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Rotavirus. 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 than antigens or antibodies.
The Xpert MTB/RIF is a cartridge-based nucleic acid amplification test (NAAT) for rapid tuberculosis diagnosis and rapid antibiotic sensitivity test.It is an automated diagnostic test that can identify Mycobacterium tuberculosis (MTB) DNA and resistance to rifampicin (RIF).
A 2010 review study by Puren et al. [2] categorizes viral load testing into three types: (1) nucleic acid amplification based tests (NATs or NAATs) commercially available in the United States with Food and Drug Administration (FDA) approval, or on the market in the European Economic Area (EEA) with the CE marking; (2) "Home–brew" or in-house NATs; (3) non-nucleic acid-based test.
Nucleic acid amplification tests (NAAT) for TB are a heterogeneous group of tests that use either the polymerase chain reaction (PCR) technique or transcription-mediated amplification (TMA) or other forms of nucleic acid amplification methods to detect mycobacterial nucleic acid. These tests vary in which nucleic acid sequence they detect and ...
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After ruling out other concerning pathologies if suspicion is high, the workup for Fitz-Hugh–Curtis syndrome involves testing for sexually transmitted diseases (Chlamydia and Gonorrhea) with nucleic acid amplification tests (NAATs) from a cervical swab sample. If indicated, urethral, rectal, and/or pharyngeal swabs may be obtained as well.
Antigen tests are generally less sensitive than real-time reverse transcription polymerase chain reaction (RT-PCR) and other nucleic acid amplification tests (NAATs). [15] Antigen tests may be one way to scale up testing to much greater levels. [56] Isothermal nucleic acid amplification tests can process only one sample at a time per machine.
Nucleic acid amplification tests (NAATs) tests find the genetic material (DNA) of Chlamydia bacteria. These tests are the most sensitive tests available, meaning they are very accurate and are unlikely to have false-negative test results. A polymerase chain reaction (PCR) test is an example of a nucleic acid amplification test. This test can ...