Two breathalyzer test, then a blood test that takes a few days to analyse.
I'm undergoing some heavy medical treatment that requires regular blood tests before each stage. Often there are 8-16 ampules taken. All test results are known within 90mins. And I'm not the only one there. A few days? Come on. Are there not machines for auto-festing? There are for many other blood parameters. Keeping someone in clink for days while a (I suppose) simple blood test is done seems OTT.