One dаy, Cаleb cоmes tо PR cоmplаining of a worsening productive cough (thick dark green sputum), dyspnea, occasional hemoptysis, fatigue, and weight loss. You encourage Caleb to see his physician or go to urgent care. He follows your instructions and is ultimately admitted to the hospital due to respiratory compromise and an antibiotic resistant Staphylococcus aureus inflection. Additional information from his hospitalization is found below. Arterial Blood Gases: · pH: 7.3 · PaCO2: 110 · HCO3-: 52 · PaO2: 45 Is hypoxemia present?