NREMT Paramedic

Answer: B - The type of drug that increases the stroke volume of the heart is a positive inotropic agent. This drug makes the heart contract more forcefully, thus increasing the stroke volume. The increase in stroke volume also increases cardiac output. To increase the rate, one would have to administer a sympathomimetic or parasympatholytic. An increase in systemic vascular resistance is achieved by giving an alpha-stimulating drug.