Question 1

Departmental standards, such as the SID or whether an examination is done tabletop or Bucky, should be determined:

Accepted Answer

A)  Prior to the development of technique charts 
B)  After the development of technique charts 
C)  At the same time as the development of technique charts 
D)  Whenever the department can come to an agreement 
A)  Prior to the development of technique charts 
B)  After the development of technique charts 
C)  At the same time as the development of technique charts 
D)  Whenever the department can come to an agreement A

Question 2

When doing a CR study using AEC, what will happen to the brightness in the area of interest when changing from the -1 to +1 density setting?

Accepted Answer

A)  Brightness will increase. 
B)  Brightness will decrease. 
C)  Brightness will not change. 
A)  Brightness will increase. 
B)  Brightness will decrease. 
C)  Brightness will not change. C

Question 3

Where does a radiographer find the established guidelines for selecting exposure factors for a radiographic examination?

Accepted Answer

A)  Technique chart 
B)  Generator control panel 
C)  Examination requisition 
D)  B or C 
A)  Technique chart 
B)  Generator control panel 
C)  Examination requisition 
D)  B or C A

Question 4

When the radiographer is considering whether to repeat an image using AEC, it is important to determine the reason the first radiograph failed.

Accepted Answer

A) True 
 B)False

Question 5

A technique chart should be established for:

Accepted Answer

A)  Each radiographer 
B)  Each radiographic tube 
C)  Each radiologist 
D)  A and C 
A)  Each radiographer 
B)  Each radiographic tube 
C)  Each radiologist 
D)  A and C

Question 6

What would the result be if a film-screen radiographic examination required an exposure time shorter than the minimum response time of the AEC sensors?

Accepted Answer

A)  Image density would be optimal. 
B)  Image density would be excessive. 
C)  Response time has nothing to do with AEC. 
D)  Image contrast would be high. 
A)  Image density would be optimal. 
B)  Image density would be excessive. 
C)  Response time has nothing to do with AEC. 
D)  Image contrast would be high.

Question 7

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

Accepted Answer

A)  2 kVp 
B)  4 kVp 
C)  6 kVp 
D)  10 kVp 
A)  2 kVp 
B)  4 kVp 
C)  6 kVp 
D)  10 kVp

Question 8

Which of the following is not part of a standardized technique chart?

Accepted Answer

A)  SID 
B)  OID 
C)  mA 
D)  kVp 
A)  SID 
B)  OID 
C)  mA 
D)  kVp

Question 9

Using the concept of comparative anatomy, if a child's elbow measures the same as an adult wrist and all other procedural variables are the same (i.e., SID, image receptor type, etc.), the child's elbow will require _____ in comparison to the adult wrist.

Accepted Answer

A)  Less mAs 
B)  More mAs 
C)  The same mAs 
D)  Higher kVp 
A)  Less mAs 
B)  More mAs 
C)  The same mAs 
D)  Higher kVp

Question 10

Generally speaking, patient dose will be decreased with the:

Accepted Answer

A)  Variable kVp-fixed mAs technique chart design 
B)  Variable kVp-variable mAs technique chart design 
C)  Fixed kVp-variable mAs technique chart design 
D)  Fixed kVp-fixed mAs technique chart design 
A)  Variable kVp-fixed mAs technique chart design 
B)  Variable kVp-variable mAs technique chart design 
C)  Fixed kVp-variable mAs technique chart design 
D)  Fixed kVp-fixed mAs technique chart design

Question 11

When using a fixed kVp-variable mAs technique chart, if part thickness increases by 5 cm, what needs to happen to the mAs?

Accepted Answer

A)  It should be halved. 
B)  It should be doubled. 
C)  It should be quartered. 
D)  It should be tripled. 
A)  It should be halved. 
B)  It should be doubled. 
C)  It should be quartered. 
D)  It should be tripled.

Question 12

Routinely using plus or minus density settings means that everything is working well and you are intelligently using the AEC system to produce quality images.

Accepted Answer

A) True 
 B)False

Question 13

What does APR stand for?

Accepted Answer

A)  All programming radiology 
B)  Anatomically programmed radiography 
C)  Accurately positioned radiographs 
D)  None of the above 
A)  All programming radiology 
B)  Anatomically programmed radiography 
C)  Accurately positioned radiographs 
D)  None of the above

Question 14

Which automatic exposure device works by using a gas-filled chamber?

Accepted Answer

A)  Phototimer 
B)  Diode sensor 
C)  Ionization chamber 
D)  Bucky proliferator 
A)  Phototimer 
B)  Diode sensor 
C)  Ionization chamber 
D)  Bucky proliferator

Question 15

When using AEC with film-screen, what should the radiographer adjust to manipulate the overall density of the image?

