Is this patients calculated mean systemic arterial pressure normal?
What about resting cardiac output? The mean pressure (about 105) is a little higher than normal. The patients CO is increased. This can be deduced from the widened pulse pressure. 2. What factors might have contributed to the wide pulse pressure observed in this patient? The diastolic pressure was lower than normal because with the arteriovenous fistula there is less resistance than normal so the arterial blood could flow to the venous system more easily and quickly. To compensate for the demands of the tissues, the heart pumped harder thus creating a greater systolic pressure. 3. How would you characterize this patient’s left ventricular preload and afterload? Support your answer with information from the case. The preload was greater because of the larger muscle (greater tension) and increased blood flow. The afterload was increased too because the heart had to contract to create a 184 mm Hg systolic pressure (This is Dr. Norton’s definition of afterload…some texts will define afte
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