A 7-Month-Old Boy Is Evaluated in the Clinic for Recurrent

question 16

Multiple Choice

A 7-month-old boy is evaluated in the clinic for recurrent bacterial infections.His tonsils are not visible on physical examination.Serum immunoglobulin A (IgA) and IgG levels are markedly decreased,and serum IgM levels are slightly below normal.Based on the findings described,which one of the following should be excluded from the differential diagnosis?

• A)X-linked agammaglobulinemia
• B)X-linked severe combined immunodeficiency disease (X-linked SCID)
• C)Common variable immunodeficiency
• D)X-linked hyper-IgM syndrome
• E)Adenosine deaminase deficiency (ADA)

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Gay or Lesbian

Gay or lesbian describes individuals who are romantically or sexually attracted to people of the same sex.

Instrumental Support

Assistance provided to an individual in the form of tangible help or services, such as financial aid or physical help.

Tangible

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