Fire extinguishers designed for protection of cooking appliances that use vegetable oil must be labeled what class of fire?
a. B
b. K
c. A
d. D
b. K
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What is the advantage of using a silver-plated or a silver-coated endotracheal tube?
A. Such a tube shows up better on an A-P portable chest x-ray. B. Silver has strong bacteriostatic properties. C. They provide an easier method for endotracheal suctioning. D. Silver tube cuffs require less inflation pressure than do conventional ET tubes.
Which part of the conduction system has a firing rate of 60 to 100?
A. Purkinje fibers B. AV node C. SA node D. Bundle branches
Approximately how many fatal poisonings occur in the United States every year?
A. 1,000 B. 2,000 C. 4,000 D. 10,000
Historically, which of the following best describes the primary responsibility of public health?
A. To ensure a clean supply of water B. The preservation of society and prevention of disease C. Research into new technology D. To ensure an adequate supply of physicians and health care