Interactive worksheet
RhoGAM Dose Calculator
Explanation and Clinical Context This calculator estimates the volume of fetal whole blood and the number of 300 microgram vials of Rh immune globulin required after a positive Kleihauer Betke test or after counting fetal and total red blood cells on a stained smear. The calculation uses the conventional relation where the volume of fetal whole blood in milliliters equals the fetal cell percent multiplied by 50. Each