A client comes to the clinic and informs the nurse that he feels as though he has allergies. What laboratory test results will be a positive indicator for an allergic disorder?
A) Radioallergosorbent blood test (RAST) of 3
B) WBC of 7000/mm3
C) Neutrophils 60%
D) Eosinophils 6%
A
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When the RAST, which measures IgE on a scale of 0 to 5, indicates a score of 2 or greater, it is a significant indication for an allergic disorder. The RAST does not identify those, if any, substances to which a person is allergic. It only validates that the person is potentially hypersensitive to antigenic substances. The other test results are all within normal range and are not indicative of a definite allergic disorder.
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