What are the minor criteria for intubation of patients using noninvasive ventilation (NIV)?

Updated: Jun 18, 2020
  • Author: Guy W Soo Hoo, MD, MPH; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Minor criteria (two of the following) are as follows:

  • Respiratory rate greater than 35 breaths/minute

  • pH less than 7.25 and decreased from onset

  • PaO2 less than 45 mm Hg despite oxygen

  • Increase in encephalopathy or decreased level of consciousness

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