A client who is Rh-negative has an Rh-positive newborn at 39…
A client who is Rh-negative has an Rh-positive newborn at 39 weeks gestation. The client has a Kleihauer-Betke lab test to determine the number of fetal cells in the maternal blood. The provider orders Rh D immune globulin (RhoGam) 300 micrograms IM. The nurse knows RhoGam must be given before how many hours elapse from the delivery?