Cardiac output increases due to:
Option A: Thoracic pump: Option B: Decreased blood volume - decreased mean systemic filling pressure (Psf)-decreased venous return Option C: Decreased ventricular compliance will decrease the ability of ventricle to accumulate blood during diastole - decreased EDV Option D: Decreased filling, decreases EDV Factors maintaining CO: Hea rate (chronotropic effect) Stroke volume Venous return or EDV or preload Force of contraction (inotropic effect) determines ESV Afterload, determined by total peripheral resistance (TPR)
Decrease in intrathoracic pressure
Decrease in blood volume
Decreased ventricular compliance
Decreased mean systemic filling pressure
Cardiac Output