COPD and Oxygen Safety
COPD patients chronically retain CO2 and may rely on a hypoxic drive to breathe. Over-aggressive oxygen can blunt that drive and cause CO2 narcosis. Use controlled oxygen titrated to a target saturation — typically 88–92% for COPD patients (vs. 94–98% for most others), per provider orders. Use Venturi masks for precise FiO2 control.
Assessment
Pursed-lip breathing, barrel chest, accessory muscle use, prolonged expiration, cyanosis, and clubbing in chronic cases.
Management
Bronchodilators (short-acting beta-agonists and anticholinergics), inhaled or systemic corticosteroids for exacerbations, smoking cessation, vaccinations (influenza, pneumococcal), pulmonary rehabilitation, and long-term oxygen for those with chronic severe hypoxemia.
Patient teaching
Pursed-lip breathing (extend exhalation), pace activities, avoid extreme temperatures and respiratory irritants, never run out of oxygen at home, and report changes in sputum or worsening dyspnea promptly.
Practice with detailed rationales, study plans, and performance feedback.
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