• Evaluation of afterload in shock states.
• Differentiating between types of shock (e.g., distributive shock with low SVR vs. cardiogenic shock with high SVR).
• Titrating vasodilator or vasopressor therapy in the ICU/CCU.

SVR represents the resistance against which the left ventricle must pump. In cardiogenic shock, the body typically compensates by increasing SVR (vasoconstriction) to maintain blood pressure, which further strains the failing heart.