RT-PCR. A laboratory method used to make many copies of a specific genetic sequence for analysis. It uses an enzyme called reverse transcriptase to change a specific piece of RNA into a matching piece of DNA. This piece of DNA is then amplified (made in large numbers) by another enzyme called DNA polymerase.

RT-PCR is used in research laboratories to study gene expression, for example in experiments to distinguish exons from introns, and can be used clinically to diagnose genetic diseases and monitor drug therapy. RT-PCR requires an RNA template, enzyme, nucleotides, buffers and thermo cyclers to produce RT-PCR products.

The diagnostic value of RT-PCR of amniotic fluid (AF) for prenatal diagnosis of congenital rubella virus infection in 45 pregnant women with confirmed primary infection was assessed. Specificity of RT-PCR was 100% and sensitivity ranged between 83 and 95%.

The performance of polymerase chain reaction (PCR) analysis of the amniotic fluid of pregnant women with recent serological toxoplasmosis diagnoses for the diagnosis of fetal toxoplasmosis.

This is also use to diagnose covid -19The COVID-19 RT-PCR test is a real-time reverse transcription polymerase chain reaction (rRT-PCR) test for the qualitative detection of nucleic acid from SARS-CoV-2 in upper and lower respiratory specimens (such as nasopharyngeal or oropharyngeal swabs, sputum, lower respiratory tract aspirates, bronchoalveolar lavage.

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