Image Production & Evaluation - Radiology Exam
Review [ARRT] - [Appleton & Lange Review] with all
Correct & 100% Verified Answers
Which of the following influences geometric unsharpness?
1. OID
2. Focal-object distance
3. SID
(A) 1 only
(B) 1 and 2 only
(C) 1 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-OID
Focal-Object Distance
SID
Which of the following groups of exposure factors would be most appropriate to control involuntary
motion?
(A) 400 mA, 0.03 s
(B) 200 mA, 0.06 s
(C) 600 mA, 0.02 s
(D) 100 mA, 0.12 s ✔Correct Answer-600 mA, 0.02 s
[t is essential to use the shortest possible exposure time in order to have a "stop action" effect.]
When green-sensitive rare earth screens are properly matched with the correct film, what type of
safelight should be used in the darkroom?
(A) Wratten 6B
(B) GBX or GS1
(C) Amber
(D) None ✔Correct Answer-GBX or GS1
[The GBX or GS1 is a red filter that is safe with green-sensitive film emulsion.]
Which of the following technical changes would best serve to remedy the effect of widely different
tissue densities?
(A) Use of high-speed screens
(B) Use of a high-ratio grid
(C) High-kVp exposure factors
(D) High-mAs exposure factors ✔Correct Answer-High-kVp Exposure Factors
Which of the following are methods of limiting the production of scattered radiation?
1. Using moderate-ratio grids
2. Using the prone position for abdominal exams
3. Restricting the field size to the smallest practical size
(A) 1 and 2 only
(B) 1 and 3 only
,(C) 2 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Using the Prone Position for Abdominal Exams.
Restricting The Field Size to the Smallest Practical Size.
The purpose of the automatic processor's circulation system is to
(A) monitor and adjust temperature.
(B) agitate, mix, and filter solutions.
(C) move the film and change its direction.
(D) monitor the solution and replace it as necessary. ✔Correct Answer-Agitate, Mix, and Filter
Solutions.
A quality assurance program serves to
1. keep patient dose to a minimum.
2. keep radiographic quality consistent.
3. ensure equipment efficiency.
(A) 1 only
(B) 1 and 2 only
(C) 1 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Keep Patient Dose to a Minimum.
Keep Radiographic Quality Consistent.
Ensure Equipment Efficiency.
Exposure factors of 90 kVp and 4 mAs are used for a particular nongrid exposure. What should be the
new mAs if an 8:1 grid is added?
(A) 8 mAs
(B) 12 mAs
(C) 16 mAs
(D) 20 mAs
(Saia, p 328) ✔Correct Answer-16 mAs
[to change from nongrid to an 8:1 grid, multiply the original mAs by a factor of 4. A new mAs of 16 is
required]
Which of the following is (are) classified as rare earth phosphors?
1. Lanthanum Oxybromide
2. Gadolinium Oxysulfide
3. Cesium Iodide
(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Lanthanum Oxybromide
Gadolinium Oxysulfide
Which of the following pathologic conditions would require an increase in exposure factors?
(A) Pneumoperitoneum
(B) Obstructed bowel
(C) Renal colic
, (D) Ascites ✔Correct Answer-Ascites
Which of the following is most likely to produce a radiograph with a long scale of contrast?
(A) Increased photon energy
(B) Increased screen speed
(C) Increased mAs
(D) Increased SID ✔Correct Answer-Increased Photon Energy
A 15 percent increase in kVp accompanied by a 50 percent decrease in mAs will result in a(n)
(A) shorter scale of contrast.
(B) increase in exposure latitude.
(C) increase in radiographic density.
(D) decrease in recorded detail. ✔Correct Answer-Increase in Exposure Latitude.
Which of the following examinations might require the use of 120 kVp?
1. AP abdomen
2. Chest radiograph
3. Barium-filled stomach
(A) 1 only
(B) 2 only
(C) 1 and 2 only
(D) 2 and 3 only ✔Correct Answer-Chest Radiography
Barium-Filled Stomach
A film emulsion having wide latitude is likely to exhibit
(A) high density.
(B) low density.
(C) high contrast.
(D) low contrast. ✔Correct Answer-Low Contrast.
How is the mAs adjusted in an AEC system as the film / screen combination is decreased?
(A) The mAs increases as film / screen speed decreases.
(B) Both the mAs and the kVp increase as film / screen speed decreases.
(C) The mAs decreases as film / screen speed decreases.
(D) The mAs remains unchanged as film / screen speed decreases.
(Saia, p 305) ✔Correct Answer-The mAs remains unchanged as film / screen speed decreases.
A particular radiograph was produced using 6 mAs and 110 kVp with an 8:1 ratio grid. The radiograph
is to be repeated using a 16:1 ratio grid. What should be the new mAs?
(A) 3 mAs
(B) 6 mAs
(C) 9 mAs
(D) 12 mAs
(Saia, p 328) ✔Correct Answer-9 mAs
--To adjust exposure factors, you simply compare the old with the new:
6 (old mAs) 4 (old grid factor)
___________=______________
x (new mAs) 6 (new grid factor)
Review [ARRT] - [Appleton & Lange Review] with all
Correct & 100% Verified Answers
Which of the following influences geometric unsharpness?
