When blood volume drops down abruptly, what happens to the stroke volume? State whether it increases or decreases?

Explanation

Stroke volume SV = EDV - ESV
EDV - Amount of blood getting collected in ventricle during diastole.
ESV - Volume of blood remaining in ventricle after contraction.
1. Heart.s pumping action maintains balance between cardiac output and venous return, Heart is a double pump.
2. Each side of the heart can fail independently of the other
3. Increase in EDV can increase SV. On the other hand decrease in venous retum and EDV can decrease SV. Similarly changes of EDV and ESV on SV are not independent.