ID

28661

Description

APACHE II is a severity of disease classification system. It uses a point score based upon initial values of 12 routine physiologic measurements, age, and previous health status to provide a general measure of severity of disease. When APACHE II scores are combined with an accurate description of disease, they can prognostically stratify acutely ill patients and assist investigators comparing the success of new or differing forms of therapy. This scoring index can be used to evaluate the use of hospital resources and compare the efficacy of intensive care in different hospitals or over time. Reference: Knaus, W. A., Draper, E. A., Wagner, D. P., & Zimmerman, J. E. (1985). APACHE II: a severity of disease classification system. Critical care medicine, 13(10), 818-829.

Keywords

Versions (3)
  1. 12/16/17 12/16/17 -
  2. 1/25/18 1/25/18 -
  3. 1/25/18 1/25/18 -
Copyright Holder

William A. Knaus; Elizabeth A. Draper; Douglas P. Wagner; Jack E. Zimmermann

Uploaded on

January 25, 2018

DOI

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License

Creative Commons BY-NC 3.0
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APACHE II

English

APACHE II

1 forms  
  1. StudyEvent: ODM
    1. APACHE II
Acute Physiology Score (APS)
Description

Acute Physiology Score (APS)

Temperature (rectal)
Description

Temperature

Data type

float

Measurement units
  • °C
Alias
UMLS CUI [1]
C0039476
Mean arterial pressure
Description

Mean arterial pressure

Data type

integer

Measurement units
  • mmHg
Alias
UMLS CUI [1]
C0513528
Heart rate (vetricular response)
Description

Heart rate

Data type

integer

Measurement units
  • beats/min
Alias
UMLS CUI [1]
C0018810
Respiratory Rate (non-ventilated or ventilated)
Description

Respiratory Rate

Data type

integer

Measurement units
  • breaths/min
Alias
UMLS CUI [1]
C0231832
Oxygenation: AaDO2
Description

Record AaDO2 or PaO2: a. FiO2≥0.5 record AaDO2. b. FiO2<0.5 record only PaO2.

Data type

integer

Measurement units
  • mmHg
Alias
UMLS CUI [1]
C0231940
Oxygenation: PaO2
Description

Record AaDO2 or PaO2: a. FiO2≥0.5 record AaDO2. b. FiO2<0.5 record only PaO2.

Data type

integer

Measurement units
  • mmHg
Alias
UMLS CUI [1]
C0202155
Arterial pH
Description

Arterial pH

Data type

integer

Alias
UMLS CUI [1]
C0003840
Serum Sodium
Description

Serum Sodium

Data type

integer

Measurement units
  • mmol/L
Alias
UMLS CUI [1]
C0523891
Serum Potassium
Description

Serum Potassium

Data type

integer

Alias
UMLS CUI [1]
C0202194
Serum Creatinine
Description

Double point score for acute renal failure.

Data type

integer

Measurement units
  • mg/dL
Alias
UMLS CUI [1]
C0201976
Acute renal failure
Description

In case of acute renal failure, double point score Serum Creatinine.

Data type

boolean

Alias
UMLS CUI [1]
C0022660
Hematocrit
Description

Hematocrit

Data type

integer

Measurement units
  • %
Alias
UMLS CUI [1]
C0018935
White Blood Cell Count
Description

White Blood Cell Count

Data type

integer

Measurement units
  • 10^9/L
Alias
UMLS CUI [1]
C0023508
Glasgow Coma Score (GCS)
Description

Score = 15 - actual GCS

Data type

integer

Alias
UMLS CUI [1]
C1271007
APS points
Description

Sum of the 12 individual variable points.

Data type

integer

Alias
UMLS CUI [1]
C0451480
Age score
Description

Age score

Age
Description

Age

Data type

integer

Measurement units
  • YEARS
Alias
UMLS CUI [1]
C0001779
Age points
Description

Age points

Data type

integer

Alias
UMLS CUI [1]
C0001779
Chronic Health score
Description

Chronic Health score

Chronic health
Description

Chronic health

Data type

integer

Alias
UMLS CUI [1]
C0018759
Chronic health points
Description

Chronic health points

Data type

integer

Measurement units
  • 0
Alias
UMLS CUI [1]
C0018759
0
Total Score
Description

Total Score

Total APACHE II Score
Description

APS points + Age points + Chronic health points

Data type

integer

Alias
UMLS CUI [1]
C0489438
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Similar models

