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  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)

Important: Inputs must be complete to perform calculation.

Total Criteria Point Count:
Include literature references: Yes   No

  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%)


  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 PubMed Logo

Associated Medical Subject Headings [MeSH]
         Aged,   Community-Acquired Infections,   Female,   Humans,   Male,   Middle Aged,   Pneumonia,   ROC Curve,   Severity of Illness Index

Associated ICD10-CM Codes
   J12.9Viral pneumonia, unspecified
   J18.1Lobar pneumonia, unspecified organism
   J13Pneumonia due to Streptococcus pneumoniae
   J15.9Unspecified bacterial pneumonia
   J18.0Bronchopneumonia, unspecified organism

Associated ICD9-CM Codes
   485Bronchopneumonia org nos
   482.9Bacterial pneumonia nos
   481Pneumococcal pneumonia
   480.9Viral pneumonia nos


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