Nasopharyngeal / Oropharyngeal Swab

The COVID-19 antigen rapid test device is a lateral flow in-vitro immunoassay intended to be used for the qualitative detection of the SARS-CoV-2 viral nucleoprotein. This device will detect both viable and nonviable virus in both nasopharyngeal and oropharyngeal secretions. 

The test has 5 easy steps:

Result Interpretation:

Knowing the ideal time for testing:

detection window chart covid testing antibody antigen pcr barrie ontario

Clinical Data:


  1. The colour intensity in the test region (T) may vary depending on the concentration of analytes present in the specimen. Therefore, any shade of color in the test region should be considered positive. Note that this is a qualitative test only and cannot determine the concentration of analytes in the specimen.
  2. Insufficient specimen volume, incorrect operating procedure or expired tests are the most likely reasons for control band failure.
  3. This test is intended for professional use only and  should not be used as the sole basis for the diagnosis  of an infection.