Tzeadim › Pregnancy · Third trimester

Tests, visits & vaccines · Health

Rh-negative: antibody screen and anti-D at 28 weeks

If your blood type is Rh-negative

Usually weeks 26–29

What it is

Antibody screen at 24–28 w (basket), then an anti-D injection at ~28 w and within 72 h after birth if the baby is Rh-positive; also after any bleeding or amniocentesis.

Sources

• Recommended tests during pregnancy (May 2024 table) — Israel Ministry of Health · checked 02-09-2026
• Guidelines for Perinatal Care, 8th edition — ACOG / AAP · checked 02-09-2026

Last reviewed 01-09-2026 · Confidence: medium

Compiled with AI assistance from the public sources listed above. Not yet reviewed by a clinician — check anything important against the source, with Tipat Halav or with your doctor.