Copy designated for the confirmatory laboratory (for positive sample) is which type?

Copy designated for the confirmatory laboratory (for positive sample) is which type?

• A. Copy for the Collection Site
• B. Copy for the Laboratory
• C. Copy for the Confirmatory Laboratory (for positive sample)
• D. Original report

Answer: (C)

When a specimen yields a positive result or requires confirmation, a specific copy is designated to be sent to the confirmatory laboratory to support independent verification. This copy carries all the essential information and chain-of-custody details needed by the confirmatory lab to perform the requested confirmatory testing (such as GC/MS) and to correlate results with the initial screening. Sending this copy ensures the confirmatory lab has the proper context and identification to validate the result without delays or mix-ups. The copy intended for the collection site is for documenting the collection event and maintaining custody at the collection point, not for guiding confirmatory analysis. The copy for the laboratory is used for the screening lab’s own records and workflow, not specifically for the confirmatory testing step. The original report represents the final product of the testing process sent to the employer and isn’t the copy designated for the confirmatory lab.

When a specimen yields a positive result or requires confirmation, a specific copy is designated to be sent to the confirmatory laboratory to support independent verification. This copy carries all the essential information and chain-of-custody details needed by the confirmatory lab to perform the requested confirmatory testing (such as GC/MS) and to correlate results with the initial screening. Sending this copy ensures the confirmatory lab has the proper context and identification to validate the result without delays or mix-ups.

The copy intended for the collection site is for documenting the collection event and maintaining custody at the collection point, not for guiding confirmatory analysis. The copy for the laboratory is used for the screening lab’s own records and workflow, not specifically for the confirmatory testing step. The original report represents the final product of the testing process sent to the employer and isn’t the copy designated for the confirmatory lab.