Description

The Emergency Severity Index Version 4 is used to triage a patient in the Emergency Department. It is developed by the ESI Research Team, LLC.


Parameters:

(1) need for life-saving intervention immediately

(2) high risk situation

(3) confused, lethargic or disoriented

(4) level of pain and distress

(5) number of different resources needed (laboratory tests other than point of care, ECG, X-ray, CT/MRI, IV fluids, parenteral drugs, specialty consultation, simple procedure, etc)

(6) age in years

(7) heart rate in beats per minute

(8) respiratory rate in breaths per minute

(9) oxygen saturation in percent by pulse oximetry

 

Age, heart rate, respiratory rate and oxygen saturation were used to determine the number of vital signs in the danger zone.

 

Parameter

Age

Finding

Points

heart rate

< 3 months

<= 180

0

 

< 3 months

> 180

1

 

3 to 36 months

<= 160

0

 

3 to 36 months

> 160

1

 

3 to 8 years

<= 140

0

 

3 to 8 years

> 140

1

 

> 8 years

<= 100

0

 

> 8 years

> 100

1

respiratory rate

< 3 months

<= 50

0

 

< 3 months

> 50

1

 

3 to 36 months

<= 40

0

 

3 to 36 months

> 40

1

 

3 to 8 years

<= 30

0

 

3 to 8 years

> 30

1

 

> 8 years

<= 20

0

 

> 8 years

> 20

1

oxygen saturation

NA

>= 92%

0

 

NA

< 92%

1

 

score for dangerous vital signs =

= SUM(points for the 3 parameters)

 

Life Saving Needed

High Risk Situation

Confused, Lethargic, Disoriented

Pain and Distress

Resources Needed

Danger Vital Signs

Triage Level

Yes

NA

NA

NA

NA

NA

1

No

Yes

NA

NA

NA

NA

2

No

NA

Yes

NA

NA

NA

2

No

NA

NA

severe

NA

NA

2

No

No

No

not severe

>=2

>= 1

2

No

No

No

not severe

>=2

0

3

No

No

No

not severe

1

NA

4

No

No

No

not severe

0

NA

5

 

where:

If any of danger vital signs are present for a patient assigned to priority 4 or 5 then a higher triage level would probably be warranted. This scenario would be unlikely since more resources would be used.


To read more or access our algorithms and calculators, please log in or register.