CT Exam 3 Questions with correct answers
Accurate demonstration of _______________ would most likely require the intravenous injection of an iodinated
contrast agent during a CT study of the chest. - VERIFIED ANSWER✔✔-pulmonary embolism
CT images of a routine chest should be acquired with the patient: - VERIFIED ANSWER✔✔-at full inspiration
Which of the following pathologic processes may be considered an interstitial disease of the lung? - VERIFIED
ANSWER✔✔-bronchiectasis
Please choose all that apply to positioning and scanning of a CT chest: - VERIFIED ANSWER✔✔--120 kV
-soft tissue and lung window!
-arms above head
-supine
-feet first in the gantry
Choose all of the indications below that would warrant a CT of the chest:
(Choose all that apply) - VERIFIED ANSWER✔✔--interstitial lung disease
-pulmonary nodules
-abnormal chest x-ray
Which of the following is a lung window: - VERIFIED ANSWER✔✔-WW 2000
WL -600
The use of a saline flush after the injection of the iodinated contrast is recommended for a CTA pulmonary artery
study. Why? - VERIFIED ANSWER✔✔-to reduce or eliminate beam hardening artifacts from dense contrast
media within the superior vena cava that may obscure small emboli in adjacent vessels
In addition to imaging the pulmonary arterial system for patients with suspected PE, CT venography is sometimes
performed to assess for venous thrombosis within the pelvis and lower extremities. How is this accomplished? -
VERIFIED ANSWER✔✔-a second scan series is obtained in a delayed venous phase approximately 180 seconds
after IV contrast injection from the iliac crest to the knees.
Which is not a technical parameter used in CT imaging of the chest? - VERIFIED ANSWER✔✔-thick slices
Which of the following pharmaceuticals may be administered prior to a cardiac CT procedure in an effort to
improve visualization of the coronary vessels?
1. beta blockers
2. nitroglycerin
3. metformin - VERIFIED ANSWER✔✔-1 and 2 only
What does a CT calcium score of 1-10 indicate? - VERIFIED ANSWER✔✔-minimal plaque
Beta-blockers are used as part of a CT cardiac protocol to lower the heart rate to less than how many beats per
minute (bpm)? - VERIFIED ANSWER✔✔-65-70 bpm
Cardiac computed tomography applications include all of the following except: - VERIFIED ANSWER✔✔-gated
stress imaging
Cardiac computed tomography applications include quantitative assessment of coronary artery calcifications,
ventricular function assessment, coronary angiography assessment of pulmonary veins, cardiac masses and
pericardial disease, and coronary artery bypass grafts. - VERIFIED ANSWER✔✔-...
For high resolution CT of the thorax _____________ images can help to differentiate actual disease from
densities owing to the effects of gravity that mimic disease. - VERIFIED ANSWER✔✔-prone
Accurate demonstration of _______________ would most likely require the intravenous injection of an iodinated
contrast agent during a CT study of the chest. - VERIFIED ANSWER✔✔-pulmonary embolism
CT images of a routine chest should be acquired with the patient: - VERIFIED ANSWER✔✔-at full inspiration
Which of the following pathologic processes may be considered an interstitial disease of the lung? - VERIFIED
ANSWER✔✔-bronchiectasis
Please choose all that apply to positioning and scanning of a CT chest: - VERIFIED ANSWER✔✔--120 kV
-soft tissue and lung window!
-arms above head
-supine
-feet first in the gantry
Choose all of the indications below that would warrant a CT of the chest:
(Choose all that apply) - VERIFIED ANSWER✔✔--interstitial lung disease
-pulmonary nodules
-abnormal chest x-ray
Which of the following is a lung window: - VERIFIED ANSWER✔✔-WW 2000
WL -600
The use of a saline flush after the injection of the iodinated contrast is recommended for a CTA pulmonary artery
study. Why? - VERIFIED ANSWER✔✔-to reduce or eliminate beam hardening artifacts from dense contrast
media within the superior vena cava that may obscure small emboli in adjacent vessels
In addition to imaging the pulmonary arterial system for patients with suspected PE, CT venography is sometimes
performed to assess for venous thrombosis within the pelvis and lower extremities. How is this accomplished? -
VERIFIED ANSWER✔✔-a second scan series is obtained in a delayed venous phase approximately 180 seconds
after IV contrast injection from the iliac crest to the knees.
Which is not a technical parameter used in CT imaging of the chest? - VERIFIED ANSWER✔✔-thick slices
Which of the following pharmaceuticals may be administered prior to a cardiac CT procedure in an effort to
improve visualization of the coronary vessels?
1. beta blockers
2. nitroglycerin
3. metformin - VERIFIED ANSWER✔✔-1 and 2 only
What does a CT calcium score of 1-10 indicate? - VERIFIED ANSWER✔✔-minimal plaque
Beta-blockers are used as part of a CT cardiac protocol to lower the heart rate to less than how many beats per
minute (bpm)? - VERIFIED ANSWER✔✔-65-70 bpm
Cardiac computed tomography applications include all of the following except: - VERIFIED ANSWER✔✔-gated
stress imaging
Cardiac computed tomography applications include quantitative assessment of coronary artery calcifications,
ventricular function assessment, coronary angiography assessment of pulmonary veins, cardiac masses and
pericardial disease, and coronary artery bypass grafts. - VERIFIED ANSWER✔✔-...
For high resolution CT of the thorax _____________ images can help to differentiate actual disease from
densities owing to the effects of gravity that mimic disease. - VERIFIED ANSWER✔✔-prone
