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 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 - Wikipedia
The polymerase chain reaction (PCR) is a laboratory method widely used to amplify copies of specific DNA sequences rapidly, to enable detailed study. PCR was invented in 1983 by American …
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) …
Comprehensive Guide to PCR Testing: Accuracy, Cost & Benefits
What is a Polymerase Chain Reaction (PCR) Test? The polymerase chain reaction (PCR) test is a highly sensitive and precise diagnostic tool designed to detect specific genetic material in a sample. …
Polymerase Chain Reaction (PCR) Test - eMedicineHealth
Polymerase chain reaction (PCR) is a chemical reaction harnessed to detect and identify trace bits of DNA, whether from a virus or bacteria to study the organism or diagnose an infection, or for forensic …
What Are PCR Diagnostics and How Do They Work?
Jul 24, 2025 · PCR diagnostics use the polymerase chain reaction to detect and amplify specific genetic material (DNA or RNA) from a sample. Its core purpose is to generate millions of copies of a targeted …