A Woman Received a Transfusion of Packed RBCs While Delivering

question 7

Multiple Choice

A woman received a transfusion of packed RBCs while delivering her baby. Six months later she wanted to donate a unit of blood back to the American Red Cross. If the woman meets all other criteria for donation, is she allowed to donate at this time?

• A) Yes, she can donate at this time.
• B) No, she needs to wait 3 more months.
• C) No, she needs to wait 6 more months.
• D) No, she should be on permanent deferral.

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Definitions:

P(A Or B)

The probability that at least one of two events, A or B, will occur.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Independent Events

Two or more events where the occurrence or outcome of one event does not affect the occurrence or outcome of the other.

P(A And B)

The probability of both event A and event B occurring together.