Ventilator Settings After Interfacility Transfer
Continue the patient's current ventilator settings from the transferring facility, then immediately reassess and adjust based on lung-protective ventilation principles: tidal volume 6-8 ml/kg predicted body weight, plateau pressure <30 cm H₂O, and PEEP ≥5 cm H₂O 1, 2.
Initial Approach Upon Arrival
When a mechanically ventilated patient arrives from another facility, the priority is continuity of care with rapid optimization:
Step 1: Maintain Current Settings Initially
- Transfer the patient to your facility's ventilator using the same mode and parameters from the sending facility 3
- This prevents acute destabilization during the transition period
- Document the transferring facility's settings completely
Step 2: Immediate Assessment and Adjustment
Verify lung-protective parameters within the first hour:
Tidal Volume: Calculate 6-8 ml/kg predicted body weight (not actual weight) 1, 2
- If current settings exceed 8 ml/kg PBW, reduce immediately
- This is a strong recommendation for all mechanically ventilated patients, particularly those with or at risk for ARDS 1
Plateau Pressure: Must be <30 cm H₂O 1, 4
- Perform an inspiratory hold maneuver to measure
- If elevated, reduce tidal volume further (even below 6 ml/kg if necessary)
Driving Pressure: Target <15 cm H₂O (plateau pressure minus PEEP) 2, 4
- This parameter has stronger association with pulmonary complications than peak pressure alone
- Often overlooked but critical for lung protection
PEEP: Start at minimum 5 cm H₂O 2, 4
- Individualize upward based on oxygenation needs and hemodynamic tolerance
- Higher PEEP (conditional recommendation) for moderate-severe ARDS 1
FiO₂: Titrate to SpO₂ 88-95% or PaO₂ 55-80 mmHg
- Avoid excessive oxygen (FiO₂ >0.6-0.8) which promotes atelectasis 4
Critical Pitfalls to Avoid
Common transfer errors:
- Accepting high tidal volumes (>8 ml/kg) because "that's what they were on" - this causes ventilator-induced lung injury
- Using actual body weight instead of predicted body weight for tidal volume calculations
- Ignoring driving pressure and focusing only on peak pressure
- Failing to reassess within the first hours after transfer when the patient may be more stable
Special Considerations
If the patient has ARDS:
- Apply all lung-protective strategies immediately 1
- For severe ARDS (PaO₂/FiO₂ <100), consider prone positioning >12 hours/day (strong recommendation) 1
- Avoid high-frequency oscillatory ventilation (strong recommendation against) 1
Mode selection:
- The specific mode (pressure vs. volume control) matters less than the parameters themselves 4
- Pressure support ventilation may reduce venous congestion and AKI risk if the patient can tolerate it 5
- Choose based on patient stability and synchrony, not dogma
Documentation Requirements
Record immediately upon arrival:
- Transferring facility's complete ventilator settings
- Your adjusted settings with rationale
- Predicted body weight calculation
- Measured plateau pressure and calculated driving pressure
- Arterial blood gas within 30-60 minutes of arrival
The evidence strongly supports lung-protective ventilation for all mechanically ventilated patients, not just those with established ARDS 1, 2. Transfer is an opportunity to optimize settings that may have been suboptimal at the referring facility.