Outdated Theory About Cardiac Output – The Shocking Truth Revealed!

Tue, 05 May 2026 16:12:29 +0000

# Outdated Theory About Cardiac Output – The Shocking Truth Revealed Cardiac output (CO) is a cornerstone of cardiovascular physiology, long regarded as the heart’s most vital metric. Traditionally, cardiac output has been defined and calculated using straightforward formulas and lab-based measurements considered comprehensive—until recently. A long-held theory, once considered absolute, is now being challenged by emerging research: the outdated concept that cardiac output remains static under stable conditions is no longer accurate. ## What Is the Old Theory on Cardiac Output? For decades, cardiac output was defined as the volume of blood the heart pumps per minute, typically calculated as: