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.

Source: https://www.telegraph.co.uk/global-health/science-and-disease/coronavirus-news-covid-vaccine-lockdown-end-quarantine-schools/

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”.