This document discusses outcome assessment for pulmonary rehabilitation programs. It outlines several key domains to measure for outcomes, including health, clinical, behavioral, and service domains. Clinical domains focus on measuring decreases in dyspnea and fatigue and increases in exercise performance and functional status. Outcomes should be measured before and after rehabilitation to evaluate a patient's progress and the program's effectiveness. Long-term follow up is also important to reinforce skills and support learned in rehabilitation. Regular outcome assessment provides feedback on patients and the overall program.