【正确答案】 B

【答案解析】Because of decreased contractility and increased fluid volume and pressure in clients with heart failure, fluid may be driven from the pulmonary capillary beds into the alveoli, causing pulmonary edema. In right-sided heart failure, the client exhibits hepatomegaly, jugular vein distention, and peripheral edema. In pneumonia, the client would have a temperature spike, and sputum that varies in color. A client in cardiogenic shock would show signs of hypotension and tachycardia.