APACHE II
APACHE II (Acute Physiology And Chronic Health Evaluation II) is a severity-of-disease classification system (ICD-10-CM), one of several ICU Scoring Systems, that is applied within 24 hours of admission of a patient to an intensive care unit (ICU). It was developed in 1985 by Dr. William Knaus and others.
Pronunciation
APACHE II is pronounced as /əˈpætʃiː tuː/.
Etymology
The term APACHE II is an acronym that stands for "Acute Physiology And Chronic Health Evaluation II". The "II" signifies that this is the second version of this scoring system.
Related Terms
Description
APACHE II uses a point score based upon initial values of 12 routine physiological measurements, age, and previous health status to provide a general measure of severity of disease. The score is calculated from 12 acute physiologic variables, each of which is assigned a number from 0 to 4 depending on the degree of deviation from the norm. The variables include: A-aDO2 or PaO2, temperature, mean arterial pressure, pH, heart rate, respiratory rate, sodium, potassium, creatinine, hematocrit, white blood cell count, and Glasgow Coma Scale.
Usage
APACHE II was designed to measure the severity of disease for adult patients admitted to intensive care units. It can be used to stratify patients in clinical studies, to measure quality of care and to predict hospital mortality.
See Also
External links
- Medical encyclopedia article on APACHE II
- Wikipedia's article - APACHE II
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