Which method is effective in preventing air embolism during IV therapy?

Priming IV lines before connecting is essential for preventing air embolism during IV therapy. When an IV line is not primed, air can remain in the tubing, which may be inadvertently introduced into the patient's bloodstream when the IV is connected. By filling the IV line with fluid prior to attachment, this air is expelled, ensuring that only the intended medication or solution is delivered to the patient, thereby reducing the risk of complications such as air embolism.

The priming process involves flushing the entire length of the IV line with the infusion solution until all visible air bubbles are removed. This creates a continuous fluid column, preventing any accidental entry of air into the circulatory system. This practice is a fundamental safety measure in IV therapy, promoting patient safety and the efficacy of the treatment being administered.