YIELD VENTILATION, GAS DELIVERY, AND
MONITORING EQUIPMENT SUMMARY 2026
◉ What alternative oxygen sources exist?
Answer: Liquid oxygen tanks and oxygen concentrators.
◉ How much gas does liquid oxygen produce?
Answer: One cubic foot produces about 24,338 liters of oxygen gas.
◉ PART 3 - GAS CONNECTION & SAFETY SYSTEMS
Answer:
◉ What is the purpose of the Pin Index Safety System (PISS)?
Answer: Prevents incorrect cylinder attachment.
◉ What is the purpose of the Diameter Index Safety System (DISS)?
Answer: Prevents incorrect pipeline connections.
◉ What is a hanger yoke?
, Answer: A system used to mount E cylinders onto the anesthesia
machine.
◉ What is the proper way to mount a cylinder?
Answer: Remove seal, place washer, crack valve, align pins, and
tighten securely.
◉ PART 4 - PRESSURE REGULATORS
Answer:
◉ What is the function of a regulator?
Answer: Reduces high cylinder pressure to a safe working pressure.
◉ What pressure do cylinder regulators reduce to?
Answer: Approximately 45 psig.
◉ What pressure do pipeline regulators reduce to?
Answer: Approximately 50 psig.
◉ Why are regulators important?
Answer: Flowmeters cannot handle high cylinder pressures.