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A patient with recurrent Neisseria infections is evaluated for complement deficiency. C3, C4, and C5 levels...

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Biology

A patient with recurrent Neisseria infections is evaluated forcomplement deficiency. C3, C4, and C5 levels are all within normallimits. CH50 values are below the reference range. What couldexplain these results?

A. Patient has a deficiency of C1

B. Patient has non-functioning C4

C. Patient has non-functioning C5

D. Patient has a deficiency of Factor D

Answer & Explanation Solved by verified expert
4.0 Ratings (773 Votes)
The answer is option A the patient has a deficiency of C1 Explanation The complement cascade system is a part of our innate immune system where special proteins in blood stream are responsible for enhancing the abilities of antibodies to fight against antigens by marking pathogens    See Answer
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