A nurse is caring for a client who delivered a healthy newborn 2 hours ago. The client's blood type is O negative, and the newborn's blood type is A positive. Which nursing action is most appropriate?

Withhold Rho(D) immune globulin (Rhogam) because the mother has already delivered.

Administer Rhogam within 72 hours postpartum.

Withhold Rhogam because there is no indication for a second dose with the newborn's blood type.

Administer Rhogam only if the mother plans future pregnancies.