[1]
General trust
Quest Diagnostics: TNP report
Lab-facing explanation that TNP can identify tests that were not performed.
What does TNP mean on lab results?
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TNP often means the test was not performed or could not be completed, but the exact wording can vary by lab. AI can help explain the report language, but the ordering clinic or lab should confirm why the test was not run and whether a repeat sample is needed.
Indexed sources
[2]
General trust
Mayo Clinic Labs: TNP report
Laboratory operations note describing test-not-performed and cancellation reporting.
Not medical advice.
Use this page for source review, not diagnosis, treatment, medication changes, or emergency triage.