Evid Based Nurs 10:91 doi:10.1136/ebn.10.3.91
  • Quality improvement

Including a weaning predictor in the daily assessment of weaning readiness increased mechanical ventilation weaning time

 Q In patients receiving mechanical ventilation, does including a weaning predictor in the daily assessment of weaning readiness reduce weaning time?



randomised controlled trial.




blinded (patients, healthcare providers, and respiratory therapists). The respiratory care practitioner who assessed readiness for weaning was not blinded.

GraphicFollow up period:

to hospital discharge or death.


intensive care units (ICUs) of 3 hospitals in the US and Canada.


304 patients >18 years of age (mean age 65 y, 54% men) who had acute respiratory failure and had been on mechanical ventilation for ⩾24 hours (median 2 d). Exclusion criteria included expected survival <48 hours and primary neurological event without expectation for recovery.


all patients underwent a daily screen by a respiratory care practitioner to assess readiness for weaning from the ventilator, including measurement of frequency tidal volume ratio …

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