Kilovoltage Is Not Usually Used to Adjust Density with Film-Screen

question 117

Multiple Choice

Kilovoltage is not usually used to adjust density with film-screen imaging because

• A)it has too great an effect on patient exposure
• B)it is too difficult to determine how much it should be changed
• C)it affects contrast as well as density
• D)it affects recorded detail as well as density

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Definitions:

Substitution Effect

The change in consumption patterns due to a change in the relative prices of goods, holding the consumer's utility level constant.

Income Effect

The modification of income for people or economies and how this adjustment affects their purchasing desires for goods or services.

Inferior Good

A type of good for which demand decreases as the income of the consumer increases, typically because consumers can afford better alternatives.

Substitution Effect

The change in consumption patterns due to a change in relative prices, leading consumers to substitute one good for another more or less expensive good.