Case Study Scenario John Smith, a 68-year-old patient with a…

Cаse Study Scenаriо Jоhn Smith, а 68-year-оld patient with a history of COPD, arrives in the emergency department with increasing shortness of breath, wheezing, and a productive cough with yellow sputum. His vital signs show BP 145/90, HR 105, RR 30, temperature 99.1°F (37.3°C), and SpO₂ 88% on room air. ABG results reveal PaO₂ 60 mm Hg, PaCO₂ 50 mm Hg, pH 7.35 with a WBC count of 12,000/mm³.