Type ____ PFDs, the typical "ski-vest" style PFDs, are found on many EMS, fire, and law enforcement vehicles.
A. One
B. Two
C. Three
D. Four
Answer: C
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Indicate whether the statement is true or false
Hydrodynamic focusing is used in automated cell-counting instruments to:
a. Prevent coincidence passage through the detection aperture b. Increase the visibility of the cells passing through the aperture c. Allow for maximal light absorbance through the cells passing through the aperture d. Ensure adequate uptake of fluorescent staining by the cells
During mammography, axillary projections should be done only on request of the
a. ordering physician. b. patient. c. radiologist. d. technologist performing the examination.
The margins of the preparation are finished in a __________ preparation
a. chamfer b. shoulder c. either a or b d. neither a nor b