Overview
Validated molecular report writing releases results using assay- and laboratory-approved categories, units, reportable-range framing, and limitation comments, without unsupported disease, exclusion, or treatment certainty.
Classification
| Result situation | Validated approach |
|---|---|
| Detected / positive | Assay detection language only |
| Not detected / negative | Assay not-detected language only |
| Quantitative | Number + units + reportable range / flags |
| Invalid | Invalid / unable to report . SOP next step |
| Inconclusive | Exact SOP inconclusive/indeterminate wording |
| Ct/Cq comment | Only if allowed; no universal severity claim |
Morphologic Features
Not applicable, this entry covers molecular reporting language, not morphologic identification.
Laboratory Characteristics
- Prefer structured codes over improvised prose
- Escalate requests for unauthorized interpretive language
- Keep treatment and prognosis out of result comments
Reference Intervals
Quantitative molecular reports require assay-specific units and reportable ranges. Ct/Cq thresholds are method-dependent and are not universal clinical cutoffs.
Clinical and Laboratory Significance
Safe wording preserves analytical meaning. Overclaiming converts detection into false diagnostic certainty; calling invalid 'negative' hides analytical failure.
Differential Considerations
Before finalizing free-text, exclude invalid runs, near-limit ambiguity requiring SOP language, missing units, and pressure to add treatment instructions.
Comparison Tables
Report-writing guardrails
| Requested phrase | Problem | Safer alternative |
|---|---|---|
| 'Active infection confirmed' | Unsupported disease certainty | Detected / Positive for [target] per assay |
| 'Disease ruled out' | Overclaims exclusion | Not detected for [target] (valid run) |
| 'Negative' after failed IC | Invalid ≠ negative | Invalid, repeat/recollect per SOP |
| 'High Ct = mild disease' | Ct method-dependent myth | Report Ct only if SOP allows; no severity claim |
| 'Start therapy now' | Treatment order in lab report | Scoped laboratory result only |
Classification Frameworks
Not applicable . World Health Organization (WHO) disease classifications do not define molecular LIS wording.
Laboratory Notes
- Validated terminology only
- Units + reportable range for quantitatives
- No unsupported certainty; invalid ≠ negative
References
Authoritative textbooks, guidelines, and reviews supporting this reference entry. Verify reference intervals, critical limits, and reflex criteria against institutional protocols and current guideline editions.
Textbooks
- McPherson RA, Pincus MR. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Elsevier; 2021. (Molecular diagnostics chapters, verify current edition.)
- Buckingham L. Molecular Diagnostics: Fundamentals, Methods, and Clinical Applications. 3rd ed. F.A. Davis; 2019. (Verify current edition.)
CLSI and Professional Guidelines
- Clinical and Laboratory Standards Institute (CLSI). Consult current CLSI molecular method documents available through your laboratory, document numbers and editions change; do not treat any single CLSI title as universal.
- Institutional molecular laboratory SOPs, assay manufacturer instructions for use (IFU), and locally adopted accreditation requirements. Always verify current local practice.
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