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  1. 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 …

  2. 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 …

  3. PCR vs. rapid COVID-19 test: What’s the difference?

    May 9, 2025 · The PCR test takes a sample of ribonucleic acid (RNA) and “amplifies” it with the help of lab technologies. Amplifying RNA helps to make even small traces of the COVID-19 …

  4. 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 …

  5. 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.

  6. 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, …

  7. 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 …

  8. What is PCR? Types, Tests, and Applications Explained

    Feb 19, 2025 · A Polymerase Chain Reaction test detects specific DNA or RNA sequences and is widely used to diagnose infections, genetic disorders, and certain types of cancer. By …

  9. What is a PCR test, and how does it work - healthandmedic.com

    Jul 31, 2024 · PCR test involves using short synthetic DNA fragments called primers to select a segment of the genome to be amplified, and then multiple rounds of DNA synthesis to amplify …

  10. 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 …