What is a characteristic feature of a midline peripheral catheter?

A midline peripheral catheter is typically characterized by its length, which ranges from approximately 3 to 8 inches. This specific length allows it to be inserted into a peripheral vein and can extend into the larger veins but does not reach the central circulation as central lines do. This length is crucial for its intended use, which is generally for medium-term vascular access, typically for durations longer than typical peripheral IVs but shorter than central line placements.

This distinction in length helps differentiate it from other types of vascular access devices. Midline catheters are ideal for administering medications, fluids, and for drawing blood, making them versatile for various clinical situations while still offering advantages such as reduced risk of infection compared to longer-term central venous access devices.