The main feature of coronary care is the availability of telemetry or the continuous monitoring of the cardiac rhythm by electrocardiography.
One definition of a hook is a musical or lyrical phrase that stands out and is easily remembered. Definitions typically include some of the following: that a hook is repetitive, attention-grabbing, memorable, easy to dance to, and has commercial potential and lyrics. A hook has been defined as a part of a song, sometimes the title or key lyric line, that keeps recurring.
hook up with someone get together with, meet (up) with, join forces with, unite with He had just hooked up with Amelia. hook, line, and sinker (Informal) completely, totally, entirely, thoroughly, wholly, utterly, through and through, lock, stock and barrel We fell for it hook, line, and sinker.