The Diameter-index Safety System is implemented on which part of the gas delivery system?

The Diameter-index Safety System is implemented on which part of the gas delivery system?

• A. On the cylinders
• B. On the walls of the anesthesia machinery
• C. In the breathing circuit
• D. In the scavenging system

Answer: (B)

Diameter-index safety systems protect against misconnections by using gas-specific, non-interchangeable connectors at the interface between the hospital gas supply (wall outlets or pipelines) and the anesthesia machine. The key idea is to ensure the correct gas line fits only its matching inlet on the machine, preventing you from accidentally connecting, say, oxygen to a nitrous oxide line. Because this safety check happens at the machine’s gas inlets and their wall-supply connections, it is implemented on the walls of the anesthesia machinery (the machine–wall supply interface). Cylinders use a different safety system (pin-index safety system) and the breathing circuit or scavenging system use their own standard connectors, not DISS.

Diameter-index safety systems protect against misconnections by using gas-specific, non-interchangeable connectors at the interface between the hospital gas supply (wall outlets or pipelines) and the anesthesia machine. The key idea is to ensure the correct gas line fits only its matching inlet on the machine, preventing you from accidentally connecting, say, oxygen to a nitrous oxide line. Because this safety check happens at the machine’s gas inlets and their wall-supply connections, it is implemented on the walls of the anesthesia machinery (the machine–wall supply interface).

Cylinders use a different safety system (pin-index safety system) and the breathing circuit or scavenging system use their own standard connectors, not DISS.