Intravenous Infusion: Types and Uses

Intravenous (IV) Infusion Definition IV infusion is the administration of fluids, medications, or nutrients directly into a vein through a catheter for therapeutic or diagnostic purposes. Types of IV Infusions Continuous Infusion: A steady flow of fluid over time (e.g., normal saline for hydration). Intermittent Infusion : Given at intervals, often via an IV push or piggyback (e.g., antibiotics). Bolus Injection: A single, large dose administered rapidly (e.g., emergency drugs like epinephrine). Patient-Controlled Analgesia (PCA): Allows patients to self-administer controlled doses of pain medication. IV Fluids Classification: Crystalloids : Small molecules that pass easily through membranes (e.g., normal saline, lactated Ringer’s). Colloids : Larger molecules that stay in circulation longer, drawing fluid into vessels (e.g., albumin, dextran). Blood Products : Includes whole blood, packed RBCs, platelets, and plasma. Parenteral Nutrition : Used when oral/enteral feeding is not possible (e.g., total p…