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Nucleic acid tests have high sensitivity for detecting HIV infection in persons not taking antiretrovirals. For specimens with confirmed detectable HIV RNA, the sensitivity of each nucleic acid test is >99%, meaning that HIV is detected more than 99% of the time.
Nucleic acid test (NAT) A NAT looks for the actual virus in the blood. With a NAT, the health care provider will draw blood from your vein and send the sample to a lab for testing. This test can tell if a person has HIV or how much virus is present in the blood (HIV viral load test). A NAT can detect HIV sooner than other types of tests.
There are three types of HIV tests: nucleic acid tests (NAT), antigen/antibody tests, and antibody tests, and they all have different window periods: Nucleic Acid Test (NAT) —A NAT can usually tell if you have HIV infection 10 to 33 days after exposure.
The presence of HIV-1 nucleic acid in the plasma or serum of individuals without antibodies to HIV-1 is indicative of acute or primary Infection. As a supplemental test to confirm HIV-1 infections when reactive screening assays.
Nucleic acid (NAT) test: The NAT test can detect HIV RNA, the genetic material in HIV. The test can also tell how much of the virus is in your blood (viral load). The NAT is a thorough lab test requiring a blood draw (a healthcare provider draws blood from a vein). It can be expensive.
The HIV RNA test is a type of nucleic acid test (NAT). NATs are blood tests used to detect the genetic material of viruses and bacteria in your blood. They’re sometimes used to screen blood...
Qualitative testing (commonly referred to as nucleic acid testing or NAT) is used as a screening test to identify HIV-infected individuals, such as screening possible blood donors.
You may not show a positive result on an antibody test until 3 to 12 weeks after you've been exposed to HIV. Nucleic acid tests (NATs). These tests look for the virus in your blood, called viral load.
HIV Nucleic Acid Diagnostic Laboratory Tests. In the United States, HIV nucleic acid tests, including qualitative HIV RNA and quantitative HIV RNA assays, are used as part of the HIV diagnostic algorithm.
Provides updated recommendations for HIV testing by laboratories in the United States and describes approaches for reporting test results to persons ordering HIV tests and to public health authorities. *New Update* Technical Update for HIV Nucleic Acid Tests Approved for Diagnostic Purposes, May 2023.