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 is unsafe due to limited ventilation and the potential for fire or physical damage. Oxygen tanks should be stored upright in well-ventilated areas, away from flammable materials. B. Ensure that the client checks the gauge weekly: The oxygen gauge should be checked daily to ensure there is an adequate supply. Waiting a week between checks could lead to unexpectedly running out of oxygen, compromising the client's respiratory status. C. Place the oxygen tank away from curtains or drapes: Curtains and drapes are flammable and can easily catch fire if oxygen leaks and an ignition source is nearby. Keeping oxygen tanks away from such materials helps reduce fire hazards in the home. D. Store the oxygen tank wrench in a locked cabinet: The wrench should be stored nearby and easily accessible for emergency use or cylinder changes. Locking it away could delay a timely response if the tank needs adjustment.