Which of the following statement(s) is/are true concerning oxygen delivery?

a. The amount of oxygen delivered to peripheral tissues is dependent upon the oxygen content in arterial blood and cardiac output

c. The normal arterial-venous difference is 4 cc O2/dL

d. Normal systemic oxygen delivery for a typical adult is approximately 1000 cc/min

The amount of oxygen that is delivered to peripheral tissues is the product of the oxygen content in arterial blood times the cardiac output. Normally, oxygen content of arterial blood is approximately 20 cc/dL, and the normal cardiac index is 5 L/min. Therefore, the normal systemic oxygen delivery is approximately 1000 cc/min. Although oxygen content is the most important measure of oxygen in the blood, PO2 and oxyhemoglobin saturation is more commonly measured in the Intensive Care Unit, hence it is necessary to convert between these measurements. The normal oxygen content of venous blood is 16 cc/dL. Hence, the normal arterial-venous difference is 4 cc O2/dL.