Which scale of contrast is described as having fewer shades of gray, displaying more black and white?
long scale
mid scale
low scale
high scale
high scale
Rationale: High scale or short contrast is a scale of contrast with greater differences between the shades, making the contrast scale more black and white.
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What is the primary function of leukocytes?
A. protection against invading microorganisms B. transport of nutrients C. body temperature regulation D. clot formation
Which of the following is the method for the insertion of a nasopharyngeal airway?
a. Upside-down and then turned b. Parallel to the nasal pharynx floor c. Parallel to the long axis of the nose d. Perpendicular to the floor of the nasal pharynx
The control console is located behind a protective barrier or shield where the radiographer stands during the x-ray exposure
Indicate whether the statement is true or false
The "Patient Safety Systems" (PS) chapter does not
A. explain how hospitals can evaluate the status and progress of their patient safety systems B. discuss how hospitals can develop into learning organizations C. contain any new standards or requirements