GuideDiagnostic Laboratory Methods

Reverse Transcriptase-Polymerase Chain Reaction

A laboratory procedure in which an RNA strand is first transcribed into a DNA complement and then subjected to PCR amplification. Transcribing an RNA strand into a DNA complement is termed reverse transcription and is done by the enzyme reverse transcriptase.

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Updated
2026-10-18
Author
National Cancer Institute (source definition)
Reviewer
Automated source check (NCI definition)

What it is

A laboratory procedure in which an RNA strand is first transcribed into a DNA complement and then subjected to PCR amplification. Transcribing an RNA strand into a DNA complement is termed reverse transcription and is done by the enzyme reverse transcriptase.

Source: National Cancer Institute, NCI Thesaurus 26.09d, C18136. NCI definition, reproduced without modification under CC BY 4.0.

Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.

Compliance note

Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.