“I just did a covid home test and it came back positive?”
Female | 48 years old
Complaint duration: 7 days
6 Answers
InfectiousDiseaseSpecialistInfectiousDiseaseSpecialist
Very common question - any test can have errors (either false positive OR false negative). But all labs are required to test their own test using known controls of a true positive and true negative in order to get FDA (Federal Drug Administration) approval for EUA (Emergency Use Authorization). The FDA grants EUA if the company seeking approval demonstrates the
appropriate level of sensitivity to detect COVID-19. So, these home test kits are 'antigen' tests that have been shown to be pretty good at detecting COVID-19, so in general - if your test is (+), you have COVID-19 even though you do not have all the symptoms. In fact, it is well-known there are asymptomatic (no symptoms) carriers who do not wear a mask and unknowingly spreads the virus to more vulnerable people like those over 60 years old or who those have medical conditions that make them sicker if they catch COVID-19. Also, the symptoms of COVID-19 start like the common cold (and even like allergies), which is why one must get tested to find out what they have.
Now, if one's Home COVID test is (-), it can be a false negative if test is taken too early in the illness. The guidelines recommend if one has no symptoms, but has had close contact with someone who is confirmed (+), then that exposed person should quarantine at home and be tested with a PCR test.