Answers!!
1. What should be done if extravasation is noticed at the B
injection site?
a. apply ice and continue injecting
b. stop the injection immediately
c. slap the area
d. apply heat during the injection
2. Which of the following is the order in which the phases C
of IV contrast enhancement occur?
a. bolus, equilibrium, non-equilibrium
b. equilibrium, non-equilibrium, bolus
c. bolus, non-equilibrium, equilibrium
d. non-equilibrium, equilibrium, bolus
3. Which of the following oral contrast agents is better for
3 only
opacifying the distal small intestine?
1. an ionic iodinated contrast agent
2. a non-ionic iodinated contrast agent
3. barium sulfate
4. The definition of osmolality is the the con- C
trast agent solution
a. thickness of
b. measure of dissociation of
c. concentration of molecular particles in
d. rate of injection of
5. When a contrast agent is injected directly into the joint
D
space it is known as contrast.
a. intravenous
b. intrathecal
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, CT Registry Review Post-Test 5 Questions With 100% Correct
Answers!!
c. oral
d. intraarticular
6. Which of the following characteristics of an IV contrast
1,2,3
agent affects patient tolerance?
1. concentration of iodine
2. osmolality
3. viscosity
7. The viscosity of IV contrast media can be reduced by: D
a. shaking
b. stirring
c. aerating
d. heating
8. The heating unit on a power injector is for of B
the contrast agent
a. increasing the iodine concentration
b. decreasing the viscosity
c. increasing the density
d. decreasing the osmolality
9. A difference in density of HU between the aor- C
ta and the inferior vena cava would indicate
the non-equilibrium phase of
enhancement
a. 43
b. 35
c. 25
d. 8
10. A delay of about seconds after the start of the
IV C contrast injection should be
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, CT Registry Review Post-Test 5 Questions With 100% Correct
Answers!!
used for a helical scan of the chest.
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