Rapid Shallow Breathing Index (RSBI) Calculator

Free calculate Rapid Shallow Breathing Index (RSBI). This is an educational tool only - always consult a healthcare provider.

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About RSBI

  • • RSBI = Respiratory Rate / Tidal Volume (L)
  • • RSBI <105: Likely to wean successfully
  • • RSBI ≥105: Higher risk of weaning failure
  • • Used to assess readiness for extubation
  • • Should be used with other clinical factors