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PCR (polymerase chain reaction) tests are a reliable and accurate way to diagnose certain infectious diseases , some types of cancer , and certain genetic changes. The tests check for small amounts of genetic material of a pathogen (disease-causing organism) or abnormal cells in a sample of your blood, saliva, mucus, or tissue. The genetic material could be:

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Article

Predictors of Acute Kidney Injury and In-Hospital Mortality in Patients With RT-PCR Confirmed Lassa Fever in Southwest Nigeria.

Research record from Open Forum Infect Dis, 2026-07-04. PMID 42444789.

Article

Pseudovirus reference material and RT-digital PCR reference method for the quantification of human rhinovirus RNA with metrological traceability.

Research record from Clin Chem Lab Med, 2026-05-07. PMID 42089532.

Glossary Term

Reverse Transcription PCR (RT-PCR)

A two-step setup in which RNA is first copied into complementary DNA by a reverse transcriptase and then amplified by PCR. Used for RNA viruses such as influenza, RSV, SARS-CoV-2, and HCV. In procurement documents, confirm whether "RT-PCR" refers to real-time (quantitative) or endpoint (qualitative) reading.

Pcr Terms

Article

SARS-CoV-2 Evolution and Its Implications for RT-PCR Diagnostic Performance.

Research record from J Med Virol, 2026-06-01. PMID 42312714.

Tests

SARS-CoV-2 RNA Detection

Molecular detection of SARS-CoV-2 RNA for COVID-19 diagnosis and screening.

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HIV-1 Viral Load

Incorporation of sputum real-time RT-PCR into routine diagnostics increases case detection of respiratory syncytial virus lower respiratory tract infections in older adults.

Influenza A/B RNA Detection

Molecular point-of-care testing versus conventional RT-PCR for influenza A: Diagnostic performance, clinical decision-making, and costs in a tertiary hospital in Shenzhen, China.

Multiplex RT-PCR-Based Sequencing Assay to Detect Kidney Cancer-Specific Splice Variants in Tumor Tissues and Plasma Cell-Free RNAs.

Observed Clinical and Operational Factors Are Associated with Biomarker Test Utilization in Respiratory Virus RT-PCR Testing: A Real-World Analysis of Inflammatory, Cardiac, and Thrombotic Biomarkers.

PCR Tests

Predictors of Acute Kidney Injury and In-Hospital Mortality in Patients With RT-PCR Confirmed Lassa Fever in Southwest Nigeria.

Pseudovirus reference material and RT-digital PCR reference method for the quantification of human rhinovirus RNA with metrological traceability.

Reverse Transcription PCR (RT-PCR)

SARS-CoV-2 Evolution and Its Implications for RT-PCR Diagnostic Performance.

SARS-CoV-2 RNA Detection