Table 13 - Apache II -- Severity of Disease Classification System


 
HIGH ABNORMAL RANGE
 
LOW ABNORMAL RANGE
Physiological variable
+4
+3
+2
+1
0
+1
+2
+3
+4

TEMPERATURE ( ° C )

> 41°
39 ° - 40.8 °
 
35.5 ° - 38.9 °
36 ° - 38.4 °
34 ° - 35.8 °
32 ° - 33.9 °
30 ° - 31.9 °
< 29.9 °

MEAN ARTERIAL PRESSURE (mm Hg)

> 160
130 - 159
 
 
70 - 109
 
50-69
 
< 49

HEART RATE (ventricular response)

> 180
140 - 178
 
 
70 - 109
 
55-69
 
< 39


RESPIRATORY RATE

(non ventilated or ventilated)

> 50
35 - 49
 
 
12 - 24
 
6 - 9
 
< 5


OXYGENATION

 


> 500
...........

350 - 498
...........

200 - 349
...........
 

< 200
...........

PO, > 70

200 - 349

...........

PO, 61 - 70

200 - 349
...........

200 - 349

...........

PO, 55-60

200 - 349

...........

PO, < 55

ARTERIAL pH

> 7.7
7.6 - 7.69
 
7.5 - 7.59
7.33 - 7.49
 
7.15 - 7.32
7.15 - 7.24
< 7.15

SERUM SODIUM (meg/dl)

> 180
160 - 179
155 - 159
150-154
130 - 149
 
120 - 129
111 - 119
< 110

SERUM POTASSIUM (meg/dl)

> 7
6 - 6.9

5.5 - 5.9
3.5 - 5.4
3 - 3.4
2.5 - 2.9
 
< 2.5

SERUM CREATININE (mg/100 ml)

> 3.5
2 - 3.4
1.5 - 1.9
0.6 - 1.4
 
 
< 0.6
 
 

HEMATOCRIT (%)

> 60
 
50 - 59.9
48 - 49.9
30 - 45.9
 
20-29.9
 
< 20

WHITE BLOOD COUNT (total/mm3) (in 1000s)

> 40
 
20 - 39.9
15 - 19.9
3 - 14.9
 
1-2.9
 
< 1


GLASGOW COMA SCORE
(GCS)
(score 15 minus actual GCS)

 
 
 
 
 
 
 
 
 


Total ACUTE PHYSIOLOGY SCORE
(APS)
Sum of the 12 individual variable points

 
 
 
 
 
 
 
 
 

SERUM HCO3

> 52
41 - 51.9
 
32 - 40.9
22 - 31.9
 
18 - 21.9
15 - 17.9
< 15



AGE POINTS

Assign points to age as follows:

AGE (yrs)
POINTS
< 44
0
45 - 54
2
55 - 64
3
65 - 74
5
> 75
6



 

 

 

 

CHRONIC HEALTH POINTS

If the patient has a history of severe organ system deficiency or is immuno - compromised, assign points as follows:


a. For nonoperative or emergency postoperative patients (5 points)

b. for selective postoperative patients
(2 points)


DEFINITIONS:
Organ insufficiency or immuno-compromised state must have been evident prior to the hospital admission and conform to the following criteria.


LIVER:
Biopsy proven cirrhosis and documented portal hypertension episodes of past upper GI bleeding attributed to portal hypertension:
prior episodes of hepatic failure/encephalopathy/coma.

RESPIRATORY:
Chronic restrictive, obstructive, or vascular disease resulting in severe exercise restriction.

Unable to climb stairs or perform household duties: or documented chronic hypoxia, hypercapnia, secondary polycythemia, severe pulmonary hypertension ( > 40mmHg), or respirator dependancy.


RENAL:
Recurring chronic dialysis

IMMUNO-COMPROMISED:
The patient has received therapy that suppresses resistance to infection [e.g. immuno-suppresion, chemotherapy, radiation, long-term or recent high dose steroids] or has a disease that is sufficiently advanced to suppress resistance to infection [e.g. leukemia, lymphoma, AIDS]

APACHE SCORE [ sum of A+B+C ]

A. APS points

B. Age points

C. Chronic health points


TOTAL APACHE SCORE