ASRT Seal Exam #4 Questions and Answers Latest Update 2025-2026
The ___________ data acquisition mode moves the bed through the CT gantry while the xray tube
- Answers scout
Which type of contrast media would pose the greatest risk to patients during a CTA procedure -
Answers meglumine iothalamate (conray)
Faulty or out of calibration detector elements produce - Answers ring artifacts
When taking a patients temperature, which site will yield a lower temp than others - Answers
axillary
What is a benefit of a post contrast saline bolus during cardiac CT - Answers reduce streak
artifacts in the SVC
What imaging plane is parallel to the foots plantar surface - Answers direct axial
In CT detectors, rapid signal decay means that the detector is - Answers able to quickly
measure transmitted xray photons with limited afterglow
While performing a CT scan of the lumbar spine, a patients knees may be placed over a cushion
to - Answers improve patient comfort by alleviating lower back pressure
What are the three phases of tissue enhancement after contrast injection - Answers bolus,
equilibrium, nonequilibrium
A ________________ high resolution CT of the chest is optimal for evaluating interstitial lung
disease involving dependent areas of the lung - Answers prone inspiration
What controls the kinetic energy of projectile electrons as they travel from the cathode to the
anode for xray production - Answers kVp
The __________ corresponds to the longitudinal plane and determines the thickness of a cross-
sectional axial slice - Answers z-axis
What can be used to relax the mouth muscles of arteries and veins to treat the sudden onset of
angina pain - Answers Nitroglycerin
Which body type will require the highest radiographic technique for imaging - Answers
hypersthenic
The falciform ligament extends from the liver to the - Answers anterior abdominal wall and
diaphragm
In a single slice CT scanner, pre patient collimation is used to - Answers ensure the xray beam is
the proper width
The ___________ data acquisition mode moves the bed through the CT gantry while the xray tube
- Answers scout
Which type of contrast media would pose the greatest risk to patients during a CTA procedure -
Answers meglumine iothalamate (conray)
Faulty or out of calibration detector elements produce - Answers ring artifacts
When taking a patients temperature, which site will yield a lower temp than others - Answers
axillary
What is a benefit of a post contrast saline bolus during cardiac CT - Answers reduce streak
artifacts in the SVC
What imaging plane is parallel to the foots plantar surface - Answers direct axial
In CT detectors, rapid signal decay means that the detector is - Answers able to quickly
measure transmitted xray photons with limited afterglow
While performing a CT scan of the lumbar spine, a patients knees may be placed over a cushion
to - Answers improve patient comfort by alleviating lower back pressure
What are the three phases of tissue enhancement after contrast injection - Answers bolus,
equilibrium, nonequilibrium
A ________________ high resolution CT of the chest is optimal for evaluating interstitial lung
disease involving dependent areas of the lung - Answers prone inspiration
What controls the kinetic energy of projectile electrons as they travel from the cathode to the
anode for xray production - Answers kVp
The __________ corresponds to the longitudinal plane and determines the thickness of a cross-
sectional axial slice - Answers z-axis
What can be used to relax the mouth muscles of arteries and veins to treat the sudden onset of
angina pain - Answers Nitroglycerin
Which body type will require the highest radiographic technique for imaging - Answers
hypersthenic
The falciform ligament extends from the liver to the - Answers anterior abdominal wall and
diaphragm
In a single slice CT scanner, pre patient collimation is used to - Answers ensure the xray beam is
the proper width
