Positive pressure ventilation creates a transairway pressure gradient by decreasing the alveolar pressures to a level below the airway opening pressure.
Answer the following statement true (T) or false (F)
False
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Which of the following describes contract—relax—stretch using reciprocal inhibition?
A) Recipient is passive through the entire stretch application. B) Recipient contracts the antagonist muscle against resistance. C) Recipient contracts the target muscle against resistance. D) Practitioner assists an active stretch.
On scene, a confused 68-year-old female patient with possible stroke has a SpO2 of 91% on room air. Regarding oxygen therapy and the adjunct by which to provide it, which of these represents the most desirable target SpO2 reading for the amount of oxygen delivered?
A) SpO2 98% with 12 lpm O2 via nonrebreather mask B) SpO2 95% with 2 lpm O2 via nasal cannula C) SpO2 100% with 15 lpm O2 via nonrebreather mask D) SpO2 100% with 6 lpm O2 via nasal cannula
The most common concentration of heliox is ______________________________
a. 50% helium:50% oxygen b. 60% helium:40% oxygen c. 70% helium:30% oxygen d. 80% helium:20% oxygen
Plasma accounts for about ________ percent of the total volume of whole blood.
A. 35 B. 55 C. 75 D. 95