A home care nurse is making a follow-up visit with a client who has COPD and is using a compressed oxygen system in his home. Which of the following actions should the nurse take?

A. Have the client store smaller tanks under his bed: Storing oxygen tanks under the bed poses a serious fire hazard and increases the risk of accidental tipping or damage. Proper storage requires a stable, upright position in a well-ventilated area away from flammable materials. B. Ensure that the client checks the gauge weekly: Oxygen tanks should be checked daily to ensure adequate supply and to prevent sudden depletion. Waiting a week between checks could result in unexpected oxygen interruption, which is unsafe for clients dependent on supplemental oxygen. C. Place the oxygen tank away from curtains or drapes: Oxygen supports combustion, and placing tanks near flammable materials such as curtains, drapes, or open flames increases the risk of fire. Proper placement in a clear, ventilated area is a critical safety measure for home oxygen therapy. D. Store the oxygen tank wrench in a locked cabinet: While securing equipment is generally safe, the oxygen tank wrench must be readily accessible in case of emergency or the need to quickly turn off the oxygen. Locking it away could delay urgent intervention.