Why are cylinders required to have a pressure indicator?

• A. To ensure constant pressure supply
• B. To avoid leakage
• C. To display maximum filling pressure
• D. To indicate cylinder pressure

Answer: (D)

Pressure indicators on gas cylinders are essential because they provide a real-time measurement of the pressure inside the cylinder. This is crucial for monitoring how much gas is left and whether it is safe to use. A clear pressure indication helps healthcare professionals ensure that adequate pressure is available for patient care and also assists in planning for timely gas refills or replacements before running out.

While constant pressure supply, avoiding leakage, and maximum filling pressure are important considerations in the use of gas cylinders, the primary function of a pressure indicator is to directly show the current cylinder pressure. This immediate feedback is vital for maintaining safe operating conditions during anesthesia procedures.