Short answer
Detected reports target DNA present in the analyzed sample; not-detected reports it absent from that sample at that time.
Molecular wording scopes claims tightly. To the sample, the moment, the organism tested.
It certifies nothing about other sites (untested anatomy), other times (pre-window exposures), or other infections (untested organisms).
Read NAAT wording as powerful-but-bounded evidence, and bound every conclusion by timing and coverage review.
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See Tests & Prices →Scope boundaries of molecular wording
- Sample-bound. The swab or urine tested. Other sites unaddressed by definition.
- Time-bound. Post-collection exposures and pre-window infections escape retrospectively.
- Organism-bound. Panel membership defines the universe; absent organisms were never examined.
- Technique-bound. Collection quality flows directly into detection capability.
Negative meanings: Understanding a Negative STI Test Result.
Timing caveats: Testing Too Early: How Timing Hurts Accuracy.
Acting on molecular results
- Detected: confirmatory and clinical pathways per organism. Detection starts management, never completes it alone.
- Not-detected, well-timed and complete: genuine reassurance worth filing.
- Not-detected, early or narrow: scheduled retesting with broadened coverage.
- Any confusion: the ordering clinician interprets within full clinical context.
Molecular result confidence levels
NAAT confidence stratifies by context, not uniformly: high-load symptomatic detections stand firmest; asymptomatic screening detections stand firmly with window and site propriety; low-level detections near assay limits warrant confirmatory review; unexpected detections (no plausible exposure) trigger contamination and mix-up investigation.
Confidence is contextual computation, never binary label reading.
Strengthen confidence deliberately: proper windows and sites before testing (pre-test rigor), complete exposure histories enabling interpretation, confirmatory pathways for surprising findings, and clinician correlation closing every loop.
High-confidence molecular results rest on pyramids of correct preliminaries. Each layer earns the conclusion jointly.
Build pyramids carefully; conclusions then stand solidly.
Assay cutoff philosophy
Detection thresholds embody deliberate trade-offs: lower cutoffs catching more true infections at more false-positive cost, higher cutoffs reversing the balance toward specificity.
Manufacturers set cutoffs optimizing intended-use contexts (screening assays sensitively, confirmatory assays specifically), and clinicians interpret near-cutoff results with threshold-awareness.
Cutoff literacy prevents over-reading marginal results: barely-detected findings differ meaningfully from strongly-detected ones in confirmatory urgency, while comfortably-not-detected results reassure more than borderline ones.
Quantitative appreciation (signal strength matters) improves on binary thinking without requiring laboratory expertise.
Thresholds are decisions, not nature. Interpret accordingly.
When to seek care
Now if a result is positive or indeterminate. Confirmatory and treatment pathways start immediately, not after deliberation.
On schedule for window-based rechecks, and promptly for any symptom contradicting paperwork.