Mosby CT Exam 3 || with Error-free Solutions.
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
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers d. 1, 2 & 3
A patient's blood pressure is measured as 140/70 mm Hg. The number 140 represents:
a. the pressure within the arterial vessels during contraction of the heart
b. the pressure exerted on the chambers of the heart while it is relaxed
c. the pressure within the arterial vessels while the heart is relaxed
d. the pressure exerted on the chambers of the heart while it is contracted correct answers a. the
pressure within the arterial vessels during contraction of the heart
A(n) ___ contrast material may be described as one that does not dissociate into charged
particles in solution.
a. neutral
b. nonionic
c. osmolar
d. ionic correct answers b. nonionic
Proper immobilization during a CT procedure may involve the use of:
1. Velcro straps
2. adhesive medical tape
3. good patient communication
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers c. 1 & 3 only
The normal range of GFR for men is:
a. 50 ±14 mL/min/m2
b. 60 ±10 mL/min/m2
c. 70 ±14 mL/min/m2
d. 80 ±10 mL/min/m2 correct answers c. 70 ±14 mL/min/m2
Risk factors for contrast induced nephrotoxicity (CIN) include:
1. diabetes 2. advanced age 3. hematuria
a. 1 only
,b. 3 only
c. 1 & 2 only
d. 1, 2 & 3 correct answers c. 1 & 2 only
The reduction in number of infectious organisms without a complete elimination is termed:
a. medical asepsis
b. sterilization
c. surgical asepsis
d. immunization correct answers a. medical asepsis
Which of the following is the preferred range for patient heart rate for optimal cardiac CT
studies?
a. 65-75 bpm
b. 75-85 bpm
c. 85-95 bpm
d. >100 bpm correct answers a. 65-75 bpm
Urticaria is which of the following?
a. severe nausea with associated vomiting
b. urinary tract infection
c. hives
d. bronchospasm correct answers c. hives
Which of the following type(s) 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 correct answers b. barium sulfate
Which of the following 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 examination
b. consistent contrast agent administration for all patients
c. decreased risk of CIN
d. shorter injection times correct answers c. decreased risk of CIN
Which of the following is/are severe adverse reaction(s) to iodinated intravenous contrast?
1. anaphylaxis 2. urticaria. 3. vomiting
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers a. 1 only
Which of the following lab values is the most dependable measure of renal function?
, a. BUN
b. creatinine
c. PT
d. PTT correct answers b. creatinine
Which of the following angiocatheter sizes may be safely used for the automated power injection
of iodinated contrast agents at flow rates higher than 3 mL/sec?
1. 18 gauge. 2. 20 gauge. 3. 22 gauge
a. 1 only
b. 3 only
c. 1 & 2 only
d. 1, 2 & 3 correct answers c. 1 & 2 only
Which of the following portions of the electrocardiogram (ECG) corresponds to the period of
atrial systole?
a. P wave
b. QRS wave
c. alpha wave
d. T wave correct answers a. P wave
Which of the following terms is used to describe the intravenous injection of medication or
contrast agent in one complete dose over a short time?
a. infusion
b. bolus
c. IV drip
d. Infus-A-Port correct answers b. bolus
Used in determining the biologic effect of iodinated contrast media, the term ____________
refers to the number of ions formed when a substance dissociates in solution.
a. solubility
b. osmolality
c. concentration
d. iodination correct answers b. osmolality
The injection rate of an automatic injector is set at 1.5 mL/sec. What is the injection time for a
contrast agent volume of 150 mL?
a. 60 seconds
b. 90 seconds
c. 100 seconds
d. 120 seconds correct answers c. 100 seconds
Which of the following must be included when one is obtaining informed consent for an invasive
procedure?
1. explanation of the examination techniques
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
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers d. 1, 2 & 3
A patient's blood pressure is measured as 140/70 mm Hg. The number 140 represents:
a. the pressure within the arterial vessels during contraction of the heart
b. the pressure exerted on the chambers of the heart while it is relaxed
c. the pressure within the arterial vessels while the heart is relaxed
d. the pressure exerted on the chambers of the heart while it is contracted correct answers a. the
pressure within the arterial vessels during contraction of the heart
A(n) ___ contrast material may be described as one that does not dissociate into charged
particles in solution.
a. neutral
b. nonionic
c. osmolar
d. ionic correct answers b. nonionic
Proper immobilization during a CT procedure may involve the use of:
1. Velcro straps
2. adhesive medical tape
3. good patient communication
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers c. 1 & 3 only
The normal range of GFR for men is:
a. 50 ±14 mL/min/m2
b. 60 ±10 mL/min/m2
c. 70 ±14 mL/min/m2
d. 80 ±10 mL/min/m2 correct answers c. 70 ±14 mL/min/m2
Risk factors for contrast induced nephrotoxicity (CIN) include:
1. diabetes 2. advanced age 3. hematuria
a. 1 only
,b. 3 only
c. 1 & 2 only
d. 1, 2 & 3 correct answers c. 1 & 2 only
The reduction in number of infectious organisms without a complete elimination is termed:
a. medical asepsis
b. sterilization
c. surgical asepsis
d. immunization correct answers a. medical asepsis
Which of the following is the preferred range for patient heart rate for optimal cardiac CT
studies?
a. 65-75 bpm
b. 75-85 bpm
c. 85-95 bpm
d. >100 bpm correct answers a. 65-75 bpm
Urticaria is which of the following?
a. severe nausea with associated vomiting
b. urinary tract infection
c. hives
d. bronchospasm correct answers c. hives
Which of the following type(s) 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 correct answers b. barium sulfate
Which of the following 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 examination
b. consistent contrast agent administration for all patients
c. decreased risk of CIN
d. shorter injection times correct answers c. decreased risk of CIN
Which of the following is/are severe adverse reaction(s) to iodinated intravenous contrast?
1. anaphylaxis 2. urticaria. 3. vomiting
a. 1 only
b. 1 & 2 only
c. 1 & 3 only
d. 1, 2 & 3 correct answers a. 1 only
Which of the following lab values is the most dependable measure of renal function?
, a. BUN
b. creatinine
c. PT
d. PTT correct answers b. creatinine
Which of the following angiocatheter sizes may be safely used for the automated power injection
of iodinated contrast agents at flow rates higher than 3 mL/sec?
1. 18 gauge. 2. 20 gauge. 3. 22 gauge
a. 1 only
b. 3 only
c. 1 & 2 only
d. 1, 2 & 3 correct answers c. 1 & 2 only
Which of the following portions of the electrocardiogram (ECG) corresponds to the period of
atrial systole?
a. P wave
b. QRS wave
c. alpha wave
d. T wave correct answers a. P wave
Which of the following terms is used to describe the intravenous injection of medication or
contrast agent in one complete dose over a short time?
a. infusion
b. bolus
c. IV drip
d. Infus-A-Port correct answers b. bolus
Used in determining the biologic effect of iodinated contrast media, the term ____________
refers to the number of ions formed when a substance dissociates in solution.
a. solubility
b. osmolality
c. concentration
d. iodination correct answers b. osmolality
The injection rate of an automatic injector is set at 1.5 mL/sec. What is the injection time for a
contrast agent volume of 150 mL?
a. 60 seconds
b. 90 seconds
c. 100 seconds
d. 120 seconds correct answers c. 100 seconds
Which of the following must be included when one is obtaining informed consent for an invasive
procedure?
1. explanation of the examination techniques
