Term:RT-PCR test
Related terms
detects infection caused by SARS-CoV-2 virus (COVID-19 disease)
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.
Research
Variants and synonyms
- reverse-transcription PCR
- reverse-transcription polymerase-chain-reaction test
Definition/description
RT-PCR test was performed to detect the presence of the virus in body tissues and samples.
Source: https://www.hindawi.com/journals/tswj/2012/402537/
Examples
Thus positive RT-PCR tests in this time interval may not indicate the true cause of the respiratory disease.
Source: https://www.sciencedirect.com/science/article/pii/B9780702053184000115?via%3Dihub
However, these antibody based diagnostic methods are not as sensitive as their RT-PCR test counterparts.
Source: https://virologyj.biomedcentral.com/articles/10.1186/s12985-018-0985-8
Collocations
- positive/negative RT-PCR test
- diagnostic RT-PCR test
- RT-PCR test target
- RT-PCR test detect
- RT-PCR test indicate
- sensitive RT-PCR test
- real-time RT-PCR test
- rapid RT-PCR test
Keyness
- RT-PCR test: >1000
- reverse-transcription PCR: >1000
- reverse-transcription polymerase-chain-reaction test: >1000
Press
Variants and synonyms
- PCR test
Examples
There have long been fears that "false negatives" in the rapid tests, which are less accurate than traditional PCR tests, could lead to outbreaks but documented cases are rare.
Collocations
- negative PCR test
- take a PCR test
Keyness
- PCR test: >1000
Note
There are no occurrences of "RT-PCR test" in the press corpus.
Comments
Variants and synonyms
- PCR test
Description
[…] PCR tests are around 95% accurate MINIMUM because we look for the S gene, ORS gene and another gene (name escapes me now) meaning that we look for the base genome for ALL covid genotypings never mind which variant it is!
Source: dailymail.co.uk
Examples
I travelled yesterday from Zürich to the USA, well prepared and with all documentation including a PCR test taken less than 24 hours before departure.
Source: nytime.com
Collocations
- negative PCR test
- to require a PCR test
Keyness
- PCR test: 123
Note
“RT-PCR test” does not occur in the corpus, only “PCR test”.