Ch. 31 Quality Management (Exp II)

Question 1

Quality assurance includes each of the following EXCEPT:

a. Equipment maintenance
b. Filing systems
c. Diagnosis
d. Scheduling

Answer 1

c. Diagnosis

Question 2

The largest hospital accreditation agency is the:

Answer 2

Joint Commision

Question 3

The Joint Commission approval is linked to _____ reimbursement.

Answer 3

Federal, state, and insurance company

Question 4

Input for the purchase of new radiographic equipment should include the:

Answer 4

Radiologists, radiographers, and administrators

Question 5

Installation and acceptance testing of equipment is the responsibility of the:

Answer 5

Radiology equipment vendor

Question 6

Routine quality management procedures should be performed by the:

Answer 6

Qualified radiographer

Question 7

Which monitoring tests should be done on a daily basis?

Answer 7

Processor sensitometry

Question 8

Each of the following monitoring tests should be done on a semiannual basis EXCEPT:

a. Processor sensitometry
b. Focal spot size estimation
c. Collimator accuracy
d. Kilovoltage accuracy

Answer 8

a. Processor sensitometry

Question 9

Test tools for focal spot size estimation include each of the following EXCEPT:

a. Pinhole camera
b. Star test pattern
c. Line pair resolution tool
d. Motorized synchronous top

Answer 9

d. Motorized synchronous top

Question 10

Focal spots measuring 0.3 mm or less should be measured with a:

Answer 10

Star test pattern

Question 11

Focal spots measuring 0.3 mm or more should be measured with a:

Answer 11

Pinhole camera

Question 12

Which type of equipment is used to measure half-value layers?

a. Sensitometer
b. Aluminum filters
c. Dosimetry equipment
d. More than one of the above

Answer 12

d. More than one of the above

Question 13

When testing collimator accuracy, an SID error of ____ is allowed.

Answer 13

2%

Question 14

The centering mark should be within ____ of the light field central ray.

Answer 14

1%

Question 15

Distance indicators are checked with a:

Answer 15

Tape measure

Question 16

A generator must be recalibrated when the kVp drifts beyond ____ kVp of the labeled setting.

Answer 16

5

Question 17

The accuracy of single-phase generator time settings can be measured with a:

Answer 17

Spinning top test

Question 18

The accuracy of three-phase generator time settings can be measured with a:

Answer 18

Motorized synchronous spinning top test

Question 19

Exposure time settings should be maintained within ____ of the labeled setting.

Answer 19

+/- 5%

Question 20

The source-to-skin distance limit for a stationary fluoroscopic unit is ____ inches.

Answer 20

15

Question 21

Tomographic system uniformity and completeness of motion are tested with a:

Answer 21

Lead mask with a pinhole

Question 22

Tomographic systems should be tested for each of the following EXCEPT:

a. Automatic brightness control
b. Completeness of motion
c. Section depth indicator accuracy
d. Section thickness accuracy

Answer 22

a. Automatic brightness control

Question 23

Most AECs utilize ____ ion chambers in various combinations.

Answer 23

Three

Question 24

Computerized storage and transmission systems for digitized images of all types are called:

Answer 24

PACS

Question 25

The accuracy of mA stations on a radiographic generator:

a. Should be measured after the timer and kVp accuracy have been confirmed
b. Tend to drift as the tube ages
c. Are measured using mR/mAs calculations across all mA stations
d. All of the above

Answer 25

d. All of the above

Question 26

You have just taken a CR radiograph of a patient’s knee and the S# is 225. Unfortunately, the image has some degree of motion distortion and needs to be repeated using the same exposure settings. In repeating the image, the new image shows no motion but the S# is now 400. No changes were made to collimation, patient position, exposure techniques, etc. Based upon this new S# value,

Answer 26

Exposure reproducibility is suspect.

Question 27

A qualified x-ray service engineer should e used to evaluate and correct the following radiographic/fluoroscopic imaging features:

1. Film processor sensitometry
2. Automatic brightness control
3. Source-to-skin distance limits
4. Fluoroscopic contrast
5. Image display monitor brightness/contrast
6. AEC reproducibility

Answer 27

2. Automatic brightness control
3. Fluoroscopic contrast
4. Image display monitor brightness/contrast
5. AEC reproducibility

Question 28

Digital detectors with a higher DQE will:

Answer 28

Produce better images of small objects with low subject contrast

Question 29

A common device to measure display monitor quality and characteristics is a:

Answer 29

SMPTE pattern

Question 30

An effective method to assess department image quality is to perform a repeat image analysis. This procedure will demonstrate which of the following department traits?

1. Percent of repeat images per room
2. Percent of repeat mages per radiographer
3. Automatic brightness control instability
4. Radiologist interpretation accuracy
5. Radiographer positioning accuracy
6. Patient exam waiting times
7. Equipment malfunctions
8. Radiographer exposure technique accuracy
9. Transmission times to PACS

Answer 30

1. Percent of repeat images per room
2. Percent of repeat mages per radiographer
3. Radiographer positioning accuracy
4. Equipment malfunctions
5. Radiographer exposure technique accuracy