The nurse is caring for a primigravida client who delivered vaginally 48-hours ago. The client's laboratory results are: haemoglobin 12.5 g/dL (125 g/L), hematocrit 34% (0.34 volume fraction), hepatitis B surface antigen negative, rubella non-immune, group B Streptococcus positive. Which prescription should the nurse prepare to administer? Reference Range Hemoglobin [Pregnant female: greater than 11 g/dL (greater than 110 g/L)] Hematocrit [Pregnant female: greater than 33% (greater than 0.33 volume fraction)] Hepatitis B surface antigen [Negative] Rubella [Immune] Group B Streptococcus [Negative]

A. Blood transfusion: The client’s hemoglobin and hematocrit levels are within normal limits for a postpartum woman, indicating adequate blood volume. Therefore, a transfusion is unnecessary at this time. B. Hepatitis B immunoglobulin: Hepatitis B immunoglobulin is indicated for newborns of mothers who test positive for the hepatitis B surface antigen. Since this client is hepatitis B negative, this intervention is not required. C. Penicillin G potassium: Penicillin G is administered intrapartum to prevent neonatal transmission of group B Streptococcus (GBS). Postpartum administration is not necessary for the mother unless there is an active infection. D. Rubella vaccination: The client is non-immune to rubella, making postpartum vaccination appropriate. Administering the MMR vaccine after delivery protects the client from future infection and prevents congenital rubella syndrome in subsequent pregnancies.