[Answer] A nurse is examining a patient with chronic bronchitis who has complaints of blood in the sputum. What appropriate actions should the nurse perform? Select all that apply.A. Assess the characteristics of the bloodB. Assess for the source of bleedingC. Request Chest X-ray and bronchoscopyD. Request pH testing of the sputum specimenE. Do not request a pH test; consider all blood-stained sputum to be hematemesis