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SIMULATED EXAM #3 (COMPUTED TOMOGRAPHY) - MOSBY'S QUESTIONS AND ANSWERS $15.49   Add to cart

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SIMULATED EXAM #3 (COMPUTED TOMOGRAPHY) - MOSBY'S QUESTIONS AND ANSWERS

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  • Course
  • Computed Tomography
  • Institution
  • Computed Tomography

SIMULATED EXAM #3 (COMPUTED TOMOGRAPHY) - MOSBY'S QUESTIONS AND ANSWERS

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  • August 18, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Computed Tomography
  • Computed Tomography
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SIMULATED EXAM #3 (COMPUTED
TOMOGRAPHY) - MOSBY'S QUESTIONS
AND ANSWERS
Bismuth - Answer-During CT exams of the chest and abdomen, the highly
radiosensitive breast tissue can be protected with minimal image artifact with the use of
what specialized shielding?

1, 2, and 3 - Answer-The use of water as an oral contrast material for CT of the
abdomen and/or pelvis has several potential advantages, including:

1. Increased palatability and improved patient comfort
2. Better demonstration of enhancing bowel wall
3. No interference with 3D applications

Increased pitch - Answer-If all other technical factors remain constant, which would
serve to decrease patient radiation dose during a helical SSCT exam?

a. Decreased scan field of view
b. Decreased filtration
c. Increased pitch
d. Increased matrix size

The pressure within the arterial vessels during contraction of the heart - Answer-A
patient's blood pressure is measured as 140/70 mm Hg. The number 140 represents
_____.

Non-ionic - Answer-A(n) _____ contrast material may be described as one that does not
dissociate into charged particles in solution.

Dose length product (DLP) - Answer-Which radiation dose is a measure of the total
radiation exposure for an entire series of CT images?

a. CTDI100
b. Dose length product (DLP)
c. CTDIvol
d. Multiple scan average dose (MSAD)

1 and 3 only - Answer-Proper immobilization during a CT exam may involve the use of:

1. Soft, hook-and-loop Velcro immobilization straps
2. Adhesive medical tape
3. Good patient communication

, 70 +/- 14 mL/min/m^2 - Answer-The normal range of glomerular filtration rate for men is
____

Tissue radiosensitivity - Answer-Effective dose is a relative radiation dose measurement
term that accounts for the _____.

1 and 2 only - Answer-Risk factors for contrast-induced nephrotoxicity include:

1. Diabetes
2. Advanced age
3. Hematuria

Medical asepsis - Answer-The reduction in number of infectious organisms without a
complete elimination is termed ______

65-75 bpm - Answer-Which is the preferred range for patient heart rate for optimal
cardiac CT exams?

a. 65-75 bpm
b. 75-85 bpm
c. 85-95 bpm
d. >100 bpm

Stochastic - Answer-Late effects of radiation, such as genetic mutations, may occur with
even small doses of radiation, termed ______

Hives - Answer-Urticaria is ____

Barium Sulfate - Answer-Which type of oral contrast material could cause peritonitis if
leakage from the digestive tract occurs from perforation?

a. Iopamidol (Gastrografin)
b. Barium Sulfate
c. Diatrizoate (Hypaque)
d. Effervescent granules

Decreased risk of CIN - Answer-Which is NOT an advantage of an automatic power
injector over the manual bolus method of intravenous contrast agent administration?

a. Uniform contrast enhancement throughout the exam
b. Consistent contrast agent administration for all patients
c. Decreased risk of contrast-induced nephrotoxicity
d. Shorter injection times

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