What action should be taken regarding oxygen tank pressure when it is at minimum?

• A. Replace the tank or switch to a full supply
• B. Continue using current supply
• C. Notify supervisor only
• D. Switch to another gas source

Answer: (B)

Oxygen delivery depends on having enough gas in the cylinder to maintain the prescribed flow. When the gauge shows minimum, the regulator can still deliver oxygen at the set flow as long as there’s still gas left and you can finish the care you’re providing. The appropriate step is to continue using the current supply while you monitor the remaining volume and arrange for a replacement or backup cylinder so you’re prepared if the supply runs out. Replacing immediately or switching to another gas source isn’t necessary unless you cannot sustain the needed flow or anticipate running out soon, and simply notifying supervision isn’t enough to ensure uninterrupted oxygen delivery.