A patient has a history of severe responses to skin testing done for allergies. What should be used in place of skin testing for this patient?
1. radioallergosorbent test
2. white blood cells count and differential
3. blood type and crossmatch
4. immune complex assay
Correct Answer: 1
Radioallergosorbent test is a blood test that measures the amount of IgE directed toward specific allergens. Test results are compared with control values and used to identify hypersensitivities. This test may also be used instead of skin testing if a severe allergic response is suspected. White blood cell count and differential, blood type and crossmatch, and immune complex assay tests are not used instead of skin testing if a severe allergic response is suspected.
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