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intravenous infusion

   Also found in: Dictionary/thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
intravenous infusion,
1 a solution administered into a vein through an infusion set that includes a plastic or glass vacuum bottle or bag containing the solution and tubing connecting the bottle to a catheter or a needle in the patient's vein.
2 the process of administering a solution intravenously. Swelling of the limb around and distal to the site of injection may indicate that the tip of the catheter or needle is in the subcutaneous tissue and not in the vein. The fluid may be infiltrating the tissue spaces. It should be withdrawn and the limb elevated. Redness, swelling, heat, and pain around the vein at the site of injection or proximal to it may indicate thrombophlebitis. The infusion should be discontinued and the inflammatory condition treated. The infusion is usually begun again at another site. See also venipuncture.

infusion [in-fu´zhun]
1. the steeping of a substance in water to obtain its soluble principles.
2. the product obtained by this process.
3. the slow therapeutic introduction of fluid other than blood into a vein.
intravenous infusion see intravenous infusion.
subcutaneous infusion hypodermoclysis.

intravenous [in″trah-ve´nus]
within a vein.
intravenous infusion administration of fluids into a vein by means of a steel needle or plastic catheter. This method of fluid replacement is used most often to maintain fluid and electrolyte balance, or to correct fluid volume deficits after excessive loss of body fluids, in patients unable to take sufficient volumes orally. An additional use is for prolonged nutritional support of patients with gastrointestinal dysfunction (total parenteral nutrition).

Besides these uses, many medications are administered by intravenous infusion. A piggyback intravenous infusion is the intermittent delivery of an additional fluid or medication through the primary intravenous line from a second source of fluid with a secondary set of intravenous tubing.
Piggyback intravenous infusion set.
A push intravenous infusion is the direct injection of medication into a vein through an intravenous line, needle, or catheter.

Manufacturers' instructions must be followed for preparation and administration of all such medications. The fluid to be infused and the flow rate are by prescription. With intravenous infusions of medication, the danger of drug incompatibility is very real. Incompatibility charts are not entirely reliable as sources of information about chemical interaction of drug additives combined in an intravenous infusion. For this reason admixing should be done by a clinical pharmacologist. Intravenous antibiotics should be mixed only with electrolytes. Because of their local irritating effects on the vein, doses of potassium chloride and dextrose solutions with a concentration higher than 10 per cent should not be given through a peripheral vein. Unless otherwise directed by the manufacturer, it is best to dilute all intravenous medications before administering them. When medications must be reconstituted with a solvent or removed from a glass ampule, a transfer filter should be used to filter out particulate matter. Once medications have been added to an intravenous solution the container should be checked every 30 minutes. A flowmeter is applied to the container of fluid and set to maintain the desired rate of flow. Infusion pumps are used and maintained according to hospital policy.

intravenous
within a vein.

intravenous feeding
see intravenous infusion (below).
intravenous infusion
administration of fluids through a vein; called also phleboclysis, venoclysis and intravenous feeding. This method of feeding is used most often when a patient is suffering from severe dehydration and does not drink fluids because it is unconscious, recovering from an operation, unable to swallow normally, or vomiting persistently. Prolonged feeding of patients with chronic intestinal dysfunction can be accomplished by total parenteral nutrition.
intravenous pyelography


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Thirty-four adults with fibromyalgia were randomly assigned to receive, in double-blind fashion, weekly intravenous infusions of vitamins and minerals or placebo (Lactated Ringer's solution) for eight weeks.
Wu added that: "Looking into the second half of the year, the Group is to continue to consolidate its leading role of macrolides antibiotics, strengthen intravenous infusion segment, boost the sales of general medicines and privileged brands, speed up the launches and enhance the sales of OTC and healthcare products.
Wu added that: "Looking intothe second half of the year, the Group is to continue to consolidate its leading role of macrolides antibiotics, strengthen intravenous infusion segment, boost the sales of general medicines and privileged brands, speed up the launches and enhance the sales of OTC and healthcare products.
 
 
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