1. OID
2. Focal-object distance
3. SID
(A) 1 only
(B) 1 and 2 only
(C) 1 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-OID
Focal-Object Distance
SID
Which of the following groups of exposure factors would be most appropriate to control involuntary
motion?
(A) 400 mA, 0.03 s
(B) 200 mA, 0.06 s
(C) 600 mA, 0.02 s
(D) 100 mA, 0.12 s ✔Correct Answer-600 mA, 0.02 s
[t is essential to use the shortest possible exposure time in order to have a "stop action" effect.]
When green-sensitive rare earth screens are properly matched with the correct film, what type of
safelight should be used in the darkroom?
(A) Wratten 6B
(B) GBX or GS1
(C) Amber
(D) None ✔Correct Answer-GBX or GS1
[The GBX or GS1 is a red filter that is safe with green-sensitive film emulsion.]
Which of the following technical changes would best serve to remedy the effect of widely different
tissue densities?
(A) Use of high-speed screens
(B) Use of a high-ratio grid
(C) High-kVp exposure factors
(D) High-mAs exposure factors ✔Correct Answer-High-kVp Exposure Factors
Which of the following are methods of limiting the production of scattered radiation?
1. Using moderate-ratio grids
2. Using the prone position for abdominal exams
3. Restricting the field size to the smallest practical size
(A) 1 and 2 only
(B) 1 and 3 only
,(C) 2 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Using the Prone Position for Abdominal Exams.
Restricting The Field Size to the Smallest Practical Size.
The purpose of the automatic processor's circulation system is to
(A) monitor and adjust temperature.
(B) agitate, mix, and filter solutions.
(C) move the film and change its direction.
(D) monitor the solution and replace it as necessary. ✔Correct Answer-Agitate, Mix, and Filter
Solutions.
A quality assurance program serves to
1. keep patient dose to a minimum.
2. keep radiographic quality consistent.
3. ensure equipment efficiency.
(A) 1 only
(B) 1 and 2 only
(C) 1 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Keep Patient Dose to a Minimum.
Keep Radiographic Quality Consistent.
Ensure Equipment Efficiency.
Exposure factors of 90 kVp and 4 mAs are used for a particular nongrid exposure. What should be the
new mAs if an 8:1 grid is added?
(A) 8 mAs
(B) 12 mAs
(C) 16 mAs
(D) 20 mAs
(Saia, p 328) ✔Correct Answer-16 mAs
[to change from nongrid to an 8:1 grid, multiply the original mAs by a factor of 4. A new mAs of 16 is
required]
Which of the following is (are) classified as rare earth phosphors?
1. Lanthanum Oxybromide
2. Gadolinium Oxysulfide
3. Cesium Iodide
(A) 1 only
(B) 1 and 2 only
(C) 2 and 3 only
(D) 1, 2, and 3 ✔Correct Answer-Lanthanum Oxybromide
Gadolinium Oxysulfide
Which of the following pathologic conditions would require an increase in exposure factors?
(A) Pneumoperitoneum
(B) Obstructed bowel
(C) Renal colic
, (D) Ascites ✔Correct Answer-Ascites
Which of the following is most likely to produce a radiograph with a long scale of contrast?
(A) Increased photon energy
(B) Increased screen speed
(C) Increased mAs
(D) Increased SID ✔Correct Answer-Increased Photon Energy
A 15 percent increase in kVp accompanied by a 50 percent decrease in mAs will result in a(n)
(A) shorter scale of contrast.
(B) increase in exposure latitude.
(C) increase in radiographic density.
(D) decrease in recorded detail. ✔Correct Answer-Increase in Exposure Latitude.
Which of the following examinations might require the use of 120 kVp?
1. AP abdomen
2. Chest radiograph
3. Barium-filled stomach
(A) 1 only
(B) 2 only
(C) 1 and 2 only
(D) 2 and 3 only ✔Correct Answer-Chest Radiography
Barium-Filled Stomach
A film emulsion having wide latitude is likely to exhibit
(A) high density.
(B) low density.
(C) high contrast.
(D) low contrast. ✔Correct Answer-Low Contrast.
How is the mAs adjusted in an AEC system as the film / screen combination is decreased?
(A) The mAs increases as film / screen speed decreases.
(B) Both the mAs and the kVp increase as film / screen speed decreases.
(C) The mAs decreases as film / screen speed decreases.
(D) The mAs remains unchanged as film / screen speed decreases.
(Saia, p 305) ✔Correct Answer-The mAs remains unchanged as film / screen speed decreases.
A particular radiograph was produced using 6 mAs and 110 kVp with an 8:1 ratio grid. The radiograph
is to be repeated using a 16:1 ratio grid. What should be the new mAs?
(A) 3 mAs
(B) 6 mAs
(C) 9 mAs
(D) 12 mAs
(Saia, p 328) ✔Correct Answer-9 mAs
--To adjust exposure factors, you simply compare the old with the new:
6 (old mAs) 4 (old grid factor)
___________=______________
x (new mAs) 6 (new grid factor)
