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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 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 …

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

    May 9, 2025 · While a PCR test is the preferred method of detecting COVID-19, it must be done by a health care provider. These tests don’t produce immediate results, which means you may …

  5. 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, …

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

    Jul 31, 2024 · PCR tests are a fast, highly accurate way to diagnose certain infectious diseases and genetic changes. The tests work by finding the DNA or RNA of a pathogen..

  7. 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 …

  8. Understanding PCR Tests: How Do They Work? - theceoviews.com

    Jul 3, 2025 · What can it detect? PCR tests are one of the most commonly ordered pathology tests in the world. Healthcare professionals can perform one to diagnose and/or detect a range …

  9. Comprehensive Guide to PCR Testing: Accuracy, Cost & Benefits

    What Does a Polymerase Chain Reaction (PCR) Test Diagnose? Polymerase chain reaction (PCR) testing is a powerful diagnostic method used to detect genetic material from pathogens …

  10. PCR Testing Explained: Everything You Need to Know about this …

    Dec 12, 2023 · In science, PCR refers to amplifying DNA/RNA segments rapidly for analysis via polymerase enzymes and temperature-controlled thermal cycling. In a medical context, a …