Injury Severity Score - Determining The Seriousness Of Injuries
There is a standard way of establishing the gravity of the injuries sustained by an individual. The Injury Severity Score (ISS) helps doctors assess the physical damage in certain parts of the body. the good news is that ISS calculators can be found online.
Author:Dr. Bill ButcherOct 21, 202279.4K Shares2M Views
The Injury Severity Score(ISS) is an anatomical scoring system that provides an overall score for patients with multiple injuries.
Each injuryis assigned an Abbreviated Injury Scale (AIS) score, allocated to one of six body regions:
- head
- face
- chest
- abdomen
- extremities (including pelvis)
- external
Only the highest AIS score in each body region is used.
The three most severely injured body regions have their score squared and added together to produce the ISS score.
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ISS Calculator
The ISS Calculator can be found online. One just simply needs to input the right details and the computation will be performed online on someone’s behalf.
The parts of the body under the “Abbreviated Injury Scale” include the Head, Face, Chest, Abdomen, Extremities, and External.
In her article published by MDCalc.com, Dr. Susan Baker, an epidemiologist at Johns Hopkins Bloomberg School of Public Healthwho specializes in injury prevention, identified seven descriptions for a specific injury.
For example, the question is: “Head and neck worst injury?” The following are the answers (as mentioned by Dr. Baker) to arrive at an Injury Severity Score:
- No injury
- Minor
- Moderate
- Serious
- Severe
- Critical
- Unsurvivable
ISS Calculation
A sample calculation for an Injury Severity Score is shown below:
1. First example
a. Region - head and neck
b. Injury Description - cerebral contusion
c. Abbreviated Injury Scale (AIS) - 3
d. Square Top Three - 9
2. Second example
a. Region - face
b. Injury Description - no injury
c. AIS - 0
d. Square Top Three - none
3. Third example
a. Region - chest
b. Injury Description - flail chest
c. AIS - 4
d. Square Top Three - 16
4. Fourth example
a. Region - abdomen
b. First Injury Description - minor contusion of liver
c. AIS - 2
d. Second Injury Description - complex rupture spleen
e. AIS - 5
f. Square Top Three - 25
5. Fifth example
a. Region - extremity
b. Injury Description - fractured femur
c. AIS - 3
d. Square Top Three - none
6. Sixth example
a. Region - external
b. Injury Description - no injury
c. AIS - 0
d. Square Top Three - (blank)
Add all the scores under “Square Top Three” and the Injury Severity Score is 50.
Dr. Bill Butcher
Author
With more than two decades of experience, Dr. Bill Butcher aims to provide a repository for educational materials, sources of information, details of forthcoming events, and original articles related to the medical field and about health subjects that matter to you. His goal is to help make your life better, to help you find your way when faced with healthcare decisions, and to help you feel better about your health and that of your family.
Bill received his medical degree at Boston University School of Medicine and spent his entire career helping people find the health and medical information, support, and services they need. His mission is to help millions of people feel fantastic by restoring them to optimal health.
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