College of American Pathologists
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  RhIG Calculations Chart


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May 2008
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RhIG calculator chart
* Perinatal issues in transfusion practice. In: Brecher ME, ed. Technical Manual. 15th ed. Bethesda, Md.: AABB, 2005:535–556.

Microsoft Excel spreadsheet for calculating the dose of Rh immune globulin for excess fetomaternal hemorrhage, using the AABB Technical Manual formula.* The percentage of fetal red blood cells can be entered by itself, with the maternal blood volume assumed as 5,000 mL, or the maternal blood volume can be refined by entering height and weight, as shown here.