The Yale Auburn score, also known as the Apache II score, is a widely used severity-of-disease classification system. Initially developed in 1981 by William A. Knaus and his colleagues at George Washington University, it was designed to measure the severity of disease for adult patients admitted to intensive care units (ICUs). The score is calculated based on several physiological and laboratory parameters, providing a quantitative measure of the severity of illness.
Calculation of the Yale Auburn Score
The Yale Auburn score, or Apache II score, is calculated based on 12 physiological and laboratory parameters, including temperature, mean arterial blood pressure, heart rate, respiratory rate, oxygenation, arterial pH, serum sodium, serum potassium, creatinine, hematocrit, white blood cell count, and the Glasgow Coma Scale. Each parameter is assigned a score based on its deviation from normal, with higher scores indicating more severe deviations. The total score ranges from 0 to 71, with higher scores indicating a higher risk of mortality.
Components of the Yale Auburn Score
The 12 components of the Apache II score are:
- Temperature (°C)
- Mean arterial blood pressure (mmHg)
- Heart rate (beats per minute)
- Respiratory rate (breaths per minute)
- Oxygenation (mmHg or percentage)
- Arterial pH
- Serum sodium (mmol/L)
- Serum potassium (mmol/L)
- Creatinine (mg/dL)
- Hematocrit (%)
- White blood cell count (cells/mm^3)
- Glasgow Coma Scale
| Parameter | Score |
|---|---|
| Temperature (°C) | 0-4 points |
| Mean arterial blood pressure (mmHg) | 0-4 points |
| Heart rate (beats per minute) | 0-4 points |
| Respiratory rate (breaths per minute) | 0-4 points |
| Oxygenation (mmHg or percentage) | 0-4 points |
| Arterial pH | 0-4 points |
| Serum sodium (mmol/L) | 0-4 points |
| Serum potassium (mmol/L) | 0-4 points |
| Creatinine (mg/dL) | 0-4 points |
| Hematocrit (%) | 0-4 points |
| White blood cell count (cells/mm^3) | 0-4 points |
| Glasgow Coma Scale | 0-4 points |
Clinical Applications of the Yale Auburn Score
The Yale Auburn score has several clinical applications, including predicting mortality and morbidity, guiding patient care and resource allocation, and facilitating communication among healthcare providers. The score can also be used to evaluate the effectiveness of treatments and interventions, and to identify areas for quality improvement.
Predicting Mortality and Morbidity
The Apache II score has been shown to be a reliable predictor of mortality and morbidity in ICU patients. A higher score is associated with a higher risk of mortality, and the score can be used to stratify patients according to their risk of death. This information can be used to guide patient care and resource allocation, and to facilitate communication among healthcare providers.
What is the Yale Auburn score used for?
+The Yale Auburn score, also known as the Apache II score, is used to measure the severity of disease in adult patients admitted to intensive care units (ICUs). It is calculated based on 12 physiological and laboratory parameters, and provides a quantitative measure of the severity of illness.
How is the Yale Auburn score calculated?
+The Yale Auburn score is calculated based on 12 physiological and laboratory parameters, including temperature, mean arterial blood pressure, heart rate, respiratory rate, oxygenation, arterial pH, serum sodium, serum potassium, creatinine, hematocrit, white blood cell count, and the Glasgow Coma Scale. Each parameter is assigned a score based on its deviation from normal, with higher scores indicating more severe deviations.
