How many donor units should be screened to find

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Reference no: EM133477796

Problem

A 60-year-old woman with anemia is admitted to the hospital. Her hematocrit is 17%, and she has been experiencing subtle gastrointestinal bleeding over many weeks. Her physician requests 4 units of red blood cells for transfusion. The patient's red blood cells are phenotyped as group AB, D-positive. Her antibody screen is negative on the sample drawn today in the emergency room, but her records indicate a previously detected anti-K. The current blood bank inventory is listed below.

O+	O-	A+	A-	B+	B-	AB+	AB-
15	5	20	5	5	3	2	5

How many donor units should be screened to find the 4 units ordered, plus 2 more to hold in reserve for the patient? (Disregard ABO group percentages for this question.)

Reference no: EM133477796

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