Three Main Factors That Influence the Amount of Penumbra on a Radiograph

question 42

Multiple Choice

Three main factors that influence the amount of penumbra on a radiograph are:

• A) SID, OID, film speed
• B) size of the focal spot, patient motion, SID
• C) SID, OID, focal spot
• D) grid ratio, mA, SID

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Definitions:

Induction

A reasoning process that involves making generalizations based on specific observations or instances.

Deduction

A logical process in which a conclusion follows necessarily from the stated premises, implying the truth of the conclusion if the premises are true.

Reasoning

The process of thinking about something in a logical way in order to form a conclusion or judgment.

Judgment

The process of extrapolating from evidence to draw conclusions.