The Primary Disadvantage of the Positron Emission Tomography (PET) Scan

question 23

Multiple Choice

The primary disadvantage of the positron emission tomography (PET) scan technique relates to

• A) the operating cost of the scanner.
• B) the long-half life of the radioactive 2-deoxyglucose molecule.
• C) the inherent danger posed by the technique.
• D) an inability of the technique to assess changes in metabolic activity.
• E) the fact that the technique can measure neuron volume, but not activity.

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Definitions:

Demographic Transition View

A model explaining how changes in birth and death rates can affect the age and growth dynamics of a population over time.

Opportunity Costs

The value of the next best alternative that is foregone when a decision is made.

Underemployment

A situation in which workers are employed below their skill level or work fewer hours than they would prefer.