ADD THESE TO YOUR MECHANICAL VENTILATION STUDY GUIDE
15. INSPIRATORY FLOW RATE ⭐
What is inspiratory flow?
Flow = how FAST the ventilator delivers the breath.
Usually expressed in L/min.
For volume control:
Flow (L/min) = VT (L) ÷ Ti (sec) × 60
Example:
VT = 600 mL = 0.6 L
Ti = 1 second
0.6 ÷ 1 × 60 = 36 L/min
A constant inspiratory flow around 60 L/min is commonly used when assessing mechanics in volume assist-control, although actual appropriate flow depends on the patient’s needs. HIGH-YIELD FLOW RULE
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