Identify whether each item would increase or decrease stroke volume. Increase Stroke Volume Decrease Stroke Volume Sympathetic stimulation Increasing EDV Increasing afterload Increasing contractility Increasing preload Increased heart rate Stress Increasing contractility Dehydration Dehydration Decreased venous Teturn Sympathetic stimulation Increasing EDV Stress Acute exercise Increasing afterload Increased heart rate, Acute exercise Decreased venous retum Increasing preload Reset