Multiple Choice
Which plasma component is absent from serum?
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17. The Blood
Introduction To Blood
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An individual with which type of blood is considered a universal recipient?
A
Type B negative
B
Type O negative
C
Type A positive
D
Type AB positive
Verified step by step guidance1
Understand the concept of blood types: Blood types are determined by the presence or absence of specific antigens on the surface of red blood cells. The main antigens are A, B, and Rh factor (positive or negative).
Identify the universal recipient: A universal recipient is someone who can receive blood from any blood type without experiencing an immune reaction. This is due to the absence of antibodies that would attack the donor blood.
Analyze the blood types: Type AB positive blood has both A and B antigens and the Rh factor. This means individuals with AB positive blood do not have anti-A, anti-B, or anti-Rh antibodies.
Compare with other blood types: Type B negative lacks the A antigen and Rh factor, Type O negative lacks both A and B antigens and the Rh factor, and Type A positive lacks the B antigen.
Conclude why AB positive is the universal recipient: Since AB positive individuals have no antibodies against A, B, or Rh antigens, they can receive red blood cells from any blood type, making them universal recipients.
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