If the volume ventilator is used for preoxygenation and preventilation prior to suctioning a patient,you must wait up to 2 minutes,depending on the rate and the tidal volume,before the patient receives 100% oxygen.What is the reason for this?
A) Vagus nerve stimulation
B) Suction catheter size
C) The invagination of the airway mucosal tissue
D) The effects of the wash-out volume

Question

Quizplus · Accepted Answer

Ventilators that incorporate an internal reservoir or accumulator will have larger washout volumes than those that don't.If the volume ventilator is used for preoxygenation and hyperinflation prior to suctioning the patient,you must wait up to 2 minutes,depending on the ventilator and the patient's tidal volume and respiratory rate after the FIO₂ is set to 1.00,before the patient actually receives 100%-oxygen.

If the Volume Ventilator Is Used for Preoxygenation and Preventilation