Psa test

Hello there I’m frantically asking for some clarity. My Dad has just phoned. He’s been for a psa test today after having one 18 months ago where there found cancerous levels but not so high as to do anything with at the time.

His test was at 10 this morning, he then had a call from the Drs surgery asking him to go in tomorrow to discuss his psa results. Are they able to turn around results so quickly in a day? He is beside himself with worry. Thank you for any help.