Deck 20: Screen-Film Radiographic Quality Control

Question 1

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

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

Answer 1

Do all of the above

Question 2

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

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

Answer 2

outcome analysis

Question 3

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

Answer 3

2.5

Question 4

The first step of the QA recommended by The Joint Commission (TJC) is to __________________.

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

Question 5

A quality control program is for ____________________.

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

Question 6

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

Question 7

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

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

Question 8

A quality assurance program monitors __________.

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

Question 9

Acceptance testing should never be done by a ______________________.

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

Question 10

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 11

Most quality control testing on radiographic equipment is done ______________.

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

Question 12

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 13

Filtration is measured with _____________ measurements.

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

Question 14

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

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

Question 15

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 16

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

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

Question 17

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

A) Dosimeter
B) Wire-mesh
C) Sensitometer
D) Star pattern

Question 18

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

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

Question 19

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

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

Question 20

Focal spot size is measured with ________________.

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

Question 21

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

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

Question 22

A positive beam limitation (PBL) device is involved in __________________.

A) collimation
B) exposure control
C) dose reduction
D) protocol monitoring

Question 23

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