Chapter 11 Quiz

Question 1

What is the normal range of creatinine levels of adults?

0.5ng/dL to 1.0ng/dL
0.8ng/dL to 1.5ng/dL
5ng/dL to 10ng/dL
7ng/dL to 20ng/dL

Answer 1

0.8ng/dL to 1.5ng/dL

Question 2

Prophylactic therapy to help prevent allergic reaction to contrast media typically includes which types of drugs?

-analgesics and antihistamines
-analgesics and corticosteroids
-antihistamines and corticosteroids
-NSAIDS and corticosteroids

Answer 2

antihistamines and corticosteroids

Question 3

The hepatic arterial phase of contrast enhancement is defined as the ______.

-first 20 seconds of the scan after injection
-20 to 40 after admin of the contrast media
-40 to 60 after admin of the contrast media
-60 to 90 seconds of the scan after injection

Answer 3

20 to 40 after admin of the contrast media

Question 4

Which phase of enhancement is classified as a difference of 10 to 30 HU between the abdominal aorta and the inferior vena cava?

bolus phase
equilibrium phase
nonequilibrium phase
portal venous phase

Answer 4

nonequilibrium phase

Question 5

The liver receives its blood supply from the _________.

hepatic artery
hepatic artery and portal vein
inferior vena cava and portal vein
portal vien

Answer 5

hepatic artery and portal vein

Question 6

The onset of hypotension following the admin of contrast medica is classified as what type of reaction?

mild
moderate
severe
none of the above

Answer 6

severe

Question 7

There are several different types of contrast media, and the characteristics of these types maybe described using all the following terms EXCEPT _______.

low osmolar
nonionic
hyperionic
ios-osmolar

Answer 7

ios-osmolar

Question 8

Viscosity of contrast media is kept to a minimum by _______.

-warming the contrast to body temp
-shaking the contrast media before using
-keeping the contrast media cold
-none of the above

Answer 8

warming the contrast to body temp

Question 9

Oral contrast media can cause symptoms/problems that include which of the following?

cramping
diarrhea
flatulence
all of the above

Question 10

An extensive history should be taken on each patient to aid in patient selection and in preparation for CT imaging. Which of the laboratory results is most important to include in the history?

BUN
CBC
creatinine
BGL

Question 11

In CT, the images are comprised of a range of numbers or CT numbers called the ____.

window level
window width
CT position
cross-field

Answer 11

window width

Question 12

What common parameter is used to measure patient dose and minimize radiation exposure that in partnership with a medical physicist is usually reviewed at least annually for the scanner?

CT number
CT window level
CT window width
CT number