A home health nurse is assessing a client who has COPD. Which of the following findings indicates the need for a referral for a pulmonary rehabilitation?

Rationale: A. Pursed-lip breathing: Pursed-lip breathing is a compensatory technique used by clients with COPD to improve expiratory airflow and reduce air trapping. It is an expected adaptive response rather than an indicator of disease progression requiring referral. Teaching and reinforcement of this technique are appropriate within standard COPD management. B. Clubbing of the fingers: Digital clubbing may develop over time in chronic hypoxemia but is a structural change that reflects long-standing oxygen deficiency. While it signals the chronicity of disease, it is not an acute indication for pulmonary rehabilitation; referral is generally based on functional limitations and symptom burden. C. SaO2, 92%: An oxygen saturation of 92% is near the lower end of the acceptable range for many clients with COPD. While monitoring and potential supplemental oxygen may be indicated, this level alone does not necessarily mandate pulmonary rehabilitation. Functional status and activity tolerance are more direct indicators. D. Dyspnea at rest: Experiencing dyspnea at rest indicates significant functional limitation and impaired gas exchange. Pulmonary rehabilitation is recommended for clients with activity intolerance or severe breathlessness, as it provides structured exercise training, education, and symptom management strategies to improve quality of life and reduce hospitalizations.