Respiratory discomfort while on PCV, where is the problem?
Last update: Tuesday, 21 Jan 2020 at 14:54
A 72 year old woman with aspiration pneumonia was mechanically ventilated on pressure controlled ventilation (PCV). The attending physician noted respiratory discomfort and the following curves were seen on ventilator's screen.
The pulmonary auscultation revealed no adventitious sounds, and the endotracheal tube had been recently aspirated with copious purulent secretions.
Which of the following problems would be the most plausible cause of the patient’s discomfort?
a) Bronchospasm
b) Pressure overshooting
c) Partial obstruction of an HME filter
d) Double cycling due to low inspiratory time
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