APCHE Ⅱ(Acute Physiology and Chronic Health Evaluation) score即急性生理和慢性健康評分，計分內容包括12項生理檢查，病患年齡、以及慢性疾病狀態，評分時以住進加護病房24小時內最差的數據為準，很多的研究均肯定APCHEⅡ準確地反應加護病房重症病人的 實際死亡率。

APACHE II Score and Mortality Prediction

Temperature (°C)
	>= 41 (4 points) 39-40.9 (3 points) 38.5-38.9 (1 point) 36-38.4 (0 points) 34-35.9 (1 point) 32-33.9 (2 points) 30-31.9 (3 points) <= 29.9 (4 points) ___________________________
Mean Arterial Pressure (mmHg)
	>= 160 (4 points) 130-159 (3 points) 110-129 (2 points) 70-109 (0 points) 50-69 (2 points) <= 49 (4 points) ___________________________
Heart Rate
	>= 180 (4 points) 140-179 (3 points) 110-139 (2 points) 70-109 (0 points) 55-69 (2 points) 40-54 (3 points) <= 39 (4 points) ___________________________
Respiratory Rate
	>= 50 (4 points) 35-49 (3 points) 25-34 (1 point) 12-24 (0 points) 10-11 (1 point) 6-9 (2 points) <= 5 (4 points) ___________________________
A-aPO2(FiO2>50%) or PaO2(FiO2<50%)
	>= 500 (4 points) 350-499 (3 points) 200-349 (2 points) < 200 or PaO2 > 70 (0 points) PaO2 61-70 (1 point) PaO2 55-60 (3 points) PaO2 < 55 (4 points) ___________________________
Arterial pH or HCO3
	>= 7.7; >= 52 (4 points) 7.6-7.69 ; 41-51.9 (3 points) 7.5-7.59 ; 32-40.9 (1 point) 7.33-7.49 ; 32-40.9 (0 points) 7.25-7.32 ; 18-22.9 (2 points) 7.15-7.24 ; 15-17.9 (3 points) < 7.15 ; < 15 (4 points) ___________________________
Serum Na+ (mEq/L)
	>= 180 (4 points) 160-179 (3 points) 155-159 (2 points) 150-154 (1 point) 130-149 (0 points) 120-129 (2 points) 111-119 (3 points) <= 110 (4 points) ___________________________
Serum K+ (mEq/L)
	>= 7 (4 points) 6-6.9 (3 points) 5.5-5.9 (1 point) 3.5-5.4 (0 points) 3-3.4 (1 point) 2.5-2.9 (2 points) < 2.5 (4 points) ___________________________
Serum Creatinine (ARF means Acute Renal Failure)
	>= 3.5 (4 points) > 3.5 in ARF (8 points) 2-3.4 (3 points) 2-3.4 in ARF (6 points) 1.5-1.9 (2 points) 1.5-1.9 in ARF (4 points) 0.6-1.4 (0 points) < 0.6 (2 points) ___________________________
Hct (%)
	>= 60 (4 points) 50-59.9 (2 points) 46-49.9 (1 point) 30-45.9 (0 points) 20-29.9 (2 points) < 20 (4 points) ___________________________
WBC Count(10^3/mm3)
	>= 40 (4 points) 20-39.9 (2 points) 15-19.9 (1 point) 3-14.9 (0 points) 1-2.9 (2 points) < 1 (4 points) ___________________________
Glasgow Coma Score
Age (years)
	>= 75 (6 points) 65-74 (5 points) 55-64 (3 points) 45-54 (2 points) <= 44 (0 points) ___________________________
Chronic Organ Insufficiency: (1) Cirrhosis of the liver; (2) NYHA Class IV; (3) Severe COPD, Pulmonary hypertension(>40 mmHg), or Respiratory dependency; (4) On regular dialysis; (5) Immunocompromised
		None (0 points)
		Non-Surgical (5 points)
		Emergent operation (5 points)
		Elective operation (2 points)

APACH II Score:

 

Apache II Score / Predicted Mortality Rate

   0-4: 4% non-OP, 1% post-OP    5-9: 8% non-OP, 3% post-OP  10-14: 15% non-OP, 7% post-OP  15-19: 25% non-OP, 12% post-OP  20-24: 40% non-OP, 30% post-OP  25-29: 55% non-OP, 35% post-OP  30-34: 75% non-OP, 75% post-OP  ≥35: 85% non-OP, 88% post-OP  

Reference: Knaus WA, Draper EA, Wagner DP, Zimmerman JE (1985). "APACHII: a severity of disease calssification system". Critical Care Medicine 13 (10): 818-29.