Which of the following respiratory hazards can be protected against using high-efficiency particulate (HEPA) filters?
A. Oxygen levels
B. Gases and vapors
C. Airborne pathogens
D. Elevated temperatures
C
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Excessive amounts of acid in the tissues, in sum total called a(n) ____, can be devastating to proteins within the cells.
A. alkali content B. pH reading C. carbonate load D. acid load
Gracey curettes are designed to be used ____________
a. in specific areas of the mouth only b. throughout the mouth c. interproximally d. none of the above
Which of the following methods should be used to clean the work surfaces in the examination room, including the examining table, sink, and countertop?
A. Sanitization B. Ultrasonic cleaning C. Sterilization D. Disinfection E. Fumigation
"The pain started 2 days ago" is what kind of element?
a. Location b. Onset c. Quality d. Timing