Mosby's NBDHE Exam Tested Questions With Revised Correct Detailed Answers With Detailed Images >Latest Update>>
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Course
NBDHE
Institution
NBDHE
Mosby's NBDHE Exam
Tested Questions With Revised
Correct Detailed Answers
With Detailed Images
>Latest Update>>
1. This image of the abdomen was most likely acquired in which of the following
renal enhancement phases?
A. Pre-contrast
B. Corticomedullary
C. Nephrographi...
Mosby's NBDHE Exam
Tested Questions With Revised
Correct Detailed Answers
With Detailed Images
>Latest Update>>
1. This image of the abdomen was most likely acquired in which of the following
renal enhancement phases?
A. Pre-contrast
B. Corticomedullary
C. Nephrographic
D. Excretory
C. Nephrographic
The nephrographic phase occurs between 70 and 90 seconds after the start of
injection. Enhancement between renal cortex and medulla reaches equilibrium,
providing optimal sensitivity for parenchymal lesions.
2. Number 1 corresponds to which of the following?
A. Renal artery
B. Hepatic vein
,C. Superior mesenteric artery
D. Celiac trunk
C. Superior mesenteric artery
3. Which of the following would best describe the position of the patient during
data acquisition?
A. Supine
B. Prone
C. Right lateral decubitus
D. Left lateral decubitus
A. Supine
The obvious air-fluid level in the transverse colon (5) indicates that the patient
was imaged in the supine position.
4. Number 3 corresponds to which of the following?
A. Renal artery
B. Hepatic vein
C. Superior mesenteric artery
D. Celiac trunk
D. Celiac trunk
,5. Number 2 corresponds to which of the following?
A. Spleen
B. Liver
C. Kidney
D. Pancreas
B. Liver
6. Assuming a bolus injection of iodinated contrast agent at a rate of at least 4
mL/sec, an appropriate scan delay for a CTA examination of the mesenteric
vasculature would be in the range of:
A. 5 to 8 seconds.
B. 20 to 30 seconds.
C. 45 to 60 seconds.
D. 70 to 90 seconds.
B. 20 to 30 seconds.
Dual-phase imaging including the arterial phase (20 to 30 seconds) and portal
venous phase (60 to 70 seconds) is typically performed for complete evaluation of
the mesenteric vasculature. The use of bolus-tracking software or test bolus
technique is recommended to ensure appropriate scan timing.
7. An IV contrast enhanced specialized CT evaluation of the small bowel after the
oral administration of a low-density (0.1%) barium sulfate solution is termed:
A. CT enteroclysis.
B. CT colonography.
, C. CT enterography.
D. CT colonoscopy.
C. CT enterography.
CT enterography does not involve contrast agent administration through a
nasogastric tube and is therefore less invasive than CT enteroclysis.
8. During CT colonography examinations, tagged fecal matter appears
__________ on the image.
A. black
B. gray
C. white
D. noisy
C. white
Dual-agent tagging involves the oral administration of both barium and water-
soluble iodinated contrast agent. The barium tags residual stool and coats the
surface of polyps. The iodine contrast tags residual fluid. Tagged fluid and fecal
matter exhibit high CT density and appear white on the CTC image. Tagging allows
for differentiation of polyp from fecal matter and improves the visualization of
polyps that may be surrounded by residual fluid.
9. The oral administration of barium and iodinated contrast media prior to CT
colonography serves the primary purpose of:
A. lesion enhancement.
B. insufflation.
C. catharsis.
D. polyp tagging.
D. polyp tagging.
Dual-agent tagging involves the oral administration of both barium and water-
soluble iodinated contrast. The barium tags residual stool and coats the surface of
polyps. The iodine contrast tags residual fluid. Tagged fluid and fecal matter
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