APACHE II

1 forms
  1. StudyEvent: ODM
    1. APACHE II
Name
Type
Description | Question | Decode (Coded Value)
Data type
Alias
Item Group
Acute Physiology Score (APS)
Item
Temperature (rectal)
float
C0039476 (UMLS CUI [1])
Temperature
Code List
Temperature (rectal)
CL Item
36-38.4 (0)
CL Item
34-35.9 OR 38.5-38.9 (1)
CL Item
32-33.9 (2)
CL Item
30-31.9 OR 39-40.9 (3)
CL Item
≤29.9 OR ≥41 (4)
Item
Mean arterial pressure
integer
C0513528 (UMLS CUI [1])
Mean arterial pressure
Code List
Mean arterial pressure
CL Item
70-109 (0)
CL Item
50-69 OR 110-129 (2)
CL Item
130-159 (3)
CL Item
≤49 OR ≥160 (4)
Item
Heart rate (vetricular response)
integer
C0018810 (UMLS CUI [1])
Heart rate
Code List
Heart rate (vetricular response)
CL Item
70-109 (0)
CL Item
55-69 OR 110-139 (2)
CL Item
40-54 OR 140-179 (3)
CL Item
≤39 OR ≥180 (4)
Item
Respiratory Rate (non-ventilated or ventilated)
integer
C0231832 (UMLS CUI [1])
Respiratory Rate
Code List
Respiratory Rate (non-ventilated or ventilated)
CL Item
12-24 (0)
CL Item
10-11 OR 25-34 (1)
CL Item
6-9 (2)
CL Item
35-49 (3)
CL Item
≤5 OR ≥50 (4)
Item
Oxygenation: AaDO2
integer
C0231940 (UMLS CUI [1])
Oxygenation
Code List
Oxygenation: AaDO2
CL Item
<200  (0)
CL Item
200-349  (2)
CL Item
350-499 (3)
CL Item
≥500  (4)
Item
Oxygenation: PaO2
integer
C0202155 (UMLS CUI [1])
Oxygenation
Code List
Oxygenation: PaO2
CL Item
>70 (0)
CL Item
61-70  (1)
CL Item
55-60  (3)
CL Item
<55  (4)
Item
Arterial pH
integer
C0003840 (UMLS CUI [1])
Arterial pH
Code List
Arterial pH
CL Item
7.33-7.49 (0)
CL Item
7.5-7.59 (1)
CL Item
7.25-7.32 (2)
CL Item
7.15-7.24 OR 7.6-7.69 (3)
CL Item
<7.15 OR ≥7.7 (4)
Item
Serum Sodium
integer
C0523891 (UMLS CUI [1])
Serum Sodium
Code List
Serum Sodium
CL Item
130-149 (0)
CL Item
150-154 (1)
CL Item
120-129 OR 155-159 (2)
CL Item
111-119 OR 160-179 (3)
CL Item
≤110 OR ≥180 (4)
Item
Serum Potassium
integer
C0202194 (UMLS CUI [1])
Serum Potassium
Code List
Serum Potassium
CL Item
3.5-5.4 (0)
CL Item
3.0-3.4 OR 5.5-5.59 (1)
CL Item
2.5-2.9 (2)
CL Item
6.6-6.69 (3)
CL Item
≤2,5 OR ≥7  (4)
Item
Serum Creatinine
integer
C0201976 (UMLS CUI [1])
Serum Creatinine
Code List
Serum Creatinine
CL Item
0.6-1.4  (0)
CL Item
<0.6 OR 1.5-1.9 (2)
CL Item
2.0-3.4 (3)
CL Item
≥3.5  (4)
Acute renal failure
Item
Acute renal failure
boolean
C0022660 (UMLS CUI [1])
Item
Hematocrit
integer
C0018935 (UMLS CUI [1])
Hematocrit
Code List
Hematocrit
CL Item
30-45.9 (0)
CL Item
46-49.9 (1)
CL Item
20-29.9 OR 50-59.9 (2)
CL Item
<20 OR ≥60 (4)
Item
White Blood Cell Count
integer
C0023508 (UMLS CUI [1])
White Blood Cell Count
Code List
White Blood Cell Count
CL Item
3-14.9 (0)
CL Item
15-19.9 (1)
CL Item
1-2.9 OR 20-39.9 (2)
CL Item
<1 OR ≥40 (4)
Glasgow Coma Score
Item
Glasgow Coma Score (GCS)
integer
C1271007 (UMLS CUI [1])
Acute physiology score points
Item
APS points
integer
C0451480 (UMLS CUI [1])
Item Group
Age score
Item
Age
integer
C0001779 (UMLS CUI [1])
Age
Code List
Age
CL Item
≥44 (0)
CL Item
45-54 (2)
CL Item
55-64 (3)
CL Item
65-74 (5)
CL Item
≤75 (6)
Age points
Item
Age points
integer
C0001779 (UMLS CUI [1])
Item Group
Chronic Health score
Item
Chronic health
integer
C0018759 (UMLS CUI [1])
Chronic health
Code List
Chronic health
CL Item
patient immunocompetent and no history of severe organ-system insufficiency  (0)
CL Item
elective post-operative patient with immunocompromised state or history of severe organ-system insufficiency (2)
CL Item
nonoperative or emergency postoperative patient with immunocompromised state or history of severe organ-system insufficiency (5)
Chronic health points
Item
Chronic health points
integer
C0018759 (UMLS CUI [1])
Item Group
Total Score
Total APACHE II Score
Item
Total APACHE II Score
integer
C0489438 (UMLS CUI [1])
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