In which of the following situations is pressure-controlled ventilation sometimes used?
1. When a precise PaCO2 has to be maintained (some closed-head injuries)
2. When more even distribution of ventilation is required
3. When ventilating patients with severe, refractory hypoxemia
4. When tidal volume in unstable due to leaks
a. 1 and 2 only
b. 3 and 4 only
c. 1, 2, and 3 only
d. 1, 3, and 4 only
ANS: B
Pressure-controlled continuous mandatory ventilation is indicated when adequate oxygenation has been difficult to achieve in other modes of ventilation. The instability of tidal volume caused by airway leaks can be minimized by using pressure-controlled ventilation rather than vol-ume-controlled ventilation.
You might also like to view...
What is the best way to train office staff on a medical management software system?
A. Give a test on the use of the software B. Offer onsite training by the software manufacturer C. Provide staff with a resource manual D. Utilize the manufacturer call-in site
Standard curves are necessary for which coagulation procedures?
a. Thrombin time b. Specific factor assays c. Fibrinogen assay d. Both specific factor assays and fibrinogen assay
Where did you set the label "10 --minute visit," which appeared in the title of the window?
What will be an ideal response?
What does the "PCS" in ICD-10-PCS stand for?
What will be an ideal response?