Patient selection: admitted to a gastroenterology service
Parameters:
(1) heart rate in beats per minute
(2) respiratory rate in breaths per minute
(3) ACDU score (alert, confused, drowsy, unresponsive)
(4) SpO2 to FIO2 ratio
(5) serum creatinine in mg/dL
(6) serum total bilirubin in mg/dL
(7) INR
(8) serum lactate in mmol/L
|
Parameter
|
Finding
|
Points
|
|
heart rate
|
< 105
|
0
|
|
|
>= 105
|
1
|
|
respiratory rate
|
< 26
|
0
|
|
|
>= 26
|
2
|
|
ACDU score
|
0
|
0
|
|
|
1 to 3
|
2
|
|
SpO2 to FIO2 ratio
|
>= 240
|
0
|
|
|
< 240
|
2
|
|
serum creatinine
|
< 2 mg/dL
|
0
|
|
|
>= 2.0 mg/dL
|
2
|
|
serum total bilirubin
|
< 9.0 mg/dL
|
0
|
|
|
>= 9.0 mg/dL
|
2
|
|
INR
|
< 1.5
|
0
|
|
|
>= 1.5
|
2
|
|
serum lactate
|
< 3.0 mmol/L
|
0
|
|
|
>= 3.0 mmol/L
|
2
|
where:
• The ACDU score is mentioned in reference to the MEWS. Alert is scored 0 point and other 3 states from 1 to 3.
total score =
= SUM(points for all 8 paramters)
Interpretation:
• minimum score: 0
• maximum score: 15
• A score >= 6 was associated with ICU admission and reduced survival.
Perforamnce:
• The area under the ROC curve is 0.76.
