COMPUTED TOMOGRAPHY EXAM
QUESTIONS AND ANSWERS
Candidate who wish to obtain a certification in computed tomography must hold a
registration in which of the following supporting categories? - Answer-*Any one of the
above*
-Radiology
-Nuclear Medicine Technology
-Radiation Therapy
Minimum of how many hours of structured education credits required in topics that
reflect the CT certification examination content? - Answer-16
The American Registry of Radiologic Technologists (ARRT) post-primary examination in
CT was first offer in March ___________. - Answer-1995
Proper documentation of which of the following can greatly assist the interpreting
physician in the diagnostic process of a patient? - Answer-Patient's recent procedures,
surgeries, and symptoms
Possible trauma in patient
Specific areas of pain or discomfort in patient
Communication is the key to any successful patient interaction. - Answer-True
Which of the following high-density or metallic items should be removed from a patient
when necessary and appropriate during CT scanning? - Answer-*all the above*
jewelry
hair fasteners
electronic devices
A _________ must sign the information consent form for a minor. - Answer-Parent or
legal guardian
Which of the following can cause substantial image degradation during CT
examination? - Answer-patient motion.
Which of the follow are considered as vital signs? - Answer-*all*
temperature
pulse&blood pressure
respirations
Systolic blood pressure indicates the pressure within arteries during cardiac contraction
and should be less than ________ mm Hg. - Answer-120
, A _______ is an electronic device used to measure pules and respiratory status. -
Answer-pulse oximeter
Which of the following is a graphic representation of the electrical activity of the heart? -
Answer-an electrocardiogram (ECG)
The cardiac cycle can be divided into which of the following distinct stages? - Answer-
atrial systole
___________ refers to an insufficient oxygenation of tissue at the cellular level. -
Answer-hypoxia
Oxygen is considered a drug, and it is typically administered under the order of a
physician. - Answer-True
A _____ can be used to drain fluid from the intrapleural space of the ill or injured
patient. - Answer-Thoracostomy tube (chest tube)
CT technologists MUST take care to ensure that the urine drainage bag be kept below
the patients bladder at all times to prevent the ______ of urine when imaging a patient
with an in-dwelling catheter. - Answer-back-flow (reflux)
Blood urea nitrogen (BUN) and creatinine level are lab values used to indicate
__________. - Answer-renal function
__________ medications may be prescribed to reduce patient anxiety during a CT
examination. - Answer-Anxiolytic
Which of the following radiopaque contrast media (RCM) is typically used for CT
examination? - Answer-Iodine & Barium
Which of the following can be used as negative contrast agents during CT
examinations? - Answer-Air, Gasses, water
Which of the following are contraindication to IV iodinated contrast agents? - Answer-
allergy to iodine, history of allergic reaction, renal insufficiency or failure.
Intravascular RCM are generally administered in doses ranging from _______ml. -
Answer-50-150
________ is defined as reduction of intensity of a radiation beam as it passed through a
substance. - Answer-attenuation
Overall, an attenuation of the CT x-ray bema depends on which of the following factors?
- Answer-beam quality and atomic density of the imaged tissue
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