If the D antigen frequency is 85%, approximately what percentage of individuals are Rh positive?

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Study for the MT AAB Immunohematology Test and enhance your competence in blood banking. Prepare with flashcards and multiple-choice questions, each question accompanied by hints and explanations. Get exam-ready!

Multiple Choice

If the D antigen frequency is 85%, approximately what percentage of individuals are Rh positive?

Explanation:
Rh status is defined by the presence of the D antigen on red blood cells. If 85% of a population expresses the D antigen, then about 85% are Rh positive, because having D makes you Rh positive. The remaining roughly 15% lack D and are Rh negative. Minor rare variants can slightly affect typing, but for practical purposes D positivity equals Rh positive.

Rh status is defined by the presence of the D antigen on red blood cells. If 85% of a population expresses the D antigen, then about 85% are Rh positive, because having D makes you Rh positive. The remaining roughly 15% lack D and are Rh negative. Minor rare variants can slightly affect typing, but for practical purposes D positivity equals Rh positive.

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