premise: What does the FAST acronym mean to a first aid technician?
hypothesis: F.A.S.T. is an acronym to describe the method of testing and detection if a person is or might soon suffer a stroke. F for facial drooping, A for arm weakness, S for speech related difficulties, and T for Time to call emergency services. This easy to remember set of things to check is designed to mitigate serious injury from untreated stroke.