What are factors that influence the cardiac output?

Cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the heart contracts.

Multifactorial: Cardiac out put is the product of stroke volume (the amount of blood pushed out of the the left ventricle with each cycle) multiplied by the heart rate giving a number measured in liters per minute. Factors including how well the heart is working and resistance to flow will affect cardiac output.