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A 1-Year-Old Boy Is Evaluated for a Suspected Immune Deficiency

question 4

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A 1-year-old boy is evaluated for a suspected immune deficiency.He has a history since birth of eczema,recurrent rashes,and diarrhea.(Normal values are given in parentheses.) His WBC count is 6.75/uL (5.0-10.8 × 103 uL) with a normal differential.Platelet count is 35,000 (150,000-350,000/uL) and the platelets are small.His IgG is 750 mg/dL (600-1,500 mg/dL) ,IgM is 30 mg/dL (75-150 mg/d:) ,IgA is 475 mg/dL (50-125 mg/dL) ,and IgE is 750 mg/dL (10-50 mg/dL) .The boy's blood is typed as O-positive,and he does not have anti-A or anti-B antibodies.Flow cytometry performed on his blood shows 11% (5-20%) CD19 and 50% (60-80%) CD3 cells with a normal ratio of CD4:CD8.T-cell function tests are abnormal.This boy most likely has:


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Anthropologists

Scientists who study human societies, cultures, and their development over time.

Gestures

The ways in which people use their bodies to communicate without words; actions that have symbolic meaning.

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The ideas associated with a cultural group, including ways of thinking (beliefs, values, and assumptions) and ways of behaving (norms, interactions, and communication).

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