What is a common solution used in IV therapy?

Normal saline (0.9% sodium chloride) is a widely used solution in IV therapy. This isotonic solution closely matches the osmolarity of bodily fluids, making it ideal for various clinical situations such as fluid resuscitation, hydration, and as a diluent for medications. Its neutral pH and lack of additional solutes mean it can be administered safely in large volumes without the risk of causing significant shifts in fluid balance or electrolyte levels.

While other options, such as Lactated Ringer's solution and Dextrose 5% in water, are also used in certain clinical scenarios, normal saline is particularly versatile and frequently utilized in both emergency and routine medical settings. Lactated Ringer's contains additional electrolytes, which may be beneficial in certain cases but are not always necessary. Dextrose solutions provide a source of calories and are usually employed when the patient's nutritional needs must be met through IV therapy or in cases of hypoglycemia.

Calcium chloride is utilized in specific situations related to calcium supplementation, cardiac issues, or electrolyte imbalances, and is not as broadly applicable as normal saline. Thus, normal saline stands out as the most common and versatile solution in IV therapy practices.