A nurse is assisting with the care of a client who is using pattern-paced breathing during the first stage of labor. The client says she feels lightheaded and her fingers are tingling. Which of the following actions should the nurse take?

D Assist the client to breathe into a paper bag. B Have the client tuck her chin to her chest. C Administer oxygen via nasal cannula. A Instruct the client to maintain a breathing rate no less than twice the normal rate