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Unusual Curves on the Ventilator Screen

Last update: Sunday, 03 Nov 2019 at 01:34

A 45 year old male patient is on mechanical ventilation. He is in the resolution phase of ARDS. Sedation was stopped one hour ago and he is in the AC­-VCV mode. The on-call physician sees the following curves on the ventilator screen:

What is the best explanation for what is happening?

a) Ineffective effort due to auto­PEEP
b) Ineffective effort due to weak muscle activity
c) Normal recovery of the patient's respiratory drive

Show answer