230final

An artifact can be _____.
A. an object that is not part of the radiographed anatomy
B. an improper grid or warped cassette
C. patient motion
D. all answers

A ____ is an exaple of an exposure artifact.
A. dichronic stain
B. Pi line
C. pressure mark
D. foreign object

A static mark artifact is created during ____ of the film.
A. development
B. all answers
C. handling
D. exposure

What sort of artifact is a guide-shoe mark?
A. exposure artifact
B. handling artifact
C. storage artifact
D. processing artifact

Generally, most repeat exams are caused by ____ artifacts.
A. handling
B. exposure
C. processing
D. storage

A cassette that is improperly positioned can cause a _____ artifact.
A. blur
B. fog
C. double exposure
D. grid cut-off

Misalignment of the processor turnaround assembly can cause ____.
A. guide-shoe marks
B. Pi lines
C. tree static
D. grid cut-off

A greasy appearance of a film is usually caused by _____.
A. improper develpoer heat
B. inadequate washing
C. excess hardner chemicals
D. inadequate processing chemistry

Lines that occur 3.14 inches apart on the finished radiograph are caused by ___.
A. grid cut-off during exposure
B. poor film-screen contact
C. misalignment of guide-shoes
D. chemical build-up on rollers

Thin lines on the leading and trailing edge of a silm are ____.
A. emulsion build-up
B. Pi lines
C. guide-shoe marks
D. dichronic stains

A bi-color chemical stain on a radiograph is called ______.
A. a curtain effect
B. a dichronic stain
C. a curtain effect and dichronic stain
D. hypo retention

Low humidity in the darkroom can cause ____.
A. brown stains
B. pressure marks
C. tree static
D. film fog

A streak of high optical density on the finished radiograph can be caused by _____.
A. light leaks in the cassette or darkroom
B. high humidity in the darkroom
C. inadequate washing in the processor
D. film boxes stacked too high in storage

What can cause image blur on the finished radiograph?
A. patient motion
B. high humidity
C. chemical imbalance
D. all answers

Kink marks are caused by ______.
A. light leaks
B. bending film
C. misaligned rollers
D. fingernails

A quality assurance program monitors _____.

A quality control program is for?
A. CT scanners
B. film processors
C. x-ray tubes
D. all answers

Most quality control testing on radiographic equipment is done ______.

The measured kVp should be within _____ of the kVp indicated on the console.

Comparing the mR output at 50mA @ 0.2 sec, 100mA @ 0.1 sec, and 200mA @ 0.05 sec is part of a test for _____.
A. reproducibility
B. reciprocity
C. uniformity
D. linearity

Unlimited ESE is permitted by federal law during _____ procedures,
A. interventional
B. cineradiography
C. C-arm
D. routine

Quality control testing for computerized tomography must be performed on a ____ basis.
A. all answers
B. annual
C. monthy
D. daily/weekly

______ is used to test noise and uniformity on CT imaging systems.
A. a step wedge
B. a wire
C. AAPM five-pin insert
D. water bath

The standard for DICOM was developed by a committee of the?

The consistant appearance of DICOM images on any compatable digital display device is achieved through ______.
A. SMPTE pattern
B. perceptual linearization
C. specular reflection
D. digital driving levels

The quality control standard for flat panel displays was released by ______ in 1998.

The task group 18 is a procedure manual for?

A photometer is a ______.
A. luminescene meter
B. dosimeter
C. illuminance meter
D. TG-18 device

A telescope photometer is used at what distance?

Digital disply reflections and ambient light conditions are assessed with an?

The TG18-LPV/LPH test is used to evaluate _______.

Specular reflextion can be tested wit the
1. TG 18AD pattern
2. Ambient light turned off
3. Ambient light turned on

A. 1 and 2
B. 1 only
C. 1, 2 and 3
D. 1 and 3

T/F- Specular reflection can be assessed by only turning off the monitor in ambient light.
True False

Spatial resolution of the digital display monitor is done with the ____ test pattern.
A. TG18-LN
B. TG18-AD
C. TG18-AFC
D. TG18-CX

The qualitative evaluation of luminance response is measured with the ____ test tool.
A. TG18-CT
B. TG18-AD
C. TG18-LPV/LPH
D. TG18-LN

Display noise is measured using the _____ test pattern.

Daily evaluation of the monitors should be done with the ______ test tool (pattern).

The half value layer (HVL) is a measurement of the beams?

Crossover is a radiographic problem because it decreases _____.
A. recorded detail
B. density
C. film speed
D. contrast

The Roentgen is a measure of the beams
A. intensity
B. energy
C. OID
D. quality

A cresent moon shaped dark artifact is caused by?

The timer must be accurate to within ____?

mAs linearity should be within ____?

Hypo rention means that ____ was left in the emulsion after processing.

T/F- The reflective layer of an intensifying screen deflects light aways from the film.
True False