A G1+O attends the antenatal clinic for the booking visit at 12 weeks. Her blood group is B Rhesus negative.What is the next step in the management?: (A) Determine the fetal blood group, (B) Determine the husband's blood group, (C) Perform an ultrasound scan, (D) Perform Rhesus antibody titer
Answer is B. Ans. is b, i.e. Determine the husbands blood groupWhen a rhesus negative primipara attends the antenatal clinic, the first step is to determine her husband's blood group. If the husband is Rhesus negative no further investigations are necessary, as all babies will be Rhesus negative.