PCR Test - what is it and how the test is done
The Polymerase Chain Reaction (PCR) test for Covid is a test that helps analyse whether a person is suffering from Covid infection or not.
The PCR Test for Covid is so far considered to be the gold standard for the detection of the virus itself. It is a very reliable and authentic test popularly used to test people worldwide.
This test is a molecular test that works on the principle of detecting the RNA that causes Covid.
It is performed by taking a nasopharyngeal swab inserted deep into the nasal cavity to collect the sample. The collected sample from the swab is then manipulated to extract its genetic material.
Suppose the sample contains the required genetic material (RNA). In that case, it is said to be a positive sample; thus, the person is labelled as a COVID-positive patient.
It is usually recommended that a person gets their PCR test done if they have developed any of the following symptoms:
- Fever with chills
- Shortness of breath
- Muscular or body aches
- Loss of taste or smell
- Nausea or vomiting.