Sorry I missed your query. In Uk a ‘stress test’ tends to be name for adrenal/ cortisol testing, not tilt table test. If it’s the TTT one you are enquiring about then it’s easy, patient doesn’t have to do anything, just keep calm. The dr.and technician were engrossed in the test recordings, I just said at appropriate time ‘ I’d be asking to sit down now’ (as Bp slumped to 61/40 after 8 mins.), and was told ‘Not surprising’. Not given any drugs before / during, just water afterwards. So nothing to be worried about.