Which of the following directly affects oxygenation? (Select all that apply.)

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Hypoxia is a condition in which oxygen is insufficient to meet the metabolic demands of tissues and cells.Hypoxia results from hypoxemia,a deficiency of arterial blood oxygen.Hemoglobin is the carrier of respiratory gases,oxygen,and carbon dioxide.It combines with a gas to carry it to and from the cells.Decreased hemoglobin levels reduce the amount of oxygen transported to the cells and of carbon dioxide transported away from the cells.Hemoglobin levels and acid-base status directly affect oxygenation.Acidemia increases the ability of hemoglobin to release oxygen to the tissues.Alkalemia decreases the ability of hemoglobin to release oxygen to the tissues.

Which of the Following Directly Affects Oxygenation? (Select All That