What are three methods of injecting drugs intermittently?

The correct answer identifies methods for administering medications through an intravenous (IV) system that allow for intermittent dosing. Sideports, saline locks, and solusets are all techniques associated with IV therapy.

A sideport, often found on IV tubing, allows for the addition of medications into an existing IV line without disrupting the infusion, facilitating quick and direct drug delivery. A saline lock is a device used to keep a vein accessible for future medications or fluids without requiring continuous fluid infusion, allowing drugs to be administered quickly and easily when necessary. Solusets are pre-packaged systems that enable healthcare providers to quickly and safely administer medications in a controlled manner.

In contrast, the other choices refer to different methods or types of administration but do not specifically highlight techniques for intermittent drug injection through an IV line in the context provided. Other methods like IV push and IM injections are valid routes of administration, but they do not encompass the concept of "intermittently" within IV therapy in the same way. Similarly, infusion, bolus, and drip refer to types of fluid administration rather than specific methods associated with intermittent injections. Direct injection and slow infusion do not accurately reflect the systematic interval administration of medications in an IV context, nor do patches fit within standard IV therapy practices