A 56-year-old man is admitted to the coronary care unit (CCU) for an acute inferior wall myocardial infarction. The cardiologist is trying to optimize the oxygen delivery to the myocardial tissue. Supplemental oxygen is provided by the nasal cannula at 3 L/min. which of the following best describes the oxygen- carrying capacity of whole blood? a. it is only related to respitaroy exchange ratiob. it is only the amount of O2 dissolved in the bloodc. dependent on the alveolar PO2 onlyd. it is the sum of the dissolved O2 plus the amount of O2 bound to hemoglobin e. it is only equal to Oxygen attached with Hb

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