Clinical Assessment & Patient Care Flashcards
7 cards from real Radiation Health and Safety Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Clinical Assessment & Patient Care flashcards as text
A radiograph shows a clear, unexposed curved edge on one side. What error is this?
Answer: Cone cut
Cone cuts occur when the PID is not aligned with the receptor, leaving part of the image unexposed.
An image shows teeth that appear too long. What is the most likely cause?
Answer: Insufficient vertical angulation
Insufficient vertical angulation produces elongation.
Foreshortened teeth result from which error?
Answer: Excessive vertical angulation
Excessive vertical angulation shortens the apparent length of teeth.
What causes overlapping of proximal contacts on a bitewing?
Answer: Incorrect horizontal angulation
The beam must pass through the interproximal spaces, so wrong horizontal angulation causes overlap.
A herringbone or tire-track pattern on a film indicates what?
Answer: The film was placed backward in the mouth
The lead foil pattern appears when the tube side of the film is placed away from the tube.
On a periapical image, how much of the periapical area should be visible?
Answer: At least 2-3 mm beyond the apices
Adequate apical coverage includes surrounding bone beyond the root tips for diagnosis.
A bitewing shows a dark image overall. Which is a probable cause?
Answer: Overexposure
Excessive exposure or development produces an overly dark, low-density image.
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