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 look for …
What is a PCR test, and how does it work? - Medical News Today
Jan 29, 2024 · A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a …
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, usually a nasal …
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 small amounts of …
Polymerase Chain Reaction (PCR) Fact Sheet
Aug 17, 2020 · Sometimes called "molecular photocopying," the polymerase chain reaction (PCR) is a fast and inexpensive technique used to "amplify" - copy - small segments of DNA.
How does a PCR test work, and what is its purpose?
What is a PCR Test? PCR, which stands for Polymerase Chain Reaction, is a test used to detect specific genetic material in a sample. It works by amplifying small amounts of DNA or RNA, allowing …
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 (amplify) …