My son got an inconclusive result on COVID-19 test

Br

My son is not sick or showing any signs of COVID-19 he was tested because he was scheduled to get his tonsils removed this week but the doctor won't operate and we have to wait a month. I have to wait till tomorrow to schedule him to be retested at a different facility. The doctor wasn't too confident with the laboratory his facility uses. It all sounds like crap to me but I need other opinions on this. I've scheduled to be tested this Saturday btw.