DANB Infection Control (ICE) Practice Exam 2026 – Complete Prep Guide

Utilizing a scavenging system on the nitrous oxide equipment is the most effective method for reducing exposure of dental healthcare personnel to nitrous oxide gases. A scavenging system is designed to capture excess nitrous oxide that may escape into the environment during its administration to a patient. By effectively removing these gases from the operatory air, the system helps maintain a safer work environment for dental healthcare workers, minimizing their inhalation of potentially harmful anesthetic gases.

While other measures like limiting the use of nitrous oxide to emergencies or increasing ventilation in the operatory can contribute to reducing exposure, they are not as directly effective as a scavenging system. Limiting usage may not always be practical, and increased ventilation alone may not adequately mitigate exposure levels if nitrous oxide is still being leaked into the environment. The use of disposable nitrous oxide equipment does not address the concern of airborne nitrous oxide effectively. Thus, implementing a scavenging system specifically targets the problem of excess gas exposure, making it the optimal choice.