A 26-year-old primigravida at 20 weeks of gestation attends the GP surgery. Her booking blood group is A Rhesus D negative. She reports she slipped an...

Question

A 26-year-old primigravida at 20 weeks of gestation attends the GP surgery. Her booking blood group is A Rhesus D negative. She reports she slipped and fell yesterday, landing on her abdomen. She has no bleeding and the fetal heart is audible on handheld Doppler. Which is the single most appropriate action regarding her Rhesus status?

Accepted Answer

Arrange a Kleihauer test and administer anti-D immunoglobulin within 72 hours of the event

Answer

No action required as there is no vaginal bleeding

Answer

Administer anti-D immunoglobulin only if bleeding occurs within 48 hours

Answer

Anti-D is only required for sensitising events after 20 weeks

Answer

Defer anti-D until routine antenatal prophylaxis at 28 weeks

uk-drcog MCQ (SBA): Anti-D Prophylaxis for Sensitising Events