The Principle of DXA Scanning Relies Upon the

question 21

Multiple Choice

The principle of DXA scanning relies upon the

• A)attenuation of two discrete photon energy levels through soft tissue and bone.
• B)measurement of scatter energy from the patient at two energy levels.
• C)measurement of scatter photon energy subtracted from primary photon energy.
• D)ratio of Bremsstrahlung and characteristic radiation production.

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Definitions:

Variable Costing

A method of inventory costing that includes only variable manufacturing costs - direct materials, direct labor, and variable manufacturing overhead - in the cost of a product.

Net Operating Income

Income from a company's operations, calculated by subtracting operating expenses from operating revenue, excluding income and expenses from non-operating activities.

Gross Margin

The difference between sales revenue and the cost of goods sold, expressed as a percentage of sales revenue, indicating the efficiency of a company in managing its production and labor costs.

Net Operating Income

A company's revenue minus its operating expenses, excluding taxes and interest, providing a measure of profitability from its core business activities.