Deck 19: Screen-Film Radiographic Artifacts

Question 1

Thin lines on the leading or trailing edge of a film are _____.

A) Pi lines
B) dichroic stains
C) guide-shoe marks
D) emulsion build-up

Answer 1

guide-shoe marks

Question 2

Generally,most repeat exams are caused by _____ artifacts.

A) processing
B) handling
C) exposure
D) storage

Answer 2

exposure

Question 3

A cassette that is improperly positioned can cause a _____ artifact.

A) blur
B) grid cut-off
C) fog
D) double exposure

Answer 3

grid cut-off

Question 4

Kink marks are caused by _____.

A) fingernails
B) light leaks
C) misaligned rollers
D) bending film

Question 5

A _____ is an example of an exposure artifact.

A) foreign object
B) Pi line
C) pressure mark
D) dichroic stain

Question 6

What can cause image blur on the finished radiograph?

A) patient motion
B) chemical imbalance
C) high humidity
D) any of the above

Question 7

Lines that occur C.14 inches apart on the finished radiograph are caused by _____.

A) misalignment of guide-shoes
B) chemical build-up on rollers
C) poor film-screen contact
D) grid cut-off during exposure

Question 8

A streak of high optical density on the finished radiograph can be caused by _____.

A) film boxes stacked too high in storage
B) light leaks in the cassette or darkroom
C) inadequate washing in the processor
D) high humidity in the darkroom

Question 9

Misalignment of the processor turnaround assembly can cause _____.

A) tree static
B) grid cut-off
C) Pi lines
D) guide-shoe marks

Question 10

A static mark artifact is created during _____ of the film.

A) exposure
B) development
C) handling
D) all of the above

Question 11

A screen film radiographic artifact can be _____.

A) an object that is not part of the radiographed anatomy
B) patient motion
C) an improper grid or warped cassette
D) any of the above

Question 12

Low humidity in the darkroom can cause _____.

A) tree static
B) brown stains
C) pressure marks
D) film fog

Question 13

What sort of screen film radiographic artifact is a guide-shoe mark?

A) exposure artifact
B) processing artifact
C) handling artifact
D) storage artifact

Question 14

A bi-color chemical stain on a radiograph is called _____.

A) a curtain effect
B) a dichroic stain
C) hypo retention
D) both A and B

Question 15

A greasy appearance of a film is usually caused by _____.

A) inadequate washing
B) excess hardener chemicals
C) improper developer heat
D) inadequate processing chemistry