initiate SBT when ventilator is at lowest setting

• related: SBT and SAT spontaneous awakening and breathing trials
• tags: #permanent

When on PRVC, lowest setting means 40% FiO2 or less, PEEP < 8. SBT means PS 5/5.

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• SBT and SAT spontaneous awakening and breathing trials
  • initiate SBT when ventilator is at lowest setting