Why rt pcr test takes time – why rt pcr test takes time:
The real time RT–PCR technique is highly sensitive and specific and can deliver a reliable diagnosis in about three to four hours. Positive test result is highly confirmatory, as dual test our done before reporting, first at the time of screening and then for confirmation. Jan 14, · The actual PCR component (the thermal cycling to create a chain reaction with polymerase to amplify genetic material if present) takes about a hour. (A minute or so for each cycle, with 40 cycles being a typical number of cycles to perform). That is the “fastest” one could get PCR results if you took a sample directly to a lab and had. Apr 14, · As a result, RT-PCR test repetition over time or on different samples can increase the overall sensitivity of the test. Therefore alternative RT-PCR tests which are simpler, less expensive, and easier to conduct are under investigation.
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Steps were taken to declare real-time polymerase chain reaction (RT-PCR) test results within 24 hours in the district, said Collector C. Antigen test: This detects bits of proteins on the surface of the virus called antigens. Antigen tests typically take only 15 to 30 minutes.