26-year-old Woman in Obstetrics & Gynecology — 26yo Woman | General Gynecology | SMLE Q#11110
SMLE Question #11110
Obstetrics & Gynecology
General Gynecology
Objective: OBJ-ETH-STERIL
Last updated: February 2026
A 26-year-old woman delivers a healthy term infant. She is blood group B Rh-negative; her husband is O Rh-positive; the newborn is A Rh-positive. She did not receive anti-D during pregnancy and this is her first delivery. She is given 300 µg anti-D immunoglobulin intramuscularly within 72 hours postpartum to prevent Rh isoimmunization from fetomaternal hemorrhage. Which of the following volumes of fetal whole blood will be effectively covered by the prescribed 300-µg dose of anti-D immunoglobulin?
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