All of the following are the actions of b-adrenoceptor blockers in CHF except:: (A) Decrease in moality associated with CHF, (B) Antagonism of vasoconstriction due to sympathetic over activity, (C) Prevention of pathological remodelling of ventricular myocardium, (D) Prevention of dangerous cardiac arrhythmias
Answer is B. Beta blockers may actually increase vasoconstriction by antagonizing the vasodilator action of b2 receptors. Decreases moality by reversing LVH. Prevent dangerous cardiac arrhythmias.