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Dictionary · Drug

dextrose 5% in water

An IV fluid of 5 grams of glucose in every 100 mL of water, written D5W.

DEX-trose five per-SENT in WAH-ter noun

What it means

A common IV solution. In the bag it has about the same concentration as blood (isotonic), but the body quickly uses the glucose, which leaves free water that moves into the cells, so it acts as a hypotonic fluid. It gives some calories and is used to mix many IV drugs and to replace free water.

For the nurse

It can worsen low sodium and brain swelling, so it is not used to treat low blood pressure or blood loss, or for clients with increased intracranial pressurein-truh-KRAY-nee-ul PRESH-erThe pressure inside the skull, made by the brain, the blood and the fluid around the brain.intra- insidecrani/o skull-al relating toFull entry . Watch the blood glucose in clients with diabetes.

At a glance

Drug classIV fluid (dextrose solution)
Also writtenD5W, 5% dextrose in water, D5 water

Related terms

intracranial pressure

The pressure inside the skull, made by the brain, the blood and the fluid around the brain.

glucose

A simple sugar that is the body's main source of energy.

infusion

The slow delivery of a fluid or drug into the body, usually into a vein, over a period of time.

hyponatremia

A blood sodium level below normal, under 135 mEq/L.

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