Not sure why you would take it if asymptomatic (assuming you aren't an essential health worker), unless you were told to either as part of a random sample study

Not sure why you would take it if asymptomatic (assuming you aren't an essential health worker), unless you were told to either as part of a random sample study, or because a contact tracing effort told you you were at risk. If you take it while symptomatic, I believe the sensitivity is improved, so if it comes back negative, you can be pretty assured that you just have a regular cold, right?