Which assessments are used to evaluate the severity of bacterial pneumonia?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Tools to assess the severity of disease and risk of death include the PSI/PORT (ie, pneumonia severity index/Patient Outcomes Research Team score), the CURB-65 (ie, confusion, urea, respiratory rate, blood pressure, and age >65 years) system, and the APACHE (ie, acute physiology and chronic health evaluation), among others.

The following laboratory tests are also useful for assessing illness severity:

  • Serum chemistry panel

  • Arterial blood gas (ABG) determination

  • Venous blood gas determination (central venous oxygen saturation)

  • Complete blood cell (CBC) count with differential

  • Serum free cortisol value

  • Serum lactate level

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