In Which of the Following Situations Is Pressure-Controlled Ventilation Sometimes

question 78

Multiple Choice

In which of the following situations is pressure-controlled ventilation sometimes used?
I.when a precise PaCO₂ has to be maintained (some closed-head injuries)
II.when more even distribution of ventilation is required
III.when ventilating patients with severe, refractory hypoxemia
IV.when tidal volume in unstable due to leaks

• A)I and II
• B)III and IV
• C)I, II, and III
• D)I, III, and IV

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Definitions:

Optic Nerve

A cranial nerve that transmits visual information from the retina to the brain for visual perception.

Pupil

The pupil is the opening in the center of the iris of the eye, through which light enters the eye and is focused on the retina.

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the diameter and size of the pupil.

Lamellated Corpuscle

A specialized nerve ending found in the skin and mucous membranes, responsible for sensing pressure and vibration.