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Clinical Care & Specialties

Intravenous (IV)

Intravenous: a route of administration delivering fluids, medications, or nutrients directly into a vein for rapid, controlled effect. IV access is standard for anesthesia, hydration, and drug delivery during ambulatory surgical and procedural care.

What does intravenous (IV) mean?

Intravenous (IV) describes a route of administration in which fluids, medications, or nutrients are delivered directly into a vein. Because the substance enters the bloodstream immediately, this route offers rapid onset and precise control over dosing.

An IV is established by placing a thin catheter into a vein, most often in the arm or hand. Once access is in place, clinicians can give a steady infusion or a single dose as the situation requires.

Why is IV access important in surgical and procedural care?

Intravenous access is a standard part of anesthesia, hydration, and medication delivery during surgery and other procedures. Having a reliable line in place lets the care team respond quickly if a patient's condition changes mid-procedure.

In ambulatory settings, IV access supports the fast-moving rhythm of same-day surgery, where patients are prepped, treated, and recovered within hours. It provides a controlled channel for anesthesia, antibiotics, and fluids throughout that window.

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