Normative:RT-PCR test
Normative
Variants and synonyms
- PCR test
- RT-PCR
- PCR
- RT-PCR testing
Definition
[...] reverse transcription polymerase chain reaction (RT-PCR), which is a nucleic acid amplification (NAAT) test for COVID-19 diagnostics considered by the WHO and the ECDC to be the most reliable methodology for the testing of cases and contacts.
Source: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32021R0953
Encyclopaedic information
Many commercial NAATs that use RT-PCR rely on multiple targets to detect the virus, such that even if a mutation impacts one of the targets, the other RT-PCR targets will still work.
Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf
Examples
Diagnosis of COVID-19 was confirmed by PCR test in 90% of participants.
Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf
In a recent study, only 9 out of 19 (47%) oropharyngeal swabs from COVID-19 patients tested positive by RT-PCR.
Source: https://www.sccm.org/getattachment/Disaster/SSC-COVID19-Critical-Care-Guidelines.pdf
Positive SARS-CoV-2 PCR within 72 hours of randomization
Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf
The procedures involved in laboratory RT-PCR testing for SARS CoV-2 using a number of assays currently in use are well described.
Source: https://www.sccm.org/getattachment/Disaster/SSC-COVID19-Critical-Care-Guidelines.pdf
Collocations
- positive/negative PCR (test)
- SARS-CoV-2 PCR test
- PCR result
- PCR testing
Keyness
- PCR: 376
- RT-PCR: 144
- PCR test: >1000
- RT-PCR testing: >1000
Note
"RT-PCR test" does not occur in the corpus.