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Understanding tests for Coronavirus: Medico’s Advice Part 4
In part 4 of his video, Dr. Neelabh, a renowned consultant practitioner in New Delhi, tells us about the different tests for Coronavirus and their implications in layman’s term. Dr. Neelabh did his MBBS in 1990 from Patna Medical College Hospital, Patna and PG from Kasturba Gandhi Medical College, Lucknow. The video is in Hindi -Editor
इस वीडियो में जाने माने चिकित्सक डॉ. नीलाभ कोरोना वायरस की पुष्टि के लिए विभिन्न प्रकार की जांच और उनके प्रभाव के बारे में आम भाषा में बता रहे हैं ताकि एक आम नागरिक इसे समझ सके । यह वीडियो हिंदी में है – सम्पादक
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Also see: Medico’s Advice Part 3: How to avoid contacting Corona
Different Types of Coronavirus Tests
| Molecular Test | Antigen Test | Antibody Test | |
|---|---|---|---|
| Also known as… | Diagnostic test, viral test, molecular test, nucleic acid amplification tests (NAAT), RT-PCR tests | Rapid diagnostic test
(Some molecular tests are also rapid tests.) |
Serological test, serology, blood test, serology test |
| How the sample is taken… | Nasal or throat swab (most tests)
Saliva (a few tests) |
Nasal or throat swab | Finger stick or blood draw |
| How long it takes to get results… | Same day (some locations)
or up to a week |
One hour or less | Same day (many locations)
or 1-3 days |
| Is another test needed… | This test is typically highly accurate and usually does not need to be repeated. | Positive results are usually highly accurate but negative results may need to be confirmed with a molecular test. | Sometimes a second antibody test is needed for accurate results. |
| What it shows… | Diagnoses active coronavirus infection | Diagnoses active coronavirus infection | Shows if you’ve been infected by coronavirus in the past |
| What it can’t do… | Show if you ever had COVID-19 or were infected with the coronavirus in the past | Definitively rule out active coronavirus infection. Antigen tests are more likely to miss an active coronavirus infection compared to molecular tests. Your health care provider may order a molecular test if your antigen test shows a negative result but you have symptoms of COVID-19. | Diagnose active coronavirus infection at the time of the test or show that you do not have COVID-19 |
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