Overview
This entry consolidates the core Module 1 molecular diagnostics vocabulary, nucleic acid types, process terms, interpretation terms, and quality terms, into one quick-reference glossary.
Classification
| Category | Terms |
|---|---|
| Nucleic acid types | DNA, RNA |
| Process terms | Target, amplification, PCR, probe |
| Interpretation terms | Ct/Cq, limit of detection (LOD) |
| Quality terms | Positive control, negative control, internal/extraction control |
Morphologic Features
Not applicable, this entry is a terminology reference rather than a description of cell, organism, or specimen morphology.
Laboratory Characteristics
- Use 'target' precisely, never as a synonym for 'organism' or 'entire gene'
- Treat Ct/Cq and limit of detection (LOD) as assay-specific, not comparable across platforms
- Confirm controls before interpreting any detected/not detected call
Reference Intervals
Not applicable, individual terms such as Ct/Cq and limit of detection (LOD) are assay-defined values established through validation, not fixed patient reference ranges.
Clinical and Laboratory Significance
Correct, precise use of this terminology is required to read, document, and escalate molecular results safely, and is directly assessed in the Module 1 quiz.
Differential Considerations
Not applicable, this is a terminology reference, not a clinical differential diagnosis.
Comparison Tables
Frequently confused term pairs
| Term pair | Key distinction |
|---|---|
| DNA target vs RNA target | DNA is stable/double-stranded; RNA testing often needs reverse transcription before amplification |
| Target vs organism/gene | Target = the specific validated sequence; the organism or gene may be much larger than the target region |
| Ct/Cq value vs universal cutoff | Ct/Cq is assay- and platform-specific; it is not a fixed clinical threshold |
Classification Frameworks
Not applicable.
Laboratory Notes
- Use this glossary as a quick review before the Module 1 assessment
- When unsure of institutional wording for any term, verify local SOP rather than assuming a universal definition
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.
Frequently Asked Questions
Common questions about using this Basic Molecular Terminology foundational topics Medical Laboratory Library reference in Medical Laboratory Science education.
What is the Basic Molecular Terminology laboratory reference?
Basic Molecular Terminology is a Foundational Topics entry in the LabPedia Medical Laboratory Library, written for Medical Laboratory Science reference lookup.
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Can reference details vary between laboratories?
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