Standard IV lines are typically used for short-term needs. For instance, they may be used during a short hospital stay to administer medication during surgery or to give pain medications, nausea medications, or antibiotics. A standard IV line can typically be used for up to 4 days.

IV infusion

An IV infusion is a controlled administration of medication into bloodstream over time. The two main methods of IV infusion use either gravity or a pump :Infusion Pump
The pump infusion is the most common method used. The pump is attached to IV line and sends medication and a solution, such as sterile saline, into Cannula in a slow, steady manner. Pumps may be used when the medication dosage must be precise and controlled.Drip infusion
This method uses gravity to deliver a constant amount of medication over a set period of time. With a drip, the medication and solution drip from a bag through a tube and into Cannula.

Importance of intravenous fluid regulation

Rehydration after becoming dehydratedTreatment of an infection using antibioticsCancer treatment through chemotherapy drugsManagement of pain using certain medications
Fluids for such treatments consist of water with electrolytes, sugar, or medications added in concentrations that depend on the need.
The rate and quantity of intravenous fluid given depends on medical condition, body size, and age. Regulation ensures the correct amount of fluid drips from a bag down the IV into vein at the correct rate. Complications can result from receiving too much too quickly, or not enough too slowly.