The effects of sympathetic stimulation of the iris are:
A) vasoconstriction
B) relaxation (for far vision)
C) contraction of the circular muscle and pupil constriction
D) contraction of the radial muscle and pupil dilation
D) contraction of the radial muscle and pupil dilation
Effects of sympathetic stimulation on the iris include contraction of the radial muscle and pupil dilation (mydriasis).
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Providers who learn they are treating a work-related illness should:
a. call the employer. b. encourage the patient to report the injury to the employer. c. document the reason for the visit as non–work related. d. notify the employer in writing.
An object is brought into focus using the 10x objective lens. When the 40x objective lens is moved into position, only a minor adjustment using the fine focus adjustment is required to bring it clearly into focus
What is the term used to describe lenses with this feature? a. Parcentric b. Achromatic c. Plan-achromatic d. Parfocal
What are two stimuli that must be diminished or eliminated to reduce gagging?
What will be an ideal response?
Each of the following is a precaution that minimizes the amount of radiation a patient receives EXCEPT one. Which one is the EXCEPTION?
a. Take only necessary radiographs. b. Use the slowest film speed currently available. c. Use collimating equipment that restricts the beam size and shape. d. Cover all patients with a lead/lead-equivalent apron and thyroid shield.