Name a common reason for a specimen to be rejected before testing.

Name a common reason for a specimen to be rejected before testing.

• A. Expired reagents.
• B. Incomplete chain-of-custody documentation.
• C. Seal compromise or mismatched donor information or specimen integrity concerns.
• D. Out-of-date instrument software.

Answer: (C)

Specimen integrity and proper identification are checked before testing because a test is only as trustworthy as the sample it uses. If the seal is compromised, the donor information doesn’t match, or there are other concerns about the specimen’s integrity, the sample may not reflect the intended source or condition. Releasing or testing a compromised specimen risks producing invalid or misleading results, so such issues trigger rejection before any analysis is performed. In contrast, problems like expired reagents or outdated instrument software affect the testing process itself rather than the pre-test validity of the specimen, and incomplete chain-of-custody documentation tends to delay testing or complicate validation rather than directly render the specimen invalid due to its integrity.

Specimen integrity and proper identification are checked before testing because a test is only as trustworthy as the sample it uses. If the seal is compromised, the donor information doesn’t match, or there are other concerns about the specimen’s integrity, the sample may not reflect the intended source or condition. Releasing or testing a compromised specimen risks producing invalid or misleading results, so such issues trigger rejection before any analysis is performed.

In contrast, problems like expired reagents or outdated instrument software affect the testing process itself rather than the pre-test validity of the specimen, and incomplete chain-of-custody documentation tends to delay testing or complicate validation rather than directly render the specimen invalid due to its integrity.