An Acid Elution Stain Was Made Using a 1-Hour Postdelivery

Multiple Choice

An acid elution stain was made using a 1-hour postdelivery maternal blood sample. Results: 10 fetal cells/1000 cells counted
It is the policy to add 1 vial of Rh immune globulin to the calculated dose when the estimated volume of the hemorrhage exceeds 20 mL of whole blood. Calculate the number of vials of Rh immune globulin that would be indicated under these circumstances.

A) 2
B) 3
C) 4
D) 5