is sustained by the continual flow of blood - pumped by the heart.
The heart circulates blood through two separate systems at the
1. The Lungs - to charge the blood with Oxygen and release
from the blood waste Carbon Dioxide.
rest of the body - to supply the body cells with the oxygen,
nutrients and control substances they need to sustain life and to
remove the waste products of cell metabolism.
The Blood output leaving the heart (cardiac output) is a combined
measure of the health of the heart (a pump) and the health of the
circulatory system (the pipelines).
So the measure
of flow is the measure of life!
is the study of blood flow to and from the body tissues. The
basis of this science is the realization that the heart and
circulation system function in a similar way to a simple
electrical circuit and that a simple formula similar to OHMS Law
It should be obvious
that the accurate measurement of cardiac output (Q) is of
fundamental importance in being able to use heamodynamic concepts
to diagnose and treat a wide range of heart and circulation