The Nurse Is Caring for a Patient in Cardiogenic Shock

The nurse is caring for a patient in cardiogenic shock experiencing chest pain.Hemodynamic values assessed by the nurse include a cardiac index (CI) of 2.5 L/min/m²,heart rate of 70 beats/min,and a systemic vascular resistance (SVR) of 2200 dynes/sec/cm^-5.Upon review of physician orders,which order is most appropriate for the nurse to initiate?

A) Furosemide (Lasix) 20 mg intravenous (IV) every 4 hours as needed for CVP > 20 mm Hg
B) Nitroglycerin infusion titrated at a rate of 5-10 mcg/min as needed for chest pain
C) Dobutamine (Dobutrex) infusion at a rate of 2-20 mcg/kg/min as needed for CI < 2 L/min/m²
D) Dopamine (Intropin) infusion at a rate of 5-10 mcg/kg/min to maintain a systolic BP of at least 90 mm Hg