What are the factors which determine cardiac output

CO = stroke volume * pulse rate.-

and u have four determinants for it:
1. preload (or the volume in the ventricle at the end of diastoly; determinated mainly by the venous return to the heart, & the volume of circulating blood)
2.afterload (determinated mainly by the blood pressure & the periferic vascular resistenses)
3.and the cardiac contractility.-
4 . pulse rate.-

the first three r determinants of the stroke volume.-
hopes this helps you.-

Heart rate X Stroke volume

Cardiac Output
In human physiology, volume of blood expelled by either ventricle of the heart. It is customarily expressed as minute volume, or litres of blood per minute, calculated as the product of stroke volume (output of either ventricle per heartbeat) & the number of beats per minute. Maintaining & regulating cardiac output, which is usually proportional to the tissues' need for oxygen & other nutrients, is one of the circulatory system is most intricate functions. In the healthy human adult, resting (or basal) output is estimated to be slightly over five litres per minute. Normally, it decreases somewhat when a person changes from recumbent to upright position. It may be increased 50 to 100 percent by anxiety & excitement & as much as fivefold by exercise. Measurement of cardiac output makes possible an evaluation of respiratory exchange, i.e., the delivery of oxygen to the tissues.

this sight explains it all +diuagrames