Accepted Answer

A)  kVp 
B)  Backup time 
C)  Focal spot size 
D)  Density control 
A)  kVp 
B)  Backup time 
C)  Focal spot size 
D)  Density control

Question 16

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

Accepted Answer

A)  A variable kVp technique chart 
B)  A fixed kVp technique chart 
C)  A fixed mAs technique chart 
D)  A and C 
A)  A variable kVp technique chart 
B)  A fixed kVp technique chart 
C)  A fixed mAs technique chart 
D)  A and C

Question 17

What is the purpose of setting a backup time/mAs?

Accepted Answer

A)  To prevent excessive exposure of the patient 
B)  To make certain the contrast is acceptable if the chosen kVp is too low 
C)  To make certain the density is acceptable if the patient moves 
D)  To prevent the selection of the wrong detector 
A)  To prevent excessive exposure of the patient 
B)  To make certain the contrast is acceptable if the chosen kVp is too low 
C)  To make certain the density is acceptable if the patient moves 
D)  To prevent the selection of the wrong detector

Question 18

Which exposure variable is controlled by the automatic exposure control device?

Accepted Answer

A)  kVp 
B)  Focal spot size 
C)  Seconds 
D)  mA 
A)  kVp 
B)  Focal spot size 
C)  Seconds 
D)  mA

Question 19

Exposure technique charts are possibly more important when using digital image receptors because:

Accepted Answer

A)  The equipment is more expensive. 
B)  It's obvious when the wrong exposure factors have been used with digital IRs. 
C)  Visual cues for underexposure or overexposure are missing. 
D)  All of the above 
A)  The equipment is more expensive. 
B)  It's obvious when the wrong exposure factors have been used with digital IRs. 
C)  Visual cues for underexposure or overexposure are missing. 
D)  All of the above

Question 20

In order to become familiar with manual technical factors (i.e., setting mAs and kVp and not using AEC), it is very helpful to pay attention to the:

Accepted Answer

A)  Exposure time 
B)  Heat units 
C)  Density control 
D)  mAs readout 
A)  Exposure time 
B)  Heat units 
C)  Density control 
D)  mAs readout

Departmental standards, such as the SID or whether an examination is done tabletop or Bucky, should be determined:

When doing a CR study using AEC, what will happen to the brightness in the area of interest when changing from the -1 to +1 density setting?

Where does a radiographer find the established guidelines for selecting exposure factors for a radiographic examination?

When the radiographer is considering whether to repeat an image using AEC, it is important to determine the reason the first radiograph failed.

A technique chart should be established for:

What would the result be if a film-screen radiographic examination required an exposure time shorter than the minimum response time of the AEC sensors?

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

Which of the following is not part of a standardized technique chart?

Using the concept of comparative anatomy, if a child's elbow measures the same as an adult wrist and all other procedural variables are the same (i.e., SID, image receptor type, etc.), the child's elbow will require _____ in comparison to the adult wrist.

Generally speaking, patient dose will be decreased with the:

When using a fixed kVp-variable mAs technique chart, if part thickness increases by 5 cm, what needs to happen to the mAs?

Routinely using plus or minus density settings means that everything is working well and you are intelligently using the AEC system to produce quality images.

What does APR stand for?

Which automatic exposure device works by using a gas-filled chamber?

When using AEC with film-screen, what should the radiographer adjust to manipulate the overall density of the image?

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

What is the purpose of setting a backup time/mAs?

Which exposure variable is controlled by the automatic exposure control device?

Exposure technique charts are possibly more important when using digital image receptors because:

In order to become familiar with manual technical factors (i.e., setting mAs and kVp and not using AEC), it is very helpful to pay attention to the:

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

Exam 8: Exposure Technique Selection

Departmental standards, such as the SID or whether an examination is done tabletop or Bucky, should be determined:

When doing a CR study using AEC, what will happen to the brightness in the area of interest when changing from the -1 to +1 density setting?

Where does a radiographer find the established guidelines for selecting exposure factors for a radiographic examination?

When the radiographer is considering whether to repeat an image using AEC, it is important to determine the reason the first radiograph failed.

A technique chart should be established for:

What would the result be if a film-screen radiographic examination required an exposure time shorter than the minimum response time of the AEC sensors?

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

Which of the following is not part of a standardized technique chart?

Using the concept of comparative anatomy, if a child's elbow measures the same as an adult wrist and all other procedural variables are the same (i.e., SID, image receptor type, etc.), the child's elbow will require _____ in comparison to the adult wrist.

Generally speaking, patient dose will be decreased with the:

When using a fixed kVp-variable mAs technique chart, if part thickness increases by 5 cm, what needs to happen to the mAs?

Routinely using plus or minus density settings means that everything is working well and you are intelligently using the AEC system to produce quality images.

What does APR stand for?

Which automatic exposure device works by using a gas-filled chamber?

When using AEC with film-screen, what should the radiographer adjust to manipulate the overall density of the image?

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

What is the purpose of setting a backup time/mAs?

Which exposure variable is controlled by the automatic exposure control device?

Exposure technique charts are possibly more important when using digital image receptors because:

In order to become familiar with manual technical factors (i.e., setting mAs and kVp and not using AEC), it is very helpful to pay attention to the:

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters