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Antigen tests* are rapid tests that usually produce results in 15-30 minutes. Positive results are very accurate and reliable. However, in general, antigen tests are less likely to detect the virus than PCR tests, especially when symptoms are not present. Therefore, a single negative antigen test cannot rule out infection.

Rapid and PCR Tests (Nasal Swab) Detects if you are actively infected with the COVID-19 virus. The Serum Antibody IgG Test (Blood Test) Detects if you have had prior exposure to COVID-19 or a COVID-19 infection and your body has built up antibodies for the virus.

NOTE TO TRAVELERS IN NEED OF A COVID-19 TEST: We are no longer accepting insurance for travel patients. All travel COVID-19 tests are $255. All travel patients will receive a physical copy of results in 15 minutes for either the Molecular NAAT or Antigen test. If you are in need of a RT-PCR test, those results take 1-3 days and will be emailed.

COVID-19 Diagnostic Tests Sometimes referred to as a PCR test or a nucleic acid amplification test (NAAT), these tests require a sample from the upper respiratory tract, typically a swab obtained from the nose. The sample is then tested for the presence of viral RNA.

What is the COVID-19 RT-PCR NAAT test? The RT-PCR test is a polymerase chain reaction type of NAAT test (or Nucleic Acid Amplification Test). It can detect RNA from the SARS-COV-2 virus that causes COVID-19. This is different from the 15-minute rapid antigen test and the COVID-19 antibody test.

April 22, 2006. #9. Posted May 29, 2022. Suggestion: Go to your closest Walgreens that offer the rapid NAAT. At the pharmacy, ask for the manufacturer and exact test name on the label. Go home and find the information on the internet for that specific test. You can then decide if it fits Carnival's criteria.