Mosby's CT Registry Review 3rd Edition:
Practice Exam #1 2026 Questions and
Answers
An average range for activated partial thromboplastin time (PTT) is: - Correct
answer-25-35 seconds.
PTT is a lab measure of blood coagulation.
What is the correct angle of insertion for placing a butterfly needle into a vein for
intravenous administration of a contrast agent? - Correct answer-15 degrees
It's also important that the vein be properly stabilized and needle be inserted gently
with bevel facing upward.
A total volume of 125 mL of an iodinated contrast agent is administered
intravenously via automatic injector in 50 seconds. The flow rate for this injection
is: - Correct answer-2.5 mL/sec
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Flow rate may be calculated by dividing total contrast volume by time of injection.
The condition whereby the pt suffers from a low concentration of oxygen in the
blood is called: - Correct answer-hypoxemia
While one is obtaining a thorough history from a pt before the intravenous
injection of an iodinated contrast material, which of the following topics should be
included?
1. any prior allergic reactions to CM
2. presence of HIV or hepatitis infection
3. hx of asthma - Correct answer-1 and 3 only.
Which of the following factors may affect a pt's calculated GFR?
1. age
2. sex
3. race - Correct answer-1, 2, and 3
Which of the following IV contrast agent administration methods provides the
greatest overall plasma iodine concentration?
a. drip infusion
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,b. bolus technique
c. biphasic technique
d. CT portography - Correct answer-bolus technique
A bolus admin. of contrast agent requires entire vol of material to be injected over
the shortest possible time. Bolus admin provides the maximum plasma iodine
concentration and subsequent tissue enhancement.
A patient in shock may exhibit which of the following sx?
1. tachycardia
2. rapid, shallow breathing
3. cyanosis - Correct answer-1, 2, and 3
Other sx include pallor, hypotension, and cold, clammy skin
The drug SOLU-CORTEF may be classified as which of the following?
a. anticholinergic
b. bronchodilator
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, c. antihistamine
d. corticosteroid - Correct answer-corticosteroid
SOLU-CORTEF is a brand name for hydrocortisone. Corticosteroids may be used
during tx of anaphylactoid reactions to iodinated CM.
Which of the following is a nonionic contrast material?
a. iodamide
b. iothalamate
c. iohexol
d. diatrizoate - Correct answer-iohexol
Nonionic CM include iopamidol (Isovue), iohexol (Omnipaque), and iopromide
(Ultravist).
What term is used to describe a pt who is having difficulty breathing? - Correct
answer-dyspnea
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Practice Exam #1 2026 Questions and
Answers
An average range for activated partial thromboplastin time (PTT) is: - Correct
answer-25-35 seconds.
PTT is a lab measure of blood coagulation.
What is the correct angle of insertion for placing a butterfly needle into a vein for
intravenous administration of a contrast agent? - Correct answer-15 degrees
It's also important that the vein be properly stabilized and needle be inserted gently
with bevel facing upward.
A total volume of 125 mL of an iodinated contrast agent is administered
intravenously via automatic injector in 50 seconds. The flow rate for this injection
is: - Correct answer-2.5 mL/sec
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Flow rate may be calculated by dividing total contrast volume by time of injection.
The condition whereby the pt suffers from a low concentration of oxygen in the
blood is called: - Correct answer-hypoxemia
While one is obtaining a thorough history from a pt before the intravenous
injection of an iodinated contrast material, which of the following topics should be
included?
1. any prior allergic reactions to CM
2. presence of HIV or hepatitis infection
3. hx of asthma - Correct answer-1 and 3 only.
Which of the following factors may affect a pt's calculated GFR?
1. age
2. sex
3. race - Correct answer-1, 2, and 3
Which of the following IV contrast agent administration methods provides the
greatest overall plasma iodine concentration?
a. drip infusion
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,b. bolus technique
c. biphasic technique
d. CT portography - Correct answer-bolus technique
A bolus admin. of contrast agent requires entire vol of material to be injected over
the shortest possible time. Bolus admin provides the maximum plasma iodine
concentration and subsequent tissue enhancement.
A patient in shock may exhibit which of the following sx?
1. tachycardia
2. rapid, shallow breathing
3. cyanosis - Correct answer-1, 2, and 3
Other sx include pallor, hypotension, and cold, clammy skin
The drug SOLU-CORTEF may be classified as which of the following?
a. anticholinergic
b. bronchodilator
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, c. antihistamine
d. corticosteroid - Correct answer-corticosteroid
SOLU-CORTEF is a brand name for hydrocortisone. Corticosteroids may be used
during tx of anaphylactoid reactions to iodinated CM.
Which of the following is a nonionic contrast material?
a. iodamide
b. iothalamate
c. iohexol
d. diatrizoate - Correct answer-iohexol
Nonionic CM include iopamidol (Isovue), iohexol (Omnipaque), and iopromide
(Ultravist).
What term is used to describe a pt who is having difficulty breathing? - Correct
answer-dyspnea
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
