#march2020mccqe1
A 2-year-old boy is brought to the physician by his parents because of recurrent sinus infections. The parents also state that the boy has had multiple lung infections. Which of the following results would most likely be found on further testing?
(A) A deficit in IgA level
(B) A low IgM level, with increased IgA
(C) A negative nitroblue tetrazolium dye test
(D) An increase in IgE level
(E) A normal Ig level for all isotypes
A 2-year-old boy is brought to the physician by his parents because of recurrent sinus infections. The parents also state that the boy has had multiple lung infections. Which of the following results would most likely be found on further testing?
(A) A deficit in IgA level
(B) A low IgM level, with increased IgA
(C) A negative nitroblue tetrazolium dye test
(D) An increase in IgE level
(E) A normal Ig level for all isotypes
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