Based on the hemodynamic values CO 3.5 L/min, CVP 14 cm H2O, PAWP 21 mmHg, SVR 1200 dynes·sec/cm5, which intervention is most appropriate?

• A. Positive inotropy and diuretics
• B. Pressors to raise afterload
• C. Vasodilator therapy only
• D. Mechanical circulatory support

Answer: (A)

This pattern shows cardiogenic shock with congestive features: the cardiac output is reduced (3.5 L/min) while filling pressures are high (CVP ~14 cmH2O, PAWP ~21 mmHg), and the systemic resistance is elevated (about 1200 dynes·sec/cm5). The priority is to improve forward flow and relieve congestion. Positive inotropy increases the heart’s contractility, boosting stroke volume and cardiac output, which improves perfusion. Diuretics help unload the volume overload, lowering the elevated filling pressures and reducing pulmonary edema. Using vasodilators alone would lower afterload but can worsen blood pressure and perfusion in a weak heart, and pressors that raise afterload would further impair output. Mechanical circulatory support is reserved for more refractory cases after inotropic/diuretic strategies have been tried. So, providing positive inotropy with diuretics best addresses both the low CO and the congestive physiology.