You have responded to a local pool for a drowning patient. Lifeguards have pulled the patient out of the pool prior to your arrival. You find the 16-year-old patient unresponsive with agonal respirations and a weak carotid pulse. What is your first action?
A) Insert a Combitube.
B) Insert an oropharyngeal airway.
C) Apply high-concentration oxygen by bag-valve mask.
D) Apply high-concentration oxygen by nonrebreather mask.
B
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The anode heel effect is a phenomenon in which a nonuniform __________ occurs across an image from anode to cathode side.
Fill in the blank(s) with the appropriate word(s).
The patient with COPD may benefit from oxygen delivery through a Venturi mask because:
A) oxygen concentration is controlled more carefully. B) it delivers intermittent positive pressure to the airway. C) it both protects the airway and delivers oxygen. D) it delivers the highest oxygen concentration possible.
This is the approximate number of red blood cells in one cubic millimeter of blood
A) 5 million B) 3 million C) 1 million D) 7 million
The primary action of insulin is to promote the entry of which of the following into cells?
A) fatty acid B) amino acid C) nucleic acid D) glucose