Legal method of documenting the security of the lab testing process is called the ____.

Legal method of documenting the security of the lab testing process is called the ____.

• A. Informed consent
• B. Lab audit trail
• C. Patient charting
• D. Chain of custody

Answer: (D)

Chain of custody is the documented, verifiable trail showing who has had control of a specimen at every step—from collection, through transport and analysis, to storage or disposal. This record ensures the sample’s integrity and makes the lab results legally defensible, since it demonstrates there has been no tampering or substitution. Informed consent relates to obtaining patient permission for procedures, patient charting documents medical records, and a lab audit trail tracks activity within lab systems, not the physical custody of the specimen itself. The chain of custody directly addresses the security and provenance of the testing process.

Chain of custody is the documented, verifiable trail showing who has had control of a specimen at every step—from collection, through transport and analysis, to storage or disposal. This record ensures the sample’s integrity and makes the lab results legally defensible, since it demonstrates there has been no tampering or substitution. Informed consent relates to obtaining patient permission for procedures, patient charting documents medical records, and a lab audit trail tracks activity within lab systems, not the physical custody of the specimen itself. The chain of custody directly addresses the security and provenance of the testing process.