What does the abbreviation 'D5W' represent in IV preparations?

The abbreviation 'D5W' stands for "5% Dextrose in Water." This formulation is commonly used in intravenous (IV) preparations. It indicates that the solution contains 5 grams of dextrose (a form of glucose, which is a simple sugar) dissolved in 100 milliliters of sterile water. This solution serves multiple purposes in clinical settings; it can provide hydration as well as a source of calories, since dextrose is a sugar that can be utilized by the body for energy.

In IV therapy, D5W is often administered to patients who need fluid replenishment or those who may benefit from extra calories without the addition of sodium or other electrolytes. The clarity of the abbreviation is essential for ensuring correct preparation and administration by pharmacy and medical staff. Understanding these components allows technicians to safely prepare and handle IV solutions, ensuring patient safety and therapeutic efficacy.