What is the U.S. Food and Drug Administration (FDA) purity standard for O2?

a. 21%
b. 90%
c. 95%
d. 99%


ANS: D
FDA standards require an O2 purity of at least 99.0%.

Health Professions

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Indicate whether the statement is true or false

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Fill in the blank(s) with correct word

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Patients who can receive medical benefits under Medicare include

A) any person without health insurance who is a U.S. citizen B) citizens 65 years of age and older C) children under the age of 18 D) all of the above

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Nebulizers using the Babington principle:

I. are pneumatic II. may provide cool aerosol III. may provide heated aerosol IV. have small particle size outputs A) I B) I and II C) I, II, and III D) I, II, III, and IV

Health Professions