CT Computed Tomography Exam
Question 1. Which of the following is the most important step in screening a patient for a CT scan with
intravenous contrast?
A) Checking fasting status
B) Assessing for previous allergic reactions to contrast media
C) Measuring blood pressure
D) Measuring height and weight
Answer: B
Explanation: Assessing for previous allergic reactions to contrast media is crucial to prevent potentially
life-threatening reactions during the CT scan.
Question 2. What type of contrast media is most commonly used for abdominal and pelvic CT scans?
A) Gadolinium
B) Iodinated contrast
C) Barium sulfate
D) Air
Answer: B
Explanation: Iodinated contrast is the standard intravenous agent for enhancing abdominal and pelvic
CT images.
Question 3. When preparing a patient for a CT scan, what is the best way to ensure they remain still
during the procedure?
A) Sedate all patients
B) Explain the importance of not moving and provide clear instructions
C) Use physical restraints
D) Shorten the scan time
Answer: B
Explanation: Clear communication and instruction are key to patient cooperation and image quality.
Question 4. Which medical emergency requires immediate administration of epinephrine during a CT
procedure?
A) Cardiac arrest
B) Anaphylactic reaction to contrast
C) Hypoglycemia
D) Seizure
Answer: B
Explanation: Anaphylaxis is a severe allergic reaction to contrast and requires prompt epinephrine
administration.
Question 5. In which situation is oral contrast most likely indicated for a CT?
A) CT angiography of the brain
B) CT of the lumbar spine
C) Evaluation of bowel pathology in the abdomen
D) Screening for pulmonary embolism
Answer: C
Explanation: Oral contrast helps delineate the gastrointestinal tract during abdominal imaging.
