The important factors determining oxygen delivery are adequate flow (cardiac output) of well saturated hemoglobin (SaO2); SaO2 is determined primarily by the partial pressure of oxygen in arterial blood (PaO2). Normal PaO2 is between 80–100 mmHg, which produces an SaO2 of greater than 95%. To avoid compromising oxygen delivery, it is desirable to maintain the PaO2 > 70 mmHg and the SaO2 > 90%.
KeywordsPulmonary Embolism Pulmonary Edema Chest Tube Tension Pneumothorax Saturated Hemoglobin
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