Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?
a. Evaporative cooling
b. Mechanical baffling
c. Fractional distillation
d. High-frequency vibrations
ANS: D
This crystal transducer converts radio waves into high-frequency mechanical vibrations (sound).
Health Professions
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The all-capital initials of the author followed by the all-lowercase initials of the typist are:
A) reference initials. B) proofreader's marks. C) fonts. D) logos.
Health Professions
Which is a diagnostic tool used to determine the extent of a craniofacial deformity?
a. MRI b. CT scan c. Manual sketches of the facial formations d. PET scan
Health Professions