Shock Index


To use the shock index to identify patients who may need more intensive care even though the vital signs may appear stable or not markedly abnormal.


Cardiovascular Diseases, Interventional Cardiology, Pediatric Cardiology, Emergency Medicine, Sports Medicine - Emergency Medicine, Medical Toxicology, Pediatric Emergency Medicine, Critical Care Medicine, Pediatric Critical Care Medicine, Pediatric Emergency Medicine


risk factors, severity, prognosis, stage, complications, selection, complication detection


I01, I02.0, I09.8, I50


The Shock Index (SI) is the ratio of the heart rate to systolic blood pressure. The index is a sensitive indicator of left ventricular dysfunction and can become elevated following a reduction in left ventricular stroke work. It can be used in the Emergency Department and Intensive Care Unit to identify patients needing a higher level of care despite vital signs that may not appear strikingly abnormal.

To read more or access our algorithms and calculators, please log in or register.


medal descover
medal iphone