the nurse is providing care for a client who has a tracheostomy and whose pulse oximeter has recently alarmed, showing the client's oxygen saturation to be 77%. the nurse has repositioned the client and applied supplementary oxygen, interventions that have raised the client's oxygen levels to 80% and have somewhat decreased his work of breathing. the client is not in immediate distress, and his level of consciousness remains high. the nurse should page which practitioner?
