How are physical exam findings scored in the pneumonia severity index (PSI) for bacterial pneumonia?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Physical examination findings are scored as follows:

  • Altered mental status – Add 20 points

  • Respiratory rate of 30 breaths or more per minute – Add 20 points

  • Systolic blood pressure less than 90 mmHg – Add 20 points

  • Temperature less than 35°C or that is 40°C or higher – Add 15 points

  • Pulse greater than 125 bpm – Add 10 points

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