PCR Test: What It Is, How It Works & Results - Cleveland Clinic
A PCR (polymerase chain reaction) test is a lab technique that amplifies (creates more copies) of genetic material (DNA). Healthcare providers can use PCR to test for infectious diseases, to …
What is a PCR test, and how does it work? - Medical News Today
Jan 29, 2024 · In this article, we explore what PCR tests are in more detail, including how they work and how doctors interpret the results.
PCR Tests: MedlinePlus Medical Test
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 …
Polymerase Chain Reaction (PCR) - StatPearls - NCBI Bookshelf
Jul 7, 2025 · RT-PCR and real-time PCR may be used together to evaluate quantitative differences in gene expression across multiple samples. During the COVID-19 pandemic, RT …
Polymerase Chain Reaction (PCR) Test - eMedicineHealth
What is PCR (polymerase chain reaction) used for? As of June 2020, this is the standard test to diagnose the presence of the SARS CoV-2 coronavirus and COVID-19.
Polymerase Chain Reaction (PCR): Steps in This DNA Test
PCR (polymerase chain reaction) is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce …
PCR vs. rapid COVID-19 test: What’s the difference?
May 9, 2025 · There are two types of COVID-19 tests: the polymerase chain reaction (PCR) test and the antigen test, known as the rapid test. Both tests require a sample from the patient, …
Overview of Testing for SARS-CoV-2 | COVID-19 | CDC
Aug 29, 2024 · Nucleic acid amplification tests (NAATs) are highly sensitive and highly specific tests that detect one or more viral ribonucleic acid (RNA) genes. PCR tests are the most …
Polymerase Chain Reaction (PCR) Fact Sheet
Aug 17, 2020 · PCR is also valuable in a number of laboratory and clinical techniques, including DNA fingerprinting, detection of bacteria or viruses (particularly AIDS), and diagnosis of …
Comprehensive Guide to PCR Testing: Accuracy, Cost & Benefits
Discover the benefits of PCR testing for diagnosing infections like COVID-19, flu, and more. Learn how it works, its accuracy, and where to find a PCR test near you.