The SIRS score (Systemic Inflammatory Response Syndrome score) can be used to evaluate a critically ill patient.
Parameters:
(1) temperature in °C
(2) heart rate in beats per minute
(3) respiratory rate in breaths per minute
(4) absolute neutrophil count per µL
|
Parameter |
Finding |
Points |
|
temperature in °C |
< 36°C |
1 |
|
|
36 to 38°C |
0 |
|
|
> 38°C |
1 |
|
heart rate |
<= 90 beats per minute |
0 |
|
|
> 90 beats per minute |
1 |
|
respiratory rate |
<= 20 breaths per minute |
0 |
|
|
> 20 breaths per minute |
1 |
|
neutrophil count per µL |
< 4,000 per µL |
1 |
|
|
4,000 to 12,000 |
0 |
|
|
> 12,000 per µL |
1 |
where:
• The neutrophil count is specified rather than the white blood cell count.
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 4
• A score >= 2 was associated with increased mortality.
Specialty: Critical Care, Emergency Medicine, Infectious Diseases
