what to do
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5. A 10-year-old girl has acute facial swelling and difficulty breathing. An acquired deficiency of C1 esterase inhibitor is suspected. Which of the following findings in serum will best support this diagnosis?
A ) Decreased concentration of C4
B ) Increased concentration of properdin
C ) Normal concentration of C1q
D ) Normal concentration of C1s
E ) Normal concentration of C2
is the answer A?
can anyone plz help with an explanation 
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saif
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| johnnyu041
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okay i think this girl has hereditary angioedema, in this since the c1 inhibitor protein is missing there is increased use of the products of the classic complement pathway especially c4 which leads to a decrease in there blood levels....
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| what to do
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thanx a lot
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saif
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| lq2006
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A
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