Heliox has been used on a limited basis to treat patients with which of the following?
a. Hyperventilation c. Airway obstructions
b. Thermal burns d. Upper respiratory infections
ANS: C
Specifically, heliox has been used to manage asthmatic patients with acute respiratory failure, to treat postextubation stridor in pediatric trauma patients, as an adjunct in the treatment of pediat-ric patients with refractory croup, to administer anesthetic gases to patients via small-diameter endotracheal tubes, and to provide ventilatory support for patients with severe airway obstruction caused by chronic bronchitis and emphysema.
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A. moderate stage B. mild stage C. severe stage D. final stage
Which of the following best describes the correct positioning of a restrained patient?
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A. a copy of the surgeon's matrix B. estimated length of time for the procedure C. the physician's current diagnosis D. preoperative instructions for the patient
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a. active transport b. passive transport c. dissolution d. vasoconstriction