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Which procedure should the laboratory follow to ensure a urine specimen is not tampered with when performing a drug screening?



A. Control testing

B. Chain of custody

C. Proficiency testing

D. Preventive maintenance

Answer :

Final answer:

The primary procedure to ensure that a urine specimen is not tampered with during drug screening is by following a chain of custody. This involves documenting the handling and transfer process of the specimen to maintain its integrity. Other procedures, although important, do not specifically address tampering.


Explanation:

Ensuring Integrity in Urine Specimens for Drug Screening


To ensure that a urine specimen is not tampered with during a drug screening, the laboratory should follow a chain of custody procedure. This involves a documented process that tracks the handling of the specimen from the moment it is collected to when the results are reported.


Importance of Chain of Custody


The chain of custody ensures that the specimen is handled properly, maintaining its integrity and preventing any tampering or contamination. It typically involves:



  1. Documenting each transfer of the specimen, including the names of individuals involved.

  2. Sealing the specimen container with tamper-evident seals.

  3. Storing specimens in secure locations.

  4. Maintaining records of every step taken until testing is complete.


While control testing, proficiency testing, and preventive maintenance are important laboratory practices, they do not specifically address the issue of specimen tampering. Only a robust chain of custody procedure can provide the necessary assurance that the urine specimen is authentic and untainted.


Learn more about chain of custody here:

https://brainly.com/question/30562375


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