluate blood flow in the umbilical artery and other vessels. Done at 28–34 weeks routinely, and more often if there are concerns about restricted growth, diabetes, or hypertension in pregnancy.
When you need this test
- 28–34 weeks routine growth check
- Suspected small-for-dates or large-for-dates baby
- Gestational diabetes monitoring
- Pregnancy-induced hypertension
- Reduced foetal movements
How to prepare
- No fasting required.
- Eat normally — an active baby is easier to image.
- Drink water and stay hydrated.
- Bring all antenatal reports and any previous growth scans.
Why DiagnoHouse for this test
GE Voluson class
Modern high-resolution probes with doppler capability.
Female sonographer
Available for gynaecological, breast, and obstetric scans on request.
NABL accredited
Independent quality audit against ISO 15189 standards.
Reports on WhatsApp
Soft copies on WhatsApp + email. Printed films and reports on request.
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- Report time
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- Duration
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- Report time
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FAQs
How accurate is the weight estimate?
Within 10% of actual birth weight in most cases. Less accurate for very large or very small babies.Why Doppler?
Doppler measures blood flow in the umbilical artery. Abnormal flow can be an early sign of placental problems, allowing early intervention.How often is this scan needed?
Once at 28–32 weeks in low-risk pregnancies. Every 2–4 weeks if concerns about growth or placental function.
Need help choosing?
Not sure if this is the right test for you? Have a doctor's note? Call or WhatsApp — guidance is free.
5,000+ scans · 4.8 ★ avg rating · NABL accredited · Reports on WhatsApp