Which of the following statements regarding intensifying screens is correct?
a. The larger the crystal size, the more radiation required to produce an image.
b. The thicker the emulsion, the faster the speed of the screen.
c. Larger crystals produce an image with greater resolution than smaller crystals.
d. Calcium tungstate crystals produce a latent image with less radiation exposure than rare earth screens.
b. The thicker the emulsion, the faster the screen speed, requiring less radiation to produce an image. However, thicker emulsion is more likely to produce a less sharp image.
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An examination of the circulation on the opposite side on which catheterization is performed:
A) lateral. B) ipsilateral. C) innominate. D) contralateral.
Answer the following statement(s) true (T) or false (F)
1. A vector is an inanimate object. 2. A vaccine is administered to stimulate the body’s immune system. 3. PPEs, or personal protective equipment, refer only to face masks. 4. Facemasks are used by the health care worker or the patient. 5. A face shield covers the nose and mouth only.
What is the purpose of the medical specialty of anesthesia?
A) oversee operative procedures B) manage a patient's status C) prevent patient trauma D) position the patient
The central ray is directed to exit what point for the PA skull?
glabella nasal bones hairline nasion