The 82-year-old patient from the long-term care facility is brought to the emergency department with wet-sounding cough and increased work of breathing. Vital signs are normal with the exception of tachypnea and an oxygen saturation of 91% on room air. Upon auscultation, the nurse notes diminished breath sounds over the right upper lobe. Chest radiograph indicates consolidation in the right upper lobe of the lung. The nurse prepares the patient for which test?