How does the PCR COVID-19 swab test work? - PowerPoint PPT Presentation

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How does the PCR COVID-19 swab test work?

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These tests are used to directly screen for the presence of viral RNA, which will be detachable in the body before antibodies form or the symptoms of the disease are present. You can have a PCR COVID-19 swab test same-day done at Claret Diagnostics. – PowerPoint PPT presentation

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Title: How does the PCR COVID-19 swab test work?


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  How does the PCR COVID-19 swab test work?
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  • The PCR COVID-19 swab test is the most accurate,
    reliable test for diagnosing COVID-19. These
    tests are used to directly screen for the
    presence of viral RNA, which will be detachable
    in the body before antibodies form or the
    symptoms of the disease are present. You can have
    a PCR COVID-19 swab test same-day done at Claret
    Diagnostics. 

3
What is PCR testing?
  • During PCR testing, elements known as reverse
    transcriptase or DNA polymerase are added to a
    nasopharyngeal sample in the lab. These elements
    work to make various copies of any viral RNA that
    may be presentthese numerous copies of RNA help
    signal a positive result. 

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 How does a COVID-19 PCR test works?
  • Sample collection is done using a swab to collect
    respiratory substance detected in the nose. A
    swab includes a long soft tip on a long, flexible
    stick inserted into the nose. 
  • After receiving the swab sample, the laboratory
    expert performs a process called extraction,
    which isolates genetic material from the sample,
    including genetic material from any virus that
    may be present. 
  • After the extraction process, experts use special
    chemicals and a PCR machine, called a thermal
    cycler. It causes a reaction that creates
    millions of copies of a small portion of the
    SARS-CoV-2 virus's genetic material.

5
  • At Claret Diagnostics, we provide various
    COVID-19 tests. Book your appointment online to
    have a PCR COVID-19 swab test same day. 
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