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Modified Early warning System for ill or deteriorating patients (MEWS)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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MEWS: An Example of a Modified Early warning System for ill or deteriorating patients

Score

3

2

1

0

1

2

3

Heart Rate per min.

<= 30

31-40

41-50

51-100

101-110

111-129

>=130

Systolic BP mmHg

<70

71-80

81-100

101-179

180-200

>200

>240

Resp. Rate per min.

<9

9-14

15-20

21-29

>=30

Temperature Centigrade

<35

35-38.4

>= 38.5

CNS response

Alert

Voice

Pain

Unresponsive

Urine output* ml/kg/hr

Nil

<0.5

<1.0

1.0-1.5

>1.5

  • triggers score may be individualised to patients but Scores greater than 5 or any reduction in Oxygen Saturation to less than 95% would trigger a highly skilled emergency assessment and treatment
  • * In the last 4 hours

Contributor: Dr Ralph Mitchell BSc (hons) MBChB (June 2011)

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