If an immune dysfunction is suspected in a child,the appropriate workup would be a(n):

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Clinical and laboratory tests for the evaluation of patients with suspected disorders must be informative,reliable,and cost-effective.A complete blood count (CBC)and erythrocyte sedimentation rate (ESR)are among the most cost-effective screening tests.If the ESR is normal,chronic bacterial infection is unlikely.If the absolute neutrophil count is normal,congenital and acquired neutropenias and severe chemotactic defects are eliminated.If the absolute lymphocyte count is normal,the patient is not likely to have a severe T cell defect.The absolute lymphocyte count is the number of lymphocytes in the total white blood cell (WBC)population.

If an Immune Dysfunction Is Suspected in a Child,the Appropriate