Which of the Following Are Guidelines When Utilizing High-Frequency Jet

Which of the following are guidelines when utilizing high-frequency jet ventilation (HFJV)
I.To increase PaCO₂, decreasing HFJV peak inspiratory pressure is the best option.
II.To increase PaCO₂, increasing HFJV peak inspiratory pressure is the best option.
III.In the presence of atelectasis, decrease positive end-expiratory pressure and add intermittent mandatory ventilation 5 to 10 breaths temporarily.
IV.In the presence of atelectasis, increase positive end-expiratory pressure and add intermittent mandatory ventilation 5 to 10 breaths temporarily.
V.In the absence of atelectasis.increase FiO₂.
VI.In the absence of atelectasis, decrease FiO₂
VII.Monitor servo pressure changes.

A) I, III, V, and VII
B) I, IV, V, and VII
C) II, III, V1, and VII
D) II, IV, VI, and VII