ARRT 2024-2025 Final Exam Guide: Authentic Test Bank with
200 Detailed Questions & Answers for Top Graded Success
Contrast resolution of a CR/DR image is determined by the _______ of the system. a.
matrix size
b. bit depth
c. sampling frequency
d. dynamic range
B
A radiographic image of the LPO projection of the lumber spine reveals that the downside pedicle is
projected too far posteriorly on to the vertebral body. What specific positioning error is present on
this radiographic image?
a. excessive rotation of the spine
b. tilt of the spine
c. incorrect CR placement
d. insufficient rotation of the spine
A
A secondary barrier is designed to absorb ____ radiation. 1.
leakage 2. scattered 3. primary
a. 1 only
b. 2 only
,c. 3 only
d. Both 1 and 2.
D
A technologist can reduce his or her exposure during fluoroscopy by stepping: 1. back from the
patient. 2. behind the radiologist. 3. close to the patient's head. a. 1 & 3 only
b. 1 only
c. 2 & 3 only
d. 1 & 2 only
D
A(n) ____ effect increases with incidence but not severity as the dose increases. a.
stochastic
b. localized
c. early
d. deterministic (tissue reaction)
A
Air or gas that escapes into the pleural cavity results in a condition known as: a.
air bronchogram
b. pneumothorax
c. hemidiaphragm
d. hemothorax
B
,Which of the following is not appropriate for a technologist to do? a.
compare the imaging order to the patient's history
b. identify the patient using name and birth date
c. crop off anatomy on the processed image
d. use a sandbag as an immobilization device while positioning a patient C
Because of the anode heel effect, x-ray beam intensity: a.
is greater under the cathode side of the tube.
b. is greater under the anode side of the tube.
c. is equal across the beam long axis.
d. changes with patient position.
A
Compared with a low-ratio grid, a high-ratio grid will
1. allow more centering latitude
2. absorb more scattered radiation 3. absorb more primary radiation
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2, and 3
C
During a fluoroscopic examination, a resettable cumulative timing device times the x-ray beam-on
time and sounds an audible alarm or temporarily interrupts the exposure after the fluoroscope has
been activated for what length of time? a. 1 minute
b. 3 minutes
, c. 5 minutes
d. 10 minutes
C
During a single-contrast barium enema, the radiologist detects a possible defect within the right colic
flexure. Which of the following projections best demonstrate this region of the colon? a. AP axial
b. LPO
c. RPO
d. LAO
B
Exposure (Gy a ) refers to radiation intensity in ____. a.
air
b. skin
c. water
d. gonads A
Exposure to the technologist is lowest during mobile C-arm fluoroscopy if the x-ray tube is placed: a.
facing the technologist.
b. under the patient.
c. over the patient.
d. facing the wall.
B
How will the digital xray image appear if it is grossly overexposed? a.
The image will be grainy.
200 Detailed Questions & Answers for Top Graded Success
Contrast resolution of a CR/DR image is determined by the _______ of the system. a.
matrix size
b. bit depth
c. sampling frequency
d. dynamic range
B
A radiographic image of the LPO projection of the lumber spine reveals that the downside pedicle is
projected too far posteriorly on to the vertebral body. What specific positioning error is present on
this radiographic image?
a. excessive rotation of the spine
b. tilt of the spine
c. incorrect CR placement
d. insufficient rotation of the spine
A
A secondary barrier is designed to absorb ____ radiation. 1.
leakage 2. scattered 3. primary
a. 1 only
b. 2 only
,c. 3 only
d. Both 1 and 2.
D
A technologist can reduce his or her exposure during fluoroscopy by stepping: 1. back from the
patient. 2. behind the radiologist. 3. close to the patient's head. a. 1 & 3 only
b. 1 only
c. 2 & 3 only
d. 1 & 2 only
D
A(n) ____ effect increases with incidence but not severity as the dose increases. a.
stochastic
b. localized
c. early
d. deterministic (tissue reaction)
A
Air or gas that escapes into the pleural cavity results in a condition known as: a.
air bronchogram
b. pneumothorax
c. hemidiaphragm
d. hemothorax
B
,Which of the following is not appropriate for a technologist to do? a.
compare the imaging order to the patient's history
b. identify the patient using name and birth date
c. crop off anatomy on the processed image
d. use a sandbag as an immobilization device while positioning a patient C
Because of the anode heel effect, x-ray beam intensity: a.
is greater under the cathode side of the tube.
b. is greater under the anode side of the tube.
c. is equal across the beam long axis.
d. changes with patient position.
A
Compared with a low-ratio grid, a high-ratio grid will
1. allow more centering latitude
2. absorb more scattered radiation 3. absorb more primary radiation
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2, and 3
C
During a fluoroscopic examination, a resettable cumulative timing device times the x-ray beam-on
time and sounds an audible alarm or temporarily interrupts the exposure after the fluoroscope has
been activated for what length of time? a. 1 minute
b. 3 minutes
, c. 5 minutes
d. 10 minutes
C
During a single-contrast barium enema, the radiologist detects a possible defect within the right colic
flexure. Which of the following projections best demonstrate this region of the colon? a. AP axial
b. LPO
c. RPO
d. LAO
B
Exposure (Gy a ) refers to radiation intensity in ____. a.
air
b. skin
c. water
d. gonads A
Exposure to the technologist is lowest during mobile C-arm fluoroscopy if the x-ray tube is placed: a.
facing the technologist.
b. under the patient.
c. over the patient.
d. facing the wall.
B
How will the digital xray image appear if it is grossly overexposed? a.
The image will be grainy.
