SARS-CoV-2 Neutralizing Antibody Rapid Test (colloidal gold)
test method
For Venous Whole blood samples: The operator uses a disposable dropper to absorb 50ul whole blood sample, drop it into the sample hole on the test card, and immediately add 1 drop of whole blood buffer to the sample hole.
Negative result
if there is only a quality control line C, the detection line is colorless, indicating that SARS-CoV-2 antigen has not been detected and the result is negative.
Negative result indicates that the content of the SARS-CoV-2 antigen in the sample is below the limit of detection or no antigen. Negative results should be treated as presumptive, and do not rule out SARS-CoV-2 infection and should not be used as the sole basis for treatment or patient management decisions, including infection control decisions. Negative results should be considered in the context of a patient’s recent exposures, history, and the presence of clinical signs and symptoms consistent with COVID-19, and confirmed with a molecular assay, if necessary, for patient management.
Positive result
if both the quality control line C and the detection line appear, SARS-CoV-2 antigen has been detected and the result is positive for antigen.
The positive results indicate the existence of SARS-CoV-2 antigen. It should be further diagnosed by combining the patient’s history and other diagnostic information. The Positive results do not rule out bacterial infection or co-infection with other viruses. Pathogens detected are not necessarily the main cause of disease symptoms.
Invalid result
If the quality control line C is not observed, it will be invalid regardless of whether there is detection line (as shown in the figure below), and the test shall be conducted again.
The invalid result indicates that the procedure is not correct or that the test kit is out of date or invalid. In this case, the package insert should be read carefully and repeat the test with a new test device. If the problem persists, discontinue using the test kit of this Lot number immediately and contact your local distributor.
