The patient is admitted to the cardiac unit. Everyone admitted to the cardiac unit will have an EKG done unless otherwise ordered. This is an example of which type of order?

Choice A reason: PRN is as needed; EKGs here are routine, not symptom-driven, making this inapplicable to a standard admission protocol for all patients. Choice B reason: One-time is a single event; this order applies to all admissions ongoing, not a one-off, distinguishing it from limited-duration directives. Choice C reason: STAT is immediate; routine EKGs aren’t urgent, occurring as part of standard care, not requiring the priority of acute intervention orders. Choice D reason: Standing orders apply automatically to all qualifying patients; this EKG protocol fits, ensuring consistent cardiac assessment unless overridden.