This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: erythrocytes are destroyed before her immune system can discover them. This is passive immunity and the effect of the immunity will wear off after about 4 to 6 weeks (or longer depending on injected dose) as the anti-Rh antibodies gradually decline to zero in the maternal blood. It is part of modern antenatal care to give all Rhesus D negative pregnant women an anti-RhD IgG immunoglobulin injection at about 28 weeks gestation (with or without a booster at 34 weeks gestation). This reduces the effect of the vast majority of sensitizing events which mostly occur after 28 weeks gestation. Anti-RhD immunoglobulin is also given to non-sensitized Rhesus negative women immediately (within 72 hours - the sooner the better) after potentially sensitizing events that occur earlier in pregnancy....
View Full Document
- Fall '10
- Anthropology, Ectopic pregnancy, Rhesus incompatibility Treatment, Rh +va foetus