Mosby's CT Registry Review 3rd Edition
Practice Exam 3
1. 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 pt comfort
2. better demonstration of enhancing bowel wall
3. no interference with 3D applications: 1, 2, and 3
The use of water as a neg contrast agent is becoming increasingly
common for many
CT applications for the abdomen and pelvis
2. A pt's BP is measured 140/70 mm Hg. The number 140
represents:
a. pressure within arterial vessels during contraction of the
heart
b. pressure exerted on the chambers of the heart while it is
relaxed c. pressure within the arterial vessels while heart is
relaxed
d. pressure exerted on the chambers of the heart during a
contraction: the pressure within arterial vessels during
contraction of the heart
,3. A(n) CM may be described as one that does not
dissociate into charged particles in a solution.: nonionic
Ionic contrast materials are salts that form independent particles
in aqueous solu- tions. Nonionic contrast materials don't dissociate
into charged particles (ions) when placed in solution.
4. Proper immobilization during a CT procedure may involve
the use of:
1. soft, hook-and-loop (Velcro) immobilization straps
2. adhesive medical tape
3. good pt communication: 1 and 3 only
5. The normal range of GFR for men is:
a. 50 +/- 14 mL/min/m^2 b. 60 +/- 10 mL/min/m^2 c. 70 +/- 14
mL/min/m^2
d. 80 +/- 10 mL/min/m^2: 70 +/- 14 mL/min/m^2
Normal GFR for women is: 60 +/- 10 mL/min/m^2
6. Risk factors for contrast-induced nephrotoxicity (CIN)
include:
1. diabetes
2. advanced age
3. hematuria: 1 and 2 only
,Risk factors for CIN include preexisting compromise of renal
function, dehydration, diabetes, myeloma, advanced age, and
cardiovascular disease.
7. The reduction in number of infectious organisms w/o a
complete elimination is termed:
a. medical asepsis b. sterilization
c. surgical asepsis
d. immunization: medical asepsis
accomplished through the use of soap, water, and many other
types of disinfectant materials
8. Which of the following is preferred range for pt heart rate for
optimal cardiac studies?
a. 65-75 bpm b. 75-85 bpm c. 85-95 bpm
d. greater than 100 bpm: 65-75 bpm
pts with slower heart rates exhibit longer diastolic phases, which
yield higher-quality cardiac CT exams. The preferred heart rate for
optimal imaging on most MDCT systems is 65 bpm. Newer
systems at the 64-slice level and beyond are capable
of acquiring adequate cardiac CT images at higher heart rates.
9. Urticaria is another term for:: hives
, 10. Which of the following type(s) of oral CM could cause
peritonitis if leakage from the digestive tract occurs from
perforation?
a. iopamidol (Gastrografin)
b. barium sulfate
c. diatrizoate (Hypaque)
d. effervescent granules: barium sulfate
barium sulfate is not water soluble and is not easily absorbed by
the body. If it leaks out of the digestive tract because of
perforation, this agent may cause peritonitis
11. Which of the following is not an advantage of an
automatic power injector over the manual bolus method of IV
contrast agent administration?
a. uniform contrast enhancement throughout the exam b.
consistent contrast agent admin for all pts.
c. decreased risk of CIN
d. shorter injection times: decreased risk of CIN
12. Which of the following is/are severe adverse reactions to
iodinated IV
contrast media?
1. anaphylaxis
Practice Exam 3
1. 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 pt comfort
2. better demonstration of enhancing bowel wall
3. no interference with 3D applications: 1, 2, and 3
The use of water as a neg contrast agent is becoming increasingly
common for many
CT applications for the abdomen and pelvis
2. A pt's BP is measured 140/70 mm Hg. The number 140
represents:
a. pressure within arterial vessels during contraction of the
heart
b. pressure exerted on the chambers of the heart while it is
relaxed c. pressure within the arterial vessels while heart is
relaxed
d. pressure exerted on the chambers of the heart during a
contraction: the pressure within arterial vessels during
contraction of the heart
,3. A(n) CM may be described as one that does not
dissociate into charged particles in a solution.: nonionic
Ionic contrast materials are salts that form independent particles
in aqueous solu- tions. Nonionic contrast materials don't dissociate
into charged particles (ions) when placed in solution.
4. Proper immobilization during a CT procedure may involve
the use of:
1. soft, hook-and-loop (Velcro) immobilization straps
2. adhesive medical tape
3. good pt communication: 1 and 3 only
5. The normal range of GFR for men is:
a. 50 +/- 14 mL/min/m^2 b. 60 +/- 10 mL/min/m^2 c. 70 +/- 14
mL/min/m^2
d. 80 +/- 10 mL/min/m^2: 70 +/- 14 mL/min/m^2
Normal GFR for women is: 60 +/- 10 mL/min/m^2
6. Risk factors for contrast-induced nephrotoxicity (CIN)
include:
1. diabetes
2. advanced age
3. hematuria: 1 and 2 only
,Risk factors for CIN include preexisting compromise of renal
function, dehydration, diabetes, myeloma, advanced age, and
cardiovascular disease.
7. The reduction in number of infectious organisms w/o a
complete elimination is termed:
a. medical asepsis b. sterilization
c. surgical asepsis
d. immunization: medical asepsis
accomplished through the use of soap, water, and many other
types of disinfectant materials
8. Which of the following is preferred range for pt heart rate for
optimal cardiac studies?
a. 65-75 bpm b. 75-85 bpm c. 85-95 bpm
d. greater than 100 bpm: 65-75 bpm
pts with slower heart rates exhibit longer diastolic phases, which
yield higher-quality cardiac CT exams. The preferred heart rate for
optimal imaging on most MDCT systems is 65 bpm. Newer
systems at the 64-slice level and beyond are capable
of acquiring adequate cardiac CT images at higher heart rates.
9. Urticaria is another term for:: hives
, 10. Which of the following type(s) of oral CM could cause
peritonitis if leakage from the digestive tract occurs from
perforation?
a. iopamidol (Gastrografin)
b. barium sulfate
c. diatrizoate (Hypaque)
d. effervescent granules: barium sulfate
barium sulfate is not water soluble and is not easily absorbed by
the body. If it leaks out of the digestive tract because of
perforation, this agent may cause peritonitis
11. Which of the following is not an advantage of an
automatic power injector over the manual bolus method of IV
contrast agent administration?
a. uniform contrast enhancement throughout the exam b.
consistent contrast agent admin for all pts.
c. decreased risk of CIN
d. shorter injection times: decreased risk of CIN
12. Which of the following is/are severe adverse reactions to
iodinated IV
contrast media?
1. anaphylaxis
