Which of these statements regarding viewing equipment is FALSE?
a. A magnifying glass may be used to aid the viewer.
b. Clear plastic film mounts help reduce glare and enhance the detail of the images.
c. Subdued room lighting is best for viewing radiographs.
d. Viewbox lighting must be of uniform intensity and evenly diffused.
b. The use of black plastic or gray cardboard mounts helps to reduce glare and enhance the detail of the images.
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Which of the following terms has a prefix that indicates without?
A) Nullipara B) Polyuria C) Asymmetrical D) Bilateral
After several cycles of lab testing on test animals, a medication can enter clinical trials for evaluation in humans. In phase III clinical trial testing:
A) the trial is expanded to include a large sample size, usually in the thousands of individuals, and establish the overall safety and effectiveness of the drug. B) the medication is compared to other medications on the market. C) consists of the drug being tested on a small number (usually 300 or less) of people with the illness or condition the drug is designed to treat. D) researchers attempt to determine the safe dose and how the medication is both absorbed and eliminated from the body.
____ produce memory cells that trigger a stronger response to future exposures to the same antigen.
A. Macrophages and lymphocytes B. T cells C. B cells D. Natural killer (NK) cells
A small amount of tissue removed from the body for examination under a microscope is a(n) ________.
A. biopsy specimen B. laceration C. abscess D. incision E. debridement