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CT EXAM QUESTIONS AND ANSWERS
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CT EXAM QUESTIONS AND ANSWERS
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CT EXAM QUESTIONS AND ANSWERSAn average range for activated PTT is:
A. 10-12 seconds
B. 17-21 seconds
C. 25-35 seconds
D. 43-55 seconds - Answer-C. 25-35 seconds
Which of the following is the correct angle of insertion for placing a butterfly needle into
a vein for intravenous administration of a contrast agent?
A. 5•
B. 15•
C. 45•
D. 60• - Answer-B. 15 degrees
A total volume of 125 mL of an iodinated contrast agent is administered intravenously
via automatic injection in 50 seconds. The flow rate for this injection is:
A. 0.75 mL/sec
B. 1.25 mL/sec
C. 1.75 mL/sec
D. 2.5 mL/sec - Answer-D. 2.5 mL/sec
The acronym CTDI is used to describe which of the following?
A. A specialized CT imaging technique used to measure bone mineral density
B. A quality control test that measures the accuracy of the laser lighting system
C. The radiation dose to the patient during CT scan
D. A high-speed CT scanner used for cardiac imaging - Answer-C. The radiation dose
to the patient during CT scan
While one is obtaining a thorough history from a patient prior to the intravenous injection
of an iodinated contrast material, which of the following topics should be included?
1. Any prior allergic reactions to contrast media
2. Presence of HIV or hepatitis infection
3. History of asthma
A. 1 only
B. 1 and 2 only
C. 1 and 3 only
D. 1, 2, and 3 - Answer-C. 1 and 3 only
Which of the following factors may affect a patients calculated glomerular filtration rate
(GFR)?
1. Age
2. Sex
3. Race
, A. 1 and 2
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
Which of the following intravenous contrast agent administration methods provides the
greatest overall plasma iodine concentration?
A. Drip infusion
B. Bolus technique
C. Biphasic technique
D. CT portography - Answer-B. Bolus technique
A patient in shock may exhibit which of the following symptoms?
1. Tachycardia
2. Rapid, shallow breathing
3. Cyanosis
A. 1 only
B. 1 and 2 only
C. 1 and 3 only
D. 1, 2, and 3 - Answer-D. 1, 2, and 3
The drug SOLU-CORTEF may be classified as which of the following?
A. Anticholinergic
B. Bronchodilator
C. Antihistamine
D. Corticosteroid - Answer-D. Corticosteroid
Which of the following technical factors has a direct effect on patient dose?
A. Matrix size
B. Algorithm
C. mAs
D. Window level - Answer-C. mAs
Which of the following is a non-ionic contrast material?
A. Iodamide
B. Iothalamate
C. Iohexol
D. Diatrizoate - Answer-C. Iohexol
Which of the following terms is used to describe a patient who is having difficulty
breathing?
A. Dyslexia
B. Dyspnea
C. Dysphagia
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