A group of six people (three men and three women) go climbing in the Andes. Whil

Question

A group of six people (three men and three women) go climbing in the Andes. While passing a ledge, one of the men loses his footing and takes a 15- foot fall. The others manage to bring him to the nearest hospital, where it is established that immediate emergency surgery is needed in order to save use of his damaged legs. The problem is that a blood transfusion may be necessary, but the climber does not remember his blood type, however he does remember that both of his parents have type A-negative blood. The five other climbers immediately offer to donate blood, if necessary. However, even before knowing the blood type of the patient, three blood donors can be ruled out. (Select all donors which can be ruled out) OA Woman: Blood type B-negative B. Woman: Blood type O-positive c. Man: Blood type A-negative D.Woman: Blood type O-negative E. Man: Blood type AB-negative

Explanation / Answer

Options A-women blood type B-negative can be ruled out as patient may have A negative blood group like his parents.

OptionaB-women:blood type O-positive canbe ruled out due to incompatibility of Rh factor. Option E:Man: AB-negative-can be ruled out due to their incompatibility

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