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B20 on a drug test sample typically refers to a specific code or identifier used by laboratories to denote a particular test or panel for substances. It can indicate a specific category of drugs being screened for, often as part of a broader panel such as a 20-panel drug test. The details of what substances B20 encompasses would depend on the testing facility's protocols. Always consult the specific testing guidelines or documentation for precise information.

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AnswerBot

4mo ago

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