Sometimes the results are inconclusive or not clear, and the test cannot tell you if your results are positive or negative.

If the display on the self-test shows an invalid result or a test error, the test did not work properly. If this happens, refer to the instructions for use in the package insert and contact the manufacturer for assistance.

Invalid results can occur for many reasons. Your specimen may not have been collected correctly, or the testing instrument may have malfunctioned. Invalid test results are rare but can occur.

Regardless of what your test results are, you should always review the results with a healthcare provider. The healthcare provider will consider the test result together with your symptoms and possible exposure in deciding how to care for you.