A charge nurse is teaching a newly licensed nurse about caring for a client who has COPD. Which of the following instructions should the charge nurse include in the teaching?

"Notify me if you observe that the client has distended neck veins."

"Maintain the client's oxygen saturation level above 95 percent."

"Call the provider if you note clubbing of the client's fingernails"

"Have an assistive personnel ambulate the client just before meals."