Indication of high frequency jet ventilation:
|A||Microlaryngeal surgery (MLS)|
|D||All of the above|
All of the above
In certain situations where it is not possible to deliver adequate tidal volume, the minute volume is compensated by high frequency. These conditions are:
Bronchoscopy because port of ventilator is very narrow.
Microlaryngeal, tracheal and bronchial surgeries where glottis or lumen is so narrowed that only a small size catheter can be negotiated.
Emergency cricothyroidotomy where patient is to be ventilated through needle.
Bronchopleural fistula where delivery of tidal volume can cause pneumothorax.