Final answer:
A CNA should use a gait belt to help the resident ambulate safely, as it provides stability and support, preventing falls and ensuring patient and caregiver safety. It is not intended for restraint, back support, or as a holder for an oxygen tank.
Step-by-step explanation:
The CNA should use a gait belt A. to help the resident ambulate safely. A gait belt is a device used to assist patients who are partially able to walk but may need support and assistance to do so safely. It is placed around the patient's waist, and the caregiver can hold onto it to help stabilize and support the patient during ambulation. It is an important tool to prevent falls and ensure the safety of both the patient and the caregiver. Using a gait belt is not appropriate for restraining a resident, for back support when transferring residents, or to hold objects like an oxygen tank.