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PCR Test: What It Is, How It Works Results - Cleveland Clinic A PCR (polymerase chain reaction) test is a way for healthcare providers to diagnose illnesses or look for gene changes using small amounts of genetic material Learn more about PCR, the technique scientists use to detect gene changes and diagnose infectious diseases like COVID-19
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 genetic material of a pathogen (disease-causing organism) or abnormal cells in a sample of your blood, saliva, mucus, or tissue
Polymerase Chain Reaction (PCR) - StatPearls - NCBI Bookshelf PCR is widely used in diagnosing bacterial and viral infections and in screening for genetic disorders due to its high sensitivity, making it the gold standard testing procedure for numerous samples
COVID-19 diagnostic testing - Mayo Clinic Polymerase chain reaction tests, shortened to PCR tests, are molecular tests The lab technique used is called reverse transcription polymerase chain reaction, shortened to RT-PCR You also may see this type of test called an NAAT test, short for nucleic acid amplification test
PCR vs. rapid COVID-19 test: What’s the difference? 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 swab The PCR test takes a sample of ribonucleic acid (RNA) and “amplifies” it with the help of lab technologies
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 examination in criminal justice and archaeology