A: Local venous compression
B: Local or systemic venous obstruction
C: Cardiac failure
D: Increase of vasoactive substances
举一反三
- 单选题<br/>Which<br/>of the following statements is the most consistent with the<br/>definition of heart failure? () A: Stroke volume is decreased B: The volume of venous return is greater than that of cardiac output C: Cardiac output cannot meet body’s requirement for metabolism D: Heart dysfunction results in congestion in pulmonary and systemic<br/>circulation
- The mechanism of lower extremity edema in patients with right heart failure does not include: A: Increased capillary permeability B: Retention of sodium and water C: Systemic venous congestion D: Hypoproteinemia E: Increased capillary hydrostatic pressure
- 3. Which of the following hypoxia generally has no cyanosis? A: Respiratory insufficiency B: Suffocation C: Tissue oxygen disorder D: Venous blood doping E: Cardiac insufficiency
- The reliable variables reflecting tissue perfusion are () A: Central venous pressure B: Mean arterial pressure C: Systemic vascular resistance D: Venous oxygen saturation E: Pulmonary capillary wedge pressure
- Which of the following will increase cardiac output? A: an increase in sympathetic impulses B: an increase in parasympathetic impulses C: a faster stream of impulses from the baroreceptors D: an increase in vasodilation
内容
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The pathogenesis of dyspnea in left heart failure? () A: Hypotension. B: Congestion of systemic circulation. C: Myocardial ischemia and hypoxia. D: Increased blood volume. E: Pulmonary congestion and pulmonary edema
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【单选题】Either or both may be present and so increase the outflow of blood from the arterial to the venous system, as to lower mean arterial pressure and increase cardiac output. A: 平均动脉压…心输出量 B: 动脉压方式…大出血 C: 动脉压中间值…大出血 D: 动脉压方式…心输出量
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中国大学MOOC: According to local customs, which of the following is not true?
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The failure modes of foundation include general shear failure, local shear failure and punching shear failure（ ）
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Which of the following agonists would be used for cardiac arrest, heart block, or heart failure? A: α1-agonist B: α2-agonist C: β1-agonist D: β3-agonist