All intermittent positive-pressure breathing machines are required to have an operating gas pres-sure source of _____ lb force per square inch gauge (psig)

a. 25 to 35 c. 45 to 55
b. 35 to 45 d. 55 to 65


ANS: C
Regardless of the manufacturer, all intermittent positive-pressure breathing machines require a 45-psig to 55-psig gas pressure source, such as a compressed gas cylinder, a bulk air or oxygen system, or an air compressor.

Health Professions

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Multiply the following fractions and mixed numbers. Express answers in lowest terms, using mixed numbers when possible

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Health Professions

A route of drug administration is a way in which the drug gains access to the body. Routes that bypass the gastrointestinal tract are called:

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Health Professions