Cardiopulmonary Exam #2 (Chapter 4, 5, 6, 7, & 8) QUESTIONS WITH COMPLETE SOLUTIONS
What is the interpretation of a decrease in the C(a-v)O2 A) A decrease in the oxygen extraction ratio B) A reduction in cardiac output C) An increase in cardiac output A decrease in Hb level correct answer: C) An increase in cardiac output Which of the following statements are true of oxygen transport? I. Hemoglobin allows whole blood to carry approximately 20 mL of oxygen per 100 mL of blood at the normal arterial PaO2 of 100 mmHg II. Hemoglobin's capacity to carry oxygen is approximately 67 times more than the capacity of plasma alone when PaO2 is 100 mmHg III.A normal cardiac output of 5 L/min delivers approximately 1000 mL of oxygen to the body's tissues each minute IV.The amount of oxygen delivered is not enough to meet the tissues' resting requirement A) I, II, III B) III, IV C) I, II, III, IV D) II, IV correct answer: A) I, II, III What is the name of the phenomenon associated with the decreased affinity of Hb for oxygen when PCO2 is high?
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