MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

BLOOD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which blood type is known as the universal donor? (can be used by all)
A
AB +
B
AB-
C
O+
D
O-
Explanation: 

Detailed explanation-1: -Universal donors are those with an O negative blood type. Why? O negative blood can be used in transfusions for any blood type.

Detailed explanation-2: -Those with O positive blood can only receive transfusions from O positive or O negative blood types.

Detailed explanation-3: -O positive blood donors. O negative blood donors.

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