To measure PCO2, blood gas analyzers use what electrode?
a. Severinghaus
b. Clark
c. Sahn
d. White
ANS: A
To measure PCO2, blood gas analyzers use the Severinghaus electrode, which is essentially a pH electrode exposed to an electrolyte solution that is in equilibrium with the sample through a car-bon dioxide–permeable membrane.
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Which of the following agents are currently approved for administration as aerosolized mucoactive agents? 1. Dry powder mannitol 2. N-acetylcysteine (NAC) 3. Dornase alfa 4. Ipratropium bromide 5. 7% hyperosmolar saline
a. 1 and 2 only b. 2, 3, and 5 only c. 2 and 3 only d. 5 only
Innate immunity results from which of the following?
A). Exposure to external sources B). Birth C). Immunizations D). Disease exposure
A medical practice completely revises its financial policies. It is important that the facility's staff be ____________________.
Fill in the blank(s) with the appropriate word(s).
Snoring respirations in an unresponsive patient are MOST often the result of:
A) foreign body airway obstruction. B) upper airway obstruction by the tongue. C) collapse of the trachea during breathing. D) swelling of the upper airway structures.