<prompt> Digitalis has positive Inotropic effect-by the viue of its effect on:NaK ATPase pumpNa Glucose channelsHK ATPase pumpCalcium pump  <response>: Ref:KDT 6e p496 Digitalis is used clinically because it exes a positive inotropic effect and because it slows transmission in the AV node in patients with supraventricular tachyarrhythmias. The positive inotropic effect is due to inhibition of the sodiumpotassium pump at the outer cell membrane. 