Which of the following factors need to be considered for HFV ventilator circuits?
I. Time for gas egress during exhalation
II. Circuit compliance
III. Endotracheal tube size
IV. Intrinsic timing mechanisms

Question

Quizplus · Accepted Answer

With the exception of HFCV, all HFV devices have special patient circuit considerations. Each of them must (1) use very low circuit compliance to reduce compressible volume and increase the precision of control over the small volumes delivered; (2) have intrinsic timing mechanisms to allow breathing frequencies between 4 and 28 Hz (varies by device); (3) provide control over inspiratory times and circuit design to allow sufficient time for gas egress during exhalation; (4) adequately humidify gases; and (5) include alarms and fail-safe devices for patient safety.

Which of the Following Factors Need to Be Considered for HFV