shock index - is there a term for it, shortcut?

Answer
The term for the Shock Index is often abbreviated as "SI." It is a valuable tool used in emergency medicine to assess the likelihood of survival in patients experiencing shock. The Shock Index is calculated by dividing the patient's heart rate by their systolic blood pressure, with a normal range typically considered to be between 0.5-0.7. Additionally, there are variations of the Shock Index, such as the Modified Shock Index (MSI) and the Shock Index, Pediatric Age-Adjusted (SIPA), which provide further insights into patient outcomes in specific populations like pediatric or geriatric patients.
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