ARRT Registry Review 1 with correct
answers 100% 2026
What most effectively minimizes radiation exposure to the patient? - Correct Answers Beam
restriction
Radiographic subjects composed of just a few, very dissimilar tissue densities are likely to
produce: - Correct Answers High radiographic contrast
In which of the following positions are the pyloric canal and duodenal bulb best demonstrated
during a GI series?
A. RAO
B. left lateral
C. recumbent PA
D. recumbent AP - Correct Answers A. RAO
According to NCRP regulations, leakage radiation from the x-ray tube must NOT exceed: -
Correct Answers 100mR/hr
When a patient with an arm injury needs help undressing, where should you remove clothing
first? - Correct Answers From the uninjured arm
What electrical device will prevent equipment damage in the event of a circuit overload? -
Correct Answers Circuit breaker
The housing surrounding an x-ray tube function is to:
1. keep leakage radiation to a minimum
2. protect from electrical shock
3. retain heat within the glass envelope
,A. 1 only
B. 1 & 2 only
C. 1 & 3 only
D. 1, 2, & 3 - Correct Answers B. 1 & 2 only
The quantity of x-ray photons delivered to the patient in a given exposure is PRIMARILY
regulated by: - Correct Answers mAs
Arthrography of the shoulder is often performed to evaluate: - Correct Answers Rotator cuff
tears
One rule of radiation protection is that radiation must scatter at LEAST how many times before
reaching the operator? - Correct Answers 2
As diagnostic x-rays travel through matter, ionization occurs. A positive ion may be created by
what? - Correct Answers Removal of orbital electrons
The escape of blood into surrounding tissues is called: - Correct Answers Extravasation
The manubrial notch is approximately at the same level as the: - Correct Answers T2-T3
insterspace
Filters used in radiographic x-ray tubes are generally composed of: - Correct Answers Aluminum
An undifferentiated cell is a:
1. precursor cell
, 2. stem cell
3. mature cell
A. 1 only
B. 1 & 2 only
C. 2 & 3 only
D. 1, 2 & 3 only - Correct Answers B. 1 & 2 only
Substituting intensifying screens with a speed of 200 for a 100 speed system will:
1. require 50% less exposure than 100 speed
2. increase the production of scatter
3. enable the decrease of exposure time
A. 1 only
B. 2 only
C. 1 & 3 only
D. 1, 2 & 3 - Correct Answers C. 1 & 3 only
Grid ratio is defined as the relationship between the height of the lead strip and the: - Correct
Answers distance between the lead strips
When examining the clavicle in the PA position, how is the CR directed for the axial projection? -
Correct Answers Caudad
The Law of Bergonie and Tribondeau states that cells are more radiosensitive if they are:
1. highly mitotic
2. undiffrentiated
answers 100% 2026
What most effectively minimizes radiation exposure to the patient? - Correct Answers Beam
restriction
Radiographic subjects composed of just a few, very dissimilar tissue densities are likely to
produce: - Correct Answers High radiographic contrast
In which of the following positions are the pyloric canal and duodenal bulb best demonstrated
during a GI series?
A. RAO
B. left lateral
C. recumbent PA
D. recumbent AP - Correct Answers A. RAO
According to NCRP regulations, leakage radiation from the x-ray tube must NOT exceed: -
Correct Answers 100mR/hr
When a patient with an arm injury needs help undressing, where should you remove clothing
first? - Correct Answers From the uninjured arm
What electrical device will prevent equipment damage in the event of a circuit overload? -
Correct Answers Circuit breaker
The housing surrounding an x-ray tube function is to:
1. keep leakage radiation to a minimum
2. protect from electrical shock
3. retain heat within the glass envelope
,A. 1 only
B. 1 & 2 only
C. 1 & 3 only
D. 1, 2, & 3 - Correct Answers B. 1 & 2 only
The quantity of x-ray photons delivered to the patient in a given exposure is PRIMARILY
regulated by: - Correct Answers mAs
Arthrography of the shoulder is often performed to evaluate: - Correct Answers Rotator cuff
tears
One rule of radiation protection is that radiation must scatter at LEAST how many times before
reaching the operator? - Correct Answers 2
As diagnostic x-rays travel through matter, ionization occurs. A positive ion may be created by
what? - Correct Answers Removal of orbital electrons
The escape of blood into surrounding tissues is called: - Correct Answers Extravasation
The manubrial notch is approximately at the same level as the: - Correct Answers T2-T3
insterspace
Filters used in radiographic x-ray tubes are generally composed of: - Correct Answers Aluminum
An undifferentiated cell is a:
1. precursor cell
, 2. stem cell
3. mature cell
A. 1 only
B. 1 & 2 only
C. 2 & 3 only
D. 1, 2 & 3 only - Correct Answers B. 1 & 2 only
Substituting intensifying screens with a speed of 200 for a 100 speed system will:
1. require 50% less exposure than 100 speed
2. increase the production of scatter
3. enable the decrease of exposure time
A. 1 only
B. 2 only
C. 1 & 3 only
D. 1, 2 & 3 - Correct Answers C. 1 & 3 only
Grid ratio is defined as the relationship between the height of the lead strip and the: - Correct
Answers distance between the lead strips
When examining the clavicle in the PA position, how is the CR directed for the axial projection? -
Correct Answers Caudad
The Law of Bergonie and Tribondeau states that cells are more radiosensitive if they are:
1. highly mitotic
2. undiffrentiated
