Description

Since one 300 µg dose of RhIG will protect against a transplacental hemorrhage of 30 mL of Rh-positive fetal blood, the volume of fetal blood should be divided by 30 to determine the number of doses required. Calculating the volume of fetal blood in the maternal circulation is done by the Kleihauer-Betke procedure.

To read more or access our algorithms and calculators, please log in or register.