SMRT CO Score for Pneumonia Severity

 

Blood pressure and CXR factors
		Systolic BP <90 mmHg (2 points)
		Multiple lobes involved on chest x-ray (1 point)
Respiration/Age factor
		Any age: respiratory rate less than 25 breaths/minute (0 points)
		50 years old or younger: respiratory rate 25 breaths/minute or more (1 point)
		Over 50 years old: respiratory rate 30 breaths/minute or more (1 point)
Cardiovascular factor
		Tachycardia of 125 beats/minute or more (1 point)
Mental status factor
		Confusion (acute) (1 point)
Oxygenation/Age factors
		Any age: O2 Saturation ≥94% (0 points)
		50 years old or younger: O2 Saturation ≤93% (2 points)
		Over 50 years old: O2 Saturation ≤90% (2 points)

 

Total Criteria Point Count:
 

 

SMRT CO Score and Risk for Ventilation or Vasopressor Support

 

0 points:	Very low risk
1 point:	Low risk (approximately 5%)
2 points:	Moderate risk (approximately 10%)
3 points:	High risk (approximately 17%)
4 to 8 points:	Very high risk (approximately 33%)

 

 

References

1. Charles PG, Wolfe R, Whitby M, Fine MJ, Australian Community-Acquired Pneumonia Study Collaboration, et al. SMART-COP: a tool for predicting the need for intensive respiratory or vasopressor support in community-acquired pneumonia. Clin Infect Dis. 2008 Aug 1;47(3):375-84. doi: 10.1086/589754. PubMed ID: 18558884