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. Oxygen tanks should never be stored in enclosed or confined spaces such as under a bed due to the risk of fire and poor ventilation, which can increase the danger of oxygen accumulation. B. Place the oxygen tank away from curtains or drapes. This is essential to reduce the risk of fire. Oxygen supports combustion, so keeping the tank away from flammable materials like curtains helps ensure a safe home environment. C. Store the oxygen tank wrench in a locked cabinet. The wrench should be kept accessible, not locked away, to allow quick adjustments or shut-off in case of emergency. Immediate access is a priority in safe oxygen use. D. Ensure that the client checks the gauge weekly. The oxygen tank gauge should be monitored more frequently than once a week to avoid running out of oxygen unexpectedly, especially in clients with chronic respiratory conditions like COPD.