Can I get a false positive result from a Lyme disease test?

There are always some tests for Lyme disease that are positive, and you see no evidence of Lyme. The person doesn’t seem to have had Lyme before. They don’t have a rash. They’re not ill. In that case, I work with them and evaluate  whether they should be treated for a limited period, like three to four weeks, just in case there’s a tick-borne illness present. Yes, it could be a false positive, but I’d hate to have it turn into a true positive over time. Other doctors might choose to wait.