A ________ is an instrument or machine used in the diagnosis, prevention, monitoring, treatment, or alleviation of disease that is recognized in the National Formulary or USP

To ensure that the output of a blood gas analyzer is both accurate and linear across the range of measured values, a calibration procedure must measure what?

a. Two different parameters at the same time b. Parameters with known input values at one point c. Two different parameters at different times d. Parameters with known input values at two points

In the third National Health and Nutrition Examination Survey (NHANES III), how many adults were found to have gingivitis?

A) 20% B) 50% C) 70% D) 75% E) None of the above