Amrinone (Inocor) is used for short term therapy for CHF and acts by which of the following mechanisms?

Increasing stroke volume and heart rate

The action of amrinone (Inocor) is to increase stroke volume. ejection fraction. and heart rate. Lanoxin. not amrinone. slows ventricular rate and increases cardiac output. The vasodilator effect of amrinone decreases peripheral vascular resistance. Any increase in cardiac output will enhance renal perfusion; this is not just specific to amrinone.