The nurse is evaluating the effects of a drug that causes a positive inotropic effect. The nurse knows that an agent with this property: 1. Increases the force of cardiac contractions. 2. Decreases...

The nurse is evaluating the effects of a drug that causes a positive inotropic effect. The nurse knows that an agent with this property:

1. Increases the force of cardiac contractions.

2. Decreases the volume of the cardiac output.

3. Relaxes the myocardial muscle.

4. Inhibits cardiac irregularities.