RT-PCR Test:
As of now, Reverse Transcription Polymerase Chain Reaction (RT-PCR) test is the most recommended one for tracing the infection in individuals suffering from influenza-like symptoms. This particular lab test has a specificity rate – meaning it can identify individuals without disease of nearly 100 percent and a sensitivity rate – the ability to identify those with COVID-19 by 67 percent. However, if the sample is not collected properly by a professionally trained lab technician, the result can give a false negative.
RT-PCR test uses Real-Time Reverse Transcriptase (RT)-PCR Diagnostic Panels for detecting the presence of viral RNA and is quite accurate. The swab samples are analyzed for reagents to identify the presence of the virus. This test can detect the virus even before the emergence of symptoms and aid in isolation, preventing the further spread of infection.
If the test turns out positive, the patient is required to follow all COVID-19 protocols, including self-isolation, taking recommended medications, eating healthy, checking for vitals including oxygen saturation.
Rapid Antigen Test:
The rapid antigen test comes in handy only while detecting patients who are quite symptomatic. It is also done by collecting samples from the nose or throat with a swab. Though the results can be revealed within 30 minutes, this test is not considered accurate, as it may not read into vital proteins that are part of Coronavirus at the initial stages.
Even if your rapid antigen test turns negative, the doctors might recommend you wait for a couple of days, before confirming the presence of infection. If you happen to notice the symptoms of COVID-19, go for an RT-PCR test for better results.
Doctors opine that in certain cases, the rapid antigen test needs to be backed by RT-PCR to completely rule out the possibility of infection.
