A system that uses a vacuum source to remove waste anesthetic gases (WAG) is a?

A system that uses a vacuum source to remove waste anesthetic gases (WAG) is best defined as an active scavenge system. This type of system actively collects and directs waste gases from the surgical area to a disposal or filtering mechanism. The term "active" indicates that the system relies on a vacuum or suction to function, which is essential for creating a continuous flow that effectively removes the potentially harmful anesthetic gases from the patient's breathing zone and surrounding environment.

Active scavenge systems are designed to enhance patient and staff safety by minimizing exposure to waste anesthetic gases, which can have adverse health effects with prolonged exposure. These systems are typically equipped with suction pumps and may include features like gas monitoring and alarms to ensure that waste gases are effectively removed and that safe operating conditions are maintained.

On the contrary, a passive scavenge system relies on gravity and natural airflow rather than a vacuum source. While it can be effective in certain situations, it does not provide the same level of control or efficiency as an active system. This distinction is crucial in understanding why the active scavenge system is specifically designed to manage waste anesthetic gases more effectively, reflecting its importance in the context of safety and efficacy in medical environments.