How many units would you likely have to screen to find two compatible units for someone with the following antibodies: anti-C, anti-Le^a, anti-Jk^b? A) 10 B) 15 C) 32 D) 35

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Quizplus · Accepted Answer

To find compatible blood units, you need to consider the frequency of each antigen in the population. Anti-C, anti-Lea, and anti-Jkb are relatively common antibodies. The combined probability of finding a unit negative for all these antigens is low, requiring screening of approximately 32 units to find two compatible ones.

How Many Units Would You Likely Have to Screen to Find