afterload heart

What happens to preload?_6.jpg

What happens to preload?

In response to decreased renal perfusion, intravascular volume rises. Again, several mechanisms contribute. Activation of the renin-angiotensin system is the most important. The dilated, poorly contractile left ventricle becomes less compliant. This means that small increases in volume produce a relatively large increase in pressure. The net result is an increase in preload. Initially, this […] Read more