Catecholamines produce a marked increase in myocardial contractility.This reaction is also called a

Question

Quizplus · Accepted Answer

The positive inotropic effect refers to the increase in myocardial contractility produced by catecholamines. The negative dromotropic effect refers to a decrease in conduction velocity through the AV node, and the negative chronotropic effect refers to a decrease in heart rate. The positive somatotropic effect is not relevant to the effects of catecholamines on the heart.

Catecholamines Produce a Marked Increase in Myocardial Contractility