APACHE II Background: Difference between revisions

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=== Weighting of scores ===
=== Weighting of scores ===
*Each physiological variable selected has been weighted with a score ranging from 0-4 points to reflect severity.
*Each physiological variable selected has been weighted with a score ranging from 0-4 points to reflect severity.
*Physiological variables with the worst deviation from normal have been asigned the higher points.
*Physiological variables with the worst deviation from normal have been assigned the higher points.
*Note about renal scoring:
*Note about renal scoring:
**The point scores for serum creatinine are doubled if [[Kidney, acute renal failure NOS]] is present.  Note that even relatively small rises in serum creatinine are associated with higher rates of death for ICU patients, as indicated in this paper: A Linder, C Fjell, A Levin, KR Walley, JA Russell and JH Boy. Small Acute Increases in Serum Creatinine Are Associated with Decreased Long-Term Survival in the Critically Ill.  American Journal of Respiratory and Critical Care Medicine 189(9):1075-1081, 2014.
**The point scores for serum creatinine are doubled if [[ARF_(APACHE)]] is checked (which would be if [[Kidney, acute renal failure NOS]] is present).  Note that even relatively small rises in serum creatinine are associated with higher rates of death for ICU patients, as indicated in [https://doi.org/10.1164/rccm.201311-2097OC Small Acute Increases in Serum Creatinine Are Associated with Decreased Long-Term Survival in the Critically Ill]
    
    
=== Timing of collection ===
=== Timing of collection ===