Which of the following refers to a radiographic image that is black and white with many shades of gray in between?
a. Low contrast
b. High contrast
c. Low density
d. High density
a. The term "low contrast" (also called "long-scale contrast") describes a radiograph in which the density differences between adjacent areas are small. The contrast is low and very gradual because there are many shades of gray.
Health Professions
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The safest, most reliable sources for long-term energy production are:
a. sugars b. carbohydrates c. fats d. proteins
Health Professions
What was created when the U.S. Congress passed the Highway Safety Act of 1966?
a. Department of Transportation b. Emergency Medical Services Systems Act c. National Registry of EMTs d. National Standard Curriculum
Health Professions