rapid antigen test

rapid antigen test

Any laboratory test used to quickly identify the presence of a specific antigen in a body fluid sample.

Patient care

Rapid antigen tests are used to confirm diagnostic impressions or to screen large numbers of patients quickly for the possibility of infection. In rapid HIV antigen tests, a positive test is not considered definitive for infection: it requires confirmation with blood tests (serology). In screening for streptococcal pharyngitis (strep throat), clinicians often consider the test as adequate for immediate treatment even though false positive and negative results can occur.

Synonym: rapid antigen detection test
References in periodicals archive ?
The investigators performed throat cultures and rapid antigen tests and used clinical information to derive a clinical prediction score in each of 787 patients, aged 3-69 years, who presented with acute sore throat.
Molecular methodologies deliver the best opportunity to detect this influenza variant by nucleic acid sequence detection, whereas the CDC has shown that several rapid antigen tests fail to detect this variant influenza virus.
On the other hand, commercially available rapid antigen tests such as Directigen Flu A+B (Becton Dickinson, Sparks, NJ, USA) or Binax NOW (Binax Inc.
The overall sensitivity of rapid antigen tests for group A streptococcus has declined in recent years.
Comparison of a rapid antigen test with nucleic acid testing during cocirculation of pandemic influenza A/H1N1 2009 and seasonal influenza A/H3N2.
The approval of our PDL CWD Rapid Antigen Test is a significant milestone for our company and represents the first of many approvals we expect to receive during the coming year," said David S.
4) In the pediatric study by Geiseker, et al, a single rapid antigen test had a sensitivity of 87.
If such rapid antigen tests are used as a first-line diagnostic modality, it is recommended that negative results be confirmed by a more sensitive method such as culture or polymerase chain reaction.
The D3 FastPoint L-DFA RSV/MPV Identification Kit will allow laboratories to identify respiratory syncytial virus and metapneumovirus infections in the same timeframe as currently available point-of-care rapid antigen tests, which generally do not include MPV testing options.
Lack of sensitivity of rapid antigen tests for the diagnosis of respiratory syncytial virus infections in adults.
The D3 FastPoint L-DFA Influenza A/ Influenza B Virus Identification Kit will allow laboratories to identify influenza A virus and influenza B virus infections in the same timeframe as currently available point-of-care rapid antigen tests.
2) In this study, which was carried out during the 2009 Influenza A/H1N1 (swine flu) outbreak in New York, 1,382 patient samples were initially tested with a variety of methods including rapid antigen tests, direct immunofluorescence, and rapid virus culture.

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