Midline catheters are typically used for therapies lasting how long?

• A. 2-4 weeks
• B. 6 months
• C. 1 year
• D. 1-2 days

Answer: (A)

Midline catheters are designed for intermediate-duration IV therapy. They provide longer-lasting access than a standard peripheral IV but are not intended for long-term central venous access. Because of this balance between durability and safety, their typical use period is about 2 to 4 weeks. Shorter use (1–2 days) is more appropriate for standard peripheral IVs, while months to a year of therapy would generally require a central line or another long-term device.