Understanding the Different Types of COVID-19 Tests
2021年9月15日 · There are currently two primary types of COVID-19 tests being used to test patients for COVID-19: molecular tests (also known as nucleic acid, RNA or PCR tests) and rapid antigen tests.
COVID-19 diagnostic testing - Mayo Clinic
2024年7月18日 · 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.
Overview of Testing for SARS-CoV-2 | COVID-19 | CDC
2024年8月29日 · Nucleic acid amplification tests (NAATs) are highly sensitive and highly specific tests that detect one or more viral ribonucleic acid (RNA) genes. PCR tests are the most common type of NAAT used for COVID-19 testing. Viral RNA may stay in a person's body for up to 90 days after they test positive.
Molecular Tests - COVID-19 Testing Toolkit
Molecular tests amplify bits of viral RNA so that viral infection can be detected using a specialized test. These tests also are referred to as nucleic acid amplification tests (NAAT).
Nucleic acid test - Wikipedia
A nucleic acid test (NAT) is a technique used to detect a particular nucleic acid sequence and thus usually to detect and identify a particular species or subspecies of organism, often a virus or bacterium that acts as a pathogen in blood, tissue, urine, etc. NATs differ from other tests in that they detect genetic materials (RNA or DNA) rather ...
Nucleic Acid Amplification Tests (NAATs) | CDC - Centers for …
2023年5月12日 · A Nucleic Acid Amplification Test, or NAAT, is a type of viral diagnostic test for SARS-CoV-2, the virus that causes COVID-19.
Testing for COVID-19 | COVID-19 | CDC - Centers for Disease …
2024年8月24日 · Nucleic Acid Amplification Tests (NAATs) A healthcare professional administering a NAAT test. Nucleic acid amplification tests (NAATs), including PCR tests, are more likely to detect the virus than antigen tests. NAATs …
COVID-19 Test Basics | FDA - U.S. Food and Drug Administration
2023年9月7日 · There are two common types of COVID-19 diagnostic tests: Molecular tests, such as polymerase chain reaction (PCR) and other nucleic acid amplification tests (NAATs) tests, which detect...
Test Comparison: Understanding the Different COVID-19 Tests
2023年4月18日 · For some diagnostic tests, technicians perform a nucleic acid amplification test (NAAT). NAATs are effective because of their ability to detect very small concentrations of a virus that other tests might miss. One such test, called an rt-PCR test, uses a nasal swab to detect the presence of COVID-19.
Nucleic acid amplification tests (NAATs) - CDC Stacks
2021年5月14日 · Amplifying or increasing the copies of nucleic acids enables NAATs to detect very small amounts of SARS-CoV-2 RNA in a specimen, making these tests highly sensitive for diagnosing COVID-19.