Which of the following gases is used to decrease the work of breathing associated with severe airway obstruction?
a. Nitric oxide c. Helium-oxygen mixture
b. Nitrous oxide d. Carbon diox-ide–oxygen mixture
ANS: C
A helium-oxygen mixture decreases the work of breathing by decreasing turbulent airflow.
Health Professions
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A Class III standpipe and hose system uses which of the following sizes of hose and connections for the facility fire brigade?
A. 1-inch (25 mm) B. 1½-inch (38 mm) C. 2-inch (50 mm) D. 2½-inch (63 mm)
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Exophthalmos is one of the distinguishing manifestations of?
A) ?hyperthyroidism. B) ?hypothyroidism. C) ?Hasimoto's disease. D) ?Addison's disease.
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