What ventilatory strategy has been found to be useful for avoiding barotrauma in the treatment of patients with ARDS?
a. Prolonged expiratory time
b. Permissive hypercapnia
c. Inverse ratio ventilation
d. Intermittent mandatory ventilation
ANS: B
In patients with ARDS, it is desirable to maintain lower tidal volumes and thus avoid volutrau-ma. The goal of reducing tidal volume and controlling ventilatory rate is achieved at the expense of considerable CO2 retention in patients with ARDS. In most cases, the PaCO2 increases from 60 to 80 mm Hg and the arterial pH decreases to approximately 7.25. Subsequent metabolic compensation tends to correct the acidosis over several days. In some cases, the acidosis is more severe but appears to be well tolerated so long as tissue oxygenation is maintained. This ventila-tory strategy has been designated "permissive hypercapnia."
You might also like to view...
Which of the following describes how platelet clumping artificially alters platelet parameters?
a. Increases both the PDW and the MPV b. Decreases both the PDW and the MPV c. Increases the PDW and decreases the MPV d. Decreases the PDW and increases the MPV
The stated reasons for introducing telemedicine into the ________ of at least 27 states and the federal system are cost-containment, security, and enhanced medical care.
Fill in the blank(s) with the appropriate word(s).
The female body is reproductively immature until about age:
A. 10 B. 12 C. 13 D. 18
Which of the following DEA forms is used to record the breakage or spillage of a controlled substance in a pharmacy?
DEA Form 224 DEA Form 222 DEA Form 106 DEA Form 41