What is the Chain of Custody in specimen handling, and why is it critical?

• A. Documentation of patient consent
• B. Method for labeling specimens
• C. Documentation of each person who handles a specimen from collection to testing; ensures integrity and admissibility
• D. A list of tests to be performed

Answer: (C)

The chain of custody is the documented trail showing every person who handles a specimen from collection through testing, including who transferred it, when, and under what conditions. This keeps a clear record so the specimen’s identity and integrity are preserved from start to finish, making the test results trustworthy and defensible in regulatory or legal settings.

Why this is critical: when each step and handler is recorded, you can prove the specimen wasn’t swapped, contaminated, or tampered with, and you can confirm the conditions it was stored under. This traceability supports the reliability of the results and meets requirements for admissibility and quality assurance.

The other aspects mentioned—documentation of patient consent, labeling methods, or a list of tests—are important parts of specimen handling, but they do not provide the ongoing, accountable history of who handled the specimen from collection to reporting that defines the chain of custody.