Deck 20: Screen-Film Radiographic Quality Control

Question 1

A QC program should include _____,routine performance monitoring,and maintenance.

A) acceptance testing
B) outcome analysis
C) calibration
D) personnel monitoring

Answer 1

acceptance testing

Question 2

A quality assurance program monitors _____.

A) films
B) imaging equipment
C) people
D) processors

Answer 2

people

Question 3

The minimum HVL for an x-ray machine operated at 70 kVp is?

A) 1.0 mm Al
B) 5.0 mm Al
C) 2.0 mm Al
D) 20 mm Al

Answer 3

2.0 mm Al

Question 4

Focal spot size is measured with _____.

A) a pinhole camera
B) a star pattern
C) a slit camera
D) all of the above

Question 5

Filtration is measured with _____ measurements.

A) caliper
B) photometer
C) slit camera
D) half-value layer

Question 6

Quality control testing procedures should be performed on _____ basis.

A) a daily and weekly
B) a monthly
C) an annual
D) all of the above

Question 7

The determination of how consistently radiologists' image interpretations match patients' ultimate diagnoses is called _____.

A) exposure linearity
B) outcome analysis
C) reproducibility
D) uniformity

Question 8

The first step of the QA recommended by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO)is to _____.

A) collect and organize data
B) take action to improve care
C) assign responsibility
D) assess and document actions

Question 9

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

A) 5
B) 10
C) 15
D) 20

Question 10

Medical facilities have quality control programs in place in order to _____.

A) have JAHCO approval and accreditation
B) ensure quality patient care
C) receive payment from insurance carriers
D) do all of the above

Question 11

Comparing the mR output at 50 mA @ 0.2 sec,100 mA @ 0.1 sec,and 200 mA @ 0.05 sec is part of a test for _____.

A) reciprocity
B) reproducibility
C) linearity
D) uniformity

Question 12

What is the testing device used to measure cassette screen-film contact?

A) dosimeter
B) wire-mesh
C) sensitometer
D) star pattern

Question 13

The collimator must be accurately aligned to within ±_____% of the SID.

A) 2
B) 5
C) 10
D) 12

Question 14

Acceptance testing should never be done by a _____.

A) medical physicist
B) manufacturer's representative
C) QC technologist
D) radiologic engineer

Question 15

The x-ray field must center accurately to within ____% of SID.

A) 2
B) 3
C) 0.5
D) 1

Question 16

It is acceptable to perform a(n)_____ test instead of measuring the focal spot size.

A) line pair
B) exposure linearity
C) half-value layer
D) wire mesh pattern

Question 17

A quality control program is for _____.

A) film processors
B) CT scanners
C) x-ray tubes
D) all of the above

Question 18

Most quality control testing on radiographic equipment is done _____.

A) annually
B) semiannually
C) monthly
D) weekly

Question 19

When a light in a viewbox is out,_____.

A) that light bulb must be replaced
B) all bulbs in the viewbox must be replaced
C) all the bulbs must be matched to adjacent viewboxes
D) all of the above must be done

Question 20

All general purpose radiographic units must have a minimum of _____ mm Al filtration.

A) 1.5
B) 2.0
C) 2.5
D) 3.0

Question 21

A positive beam limitation (PBL)device is involved in?

A) Collimation
B) Exposure control
C) Dose reduction
D) Protocol monitoring

Question 22

Processors should be monitored every day for _____.

A) sensitometric measurements
B) water and chemical temperatures
C) replenishment tank levels
D) all of the above

Question 23

Processor crossover racks should be cleaned on a _____ basis.

A) daily
B) weekly
C) biweekly
D) monthly

Question 24

Following a good processor QC program reduces the need for _____ maintenance.

A) daily
B) unscheduled
C) scheduled
D) preventive

Question 25

Probably the most important patient protection characteristic of a radiographic imaging system is _____.

A) Filtration
B) Focal spot size
C) Accurate collimation
D) High contrast resolution