APACHE II Station
Standardized Severity of Disease Classification HUD
Awaiting Clinical Data...
Clinical Application of APACHE II
The APACHE II (Acute Physiology and Chronic Health Evaluation II) is the world’s most validated severity-of-disease classification system. Designed by Knaus et al. in 1985, it is used within the first 24 hours of ICU admission to provide a risk-stratified mortality estimate based on the "worst" recorded physiological variables.
Component Calculation
Total Score (0–71) = APS (Acute Physiology Score) + Age Points + Chronic Health Points. Higher scores indicate increased physiological derangement and a correspondingly higher risk of hospital death.
Frequently Asked Questions
How should lab values be selected?
Always use the **most abnormal** (worst) value recorded during the initial 24-hour period of the patient's stay in the ICU.
What is the difference between APACHE II and SOFA?
APACHE II is a "snapshot" score used for initial prognosis and benchmarking. The SOFA score is calculated daily to monitor dynamic organ dysfunction and response to therapy.
Clinical Bibliography
- 1. Knaus WA, et al. APACHE II: a severity of disease classification system. Crit Care Med. 1985;13(10):818-29.
- 2. Oh's Intensive Care Manual. 8th Edition. Elsevier Health Sciences.
CLINICAL RESOURCE
This tool is designed for healthcare professionals and provides statistical mortality estimates based on established ICU data models.