An anemic patient needs a type and crossmatch for two units of packed red cells. She has had multiple transfusions in the past and now has two antibodies: anti-K and anti-E. Note that K antigen is present in 9% of the population and E antigen is present in 30% of the population. How many units must you phenotype to find two that are negative for both antigens?
An anemic patient needs a type and crossmatch for two units of packed red cells. She has had multiple transfusions in the past and now has two antibodies: anti-K and anti-E. Note that K antigen is present in 9% of the population and E antigen is present in 30% of the population. How many units must you phenotype to find two that are negative for both antigens?
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter11: Systems Of Equations
Section11.CT: Test
Problem 24CT
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An anemic patient needs a type and crossmatch for two units of packed red cells. She has had multiple transfusions in the past and now has two antibodies: anti-K and anti-E. Note that K antigen is present in 9% of the population and E antigen is present in 30% of the population. How many units must you phenotype to find two that are negative for both antigens?
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