ARRT CI REVISION EXAMS 2025/2026 QUESTIONS WITH
ANSWERS TAGGED A+
✔✔Which of the following increases the flow rate of contrast media?
A. decreased pressure
B. decreased viscosity
C. increased catheter length
D. decreased catheter diameter - ✔✔Answer: B
Decreased viscosity of contrast material will increase the flow rate. Decreased pressure,
increased catheter length, and decreased catheter diameter will all decrease the flow
rate.
✔✔Which of the following is not part of the Seldinger technique?
A. a compound needle pierces the artery completely
B. the artery is opened surgically
C. a guide wire is introduced through a compound needle
D. the guide wire is removed - ✔✔
✔✔Which of the following basic components are part of an automatic injector?
1. high pressure mechanism
2. contrast material
3. heating device
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1,2, and 3 - ✔✔
✔✔Which of the following film sizes are used for cinefluorography?
1. 8mm
2. 16mm
3. 35mm
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1,2, and 3 - ✔✔
✔✔What term describes the size of a needle lumen?
A. cannula thickness
B. coil size
C. core size
D. gauge - ✔✔Answer D
The needle lumen is identified by a gauge number. The higher the gauge number, the
smaller the inner diameter of the lumen and vice versa.
✔✔Which of the following is likely to result from heparin on a wrapped wire?
,A. unraveling is reduced
B. friction is reduced
C. blood clotting is reduced
D. blood clotting is increased - ✔✔
✔✔What is the purpose of the slow withdrawal of the needle after arterial penetration in
the Seldinger technique?
A. avoidance of major nerves
B. reduction of blood clotting
C. to attain good blood return
D. to avoid vascular shock - ✔✔Answer C
The purpose of the slow withdrawal of the needle after arterial penetration in the
Seldinger technique is to attain good blood return.
✔✔ - ✔✔Answer D
An automatic pressure injector, automatic film changer, and electrocardiograph can all
be linked for triggering by the exposure switch.
✔✔Which of the following factors contribute to increasing catheter flow rate?
1. external diameter
2. internal diameter
3. wall thickness
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔
✔✔What is zero time?
A. the time between exposure switch contact and initiation of exposure
B. the time necessary for the electronics in an automatic film changer to respond.
C. the time between contrast material injection and the initiation of exposure
D. the time between x-ray exposure and the injection of contrast material - ✔✔Answer B
✔✔What can be determined when dividing the volume of contrast material delivered by
the rate of injection?
A. coefficient of contrast media viscosity
B. length of time of injection
C. arterial pressure per cc
D. length of catheter in centimeters - ✔✔Answer B
✔✔Which of the following procedures would indicate the use of a multiple side hole
catheter?
1. abdominal aorta
2. aortic arch
3. renal artery
, A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer A
✔✔What technique is used to introduce the catheter during a percutaneous transluminal
angioplasty?
A. cut-down method
B. Thompson technique
C. Seldinger technique
D. Addison technique - ✔✔Answer C
✔✔Which of the following are unacceptable placement of catheter holes?
1. directly opposing side holes
2. taper tip placement
3. side holes at curvature
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer D
✔✔What is the average adult guide wire length for a selective vessel procedure?
A. 30 to 40 cm
B. 50 to 60 cm
C. 70 to 80 cm
D. 100 to 150 cm - ✔✔Answer D
✔✔Which of the following are desirable characteristics of a cine film transport system?
1. flickerless image projection
2. single frame ability
3. variable forward and reverse
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer D
Flickerless image projection, single frame ability, and variable forward and reverse are
all desirable characteristics of a cine film transport system
✔✔What are the major sources of random noise in a digital fluoroscopy image?
1. unshielded electrical devices
2. quantum noise from fluctuations in photon density
3. electronic noise from the TV chain
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
ANSWERS TAGGED A+
✔✔Which of the following increases the flow rate of contrast media?
A. decreased pressure
B. decreased viscosity
C. increased catheter length
D. decreased catheter diameter - ✔✔Answer: B
Decreased viscosity of contrast material will increase the flow rate. Decreased pressure,
increased catheter length, and decreased catheter diameter will all decrease the flow
rate.
✔✔Which of the following is not part of the Seldinger technique?
A. a compound needle pierces the artery completely
B. the artery is opened surgically
C. a guide wire is introduced through a compound needle
D. the guide wire is removed - ✔✔
✔✔Which of the following basic components are part of an automatic injector?
1. high pressure mechanism
2. contrast material
3. heating device
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1,2, and 3 - ✔✔
✔✔Which of the following film sizes are used for cinefluorography?
1. 8mm
2. 16mm
3. 35mm
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1,2, and 3 - ✔✔
✔✔What term describes the size of a needle lumen?
A. cannula thickness
B. coil size
C. core size
D. gauge - ✔✔Answer D
The needle lumen is identified by a gauge number. The higher the gauge number, the
smaller the inner diameter of the lumen and vice versa.
✔✔Which of the following is likely to result from heparin on a wrapped wire?
,A. unraveling is reduced
B. friction is reduced
C. blood clotting is reduced
D. blood clotting is increased - ✔✔
✔✔What is the purpose of the slow withdrawal of the needle after arterial penetration in
the Seldinger technique?
A. avoidance of major nerves
B. reduction of blood clotting
C. to attain good blood return
D. to avoid vascular shock - ✔✔Answer C
The purpose of the slow withdrawal of the needle after arterial penetration in the
Seldinger technique is to attain good blood return.
✔✔ - ✔✔Answer D
An automatic pressure injector, automatic film changer, and electrocardiograph can all
be linked for triggering by the exposure switch.
✔✔Which of the following factors contribute to increasing catheter flow rate?
1. external diameter
2. internal diameter
3. wall thickness
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔
✔✔What is zero time?
A. the time between exposure switch contact and initiation of exposure
B. the time necessary for the electronics in an automatic film changer to respond.
C. the time between contrast material injection and the initiation of exposure
D. the time between x-ray exposure and the injection of contrast material - ✔✔Answer B
✔✔What can be determined when dividing the volume of contrast material delivered by
the rate of injection?
A. coefficient of contrast media viscosity
B. length of time of injection
C. arterial pressure per cc
D. length of catheter in centimeters - ✔✔Answer B
✔✔Which of the following procedures would indicate the use of a multiple side hole
catheter?
1. abdominal aorta
2. aortic arch
3. renal artery
, A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer A
✔✔What technique is used to introduce the catheter during a percutaneous transluminal
angioplasty?
A. cut-down method
B. Thompson technique
C. Seldinger technique
D. Addison technique - ✔✔Answer C
✔✔Which of the following are unacceptable placement of catheter holes?
1. directly opposing side holes
2. taper tip placement
3. side holes at curvature
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer D
✔✔What is the average adult guide wire length for a selective vessel procedure?
A. 30 to 40 cm
B. 50 to 60 cm
C. 70 to 80 cm
D. 100 to 150 cm - ✔✔Answer D
✔✔Which of the following are desirable characteristics of a cine film transport system?
1. flickerless image projection
2. single frame ability
3. variable forward and reverse
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 - ✔✔Answer D
Flickerless image projection, single frame ability, and variable forward and reverse are
all desirable characteristics of a cine film transport system
✔✔What are the major sources of random noise in a digital fluoroscopy image?
1. unshielded electrical devices
2. quantum noise from fluctuations in photon density
3. electronic noise from the TV chain
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
