How long should I expect it to take to get results for PCR saliva tests? May 04, 2021 00:56 Updated Samples typically arrive at the lab the day after testing. Once the sample has been received by the lab, results are generally returned within 72 hours. If you have any questions, please visit the Support Center or submit a Support Ticket. Related articles Why don’t I have results yet for PCR saliva tests? What does a positive result mean for PCR saliva tests? What should I do if I get a positive result? What is the process for taking a saliva PCR test? At-Home Saliva PCR Test Questions What does an indeterminate result mean for PCR saliva tests?