heart and blood vessel disorders
Low Blood Pressure
Changing cardiac output
The more blood pumped from the heart per minute (that is, the larger the cardiac output), the higher the blood pressure—as long as the width of the arteries remains constant. The amount of blood pumped during each heartbeat can be affected by How fast the heart is beating How strongly the heart contracts How much blood comes into the heart from the veins The pressure in the arteries that the heart has to pump against How well the heart valves let blood out and prevent the backflow of blood 