How does the blood test work? - KXXV-TV News Channel 25 - Central Texas News and Weather for Waco, Temple, Killeen |

How does the blood test work?

A sample of blood is drawn and sent to a laboratory to be analyzed for the presence of antibodies to specific allergens. Your doctor needs to be careful that testing is performed by a competent laboratory, because laboratories differ in their ability to provide accurate results.
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