# RADR 2205 Unit 6 exam

For each description or characteristic below, indicate whether it is associated with "stochastic" or "deterministic" effects.

occur randomly

referred to as "probabilistic"

as exposure increases, the risk of biologic effect increases

late effects

early effects

as dose increases, effects are more severe
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For each description or characteristic below, indicate whether it is associated with "stochastic" or "deterministic" effects.

occur randomly

referred to as "probabilistic"

as exposure increases, the risk of biologic effect increases

late effects

early effects

as dose increases, effects are more severe
Gonadal shields are intended to provide protection from primary radiation exposure.

For female patients, a flat gonadal contact shield should be placed so that it is centered such that the edges are approximately 2.5 cm (1 inch) medial to each ASIS.

For male patients, the symphysis pubis should be used as a guide to ensure placement of the flat gonadal contact shield over the testes.

Use and placement of such shielding can reduce male gonadal dose by 90-95%.
Match the measurable image characteristic with the appropriate description.

a measure of how accurate the information contained in the image is in comparison to the actual structure

directly impacts the contrast resolution which is essential to a quality diagnostic image

measures how efficiently the x rays received by a detector can be converted into a useful image