Intravenous therapy
Intravenous Therapy
Intravenous therapy (pronounced: /ɪntrəˈviːnəs/), often abbreviated as IV therapy, is a medical technique that delivers fluids, medications, and nutrients directly into a person's vein. The intravenous route of administration is commonly used in hospitals and other healthcare settings to treat patients who are dehydrated or unable to take medications orally.
Etymology
The term "intravenous" is derived from the Latin words "intra," meaning "within," and "vena," meaning "vein." Thus, "intravenous" literally means "within the vein."
Procedure
Intravenous therapy involves the insertion of a sterile cannula into a vein, usually in the arm or hand. The cannula is connected to a bag containing the fluid, medication, or nutrient to be administered. The rate of administration is controlled by a drip chamber or an electronic infusion pump.
Types of Intravenous Therapy
There are several types of intravenous therapy, including:
- Fluid replacement therapy: Used to treat dehydration or electrolyte imbalances.
- Chemotherapy: Used to deliver cancer-fighting drugs.
- Blood transfusion: Used to replace lost blood.
- Parenteral nutrition: Used to provide nutrients to patients who cannot eat or absorb nutrients from food.
Risks and Complications
While intravenous therapy is generally safe, it can sometimes lead to complications such as infection, phlebitis (inflammation of the vein), or air embolism (air entering the bloodstream).
Related Terms
- Venipuncture: The process of puncturing a vein, usually to draw blood or administer intravenous therapy.
- Infusion pump: A device that controls the rate of fluid administration in intravenous therapy.
- Cannula: A thin tube inserted into a vein or body cavity to administer medication, drain off fluid, or insert a surgical instrument.
External links
- Medical encyclopedia article on Intravenous therapy
- Wikipedia's article - Intravenous therapy
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