What Does EWSS Do?

Vital signs are measured, from which a score is calculated. Action is then triggered according to the score (Table 1).

EWSS aim to pick up problems earlier than isolated signs and are useful as repeated measurements to track progress over time. They are not prognostic indicators.

3

2

1

0

1

2

3

SBP (mm Hg)

<70

71-80

81-100

101-199

≥200

Pulse rate (bpm)

<40

41-50

51-100

101-110

111-129

≥130

Respiratory rate (bpm)

<9

9-14

15-20

21-29

≥30

Temperature (C)

<35

35-38.4

≥38.5

AVPU score

Alert

Reacting to voice

Reacting to pain

Unresponsive

Table 1 Modified early warning score