RAD110 Ch18 & 19 Questions

The purpose of using contrast media in gastrointestinal studies is to:

enhance visualization of soft tissues of the alimentary canal

BE administration may differ from cleansing enema administration with respect to:

1. the height of the enema bag

2. the amount of liquid used

3. the size of the catheter

a. 1 only

b. 2 only

c. 1 and 2 only

d. 1, 2, and 3

d. 1, 2, and 3

when administering a cleansing enema, the patient should be placed in what position

sims position

the media used for double contrast studies of colon are

barium sulfate and air

a black tarry substance in the stool is an indication of

bleeding from the upper GI tract

which of the following liquids is not appropriate for patients on a liquid diet in preparation for a colon exam?

a. milk

b. gelatin

c. apple juice

d. tea

a. milk

a semisolid nugget of med that is inserted into the rectum to stimulate peristatlic action in the colon and promote evacuaion of the distal portion of the lower bowel is called

suppository

pocket formations in mucous membranes most commonlu in the colon are termed

diverticula

enlarged veins in the lower esophagus that are often associated with liver disease are called

a. ulcers

b. varices

c. hemorrhoids

d. strictures

b. varicies

when of the following listings is the most reliable predictor of risk of allergic response to contrast media?

a. intradermal skin test

b. seafood allergy

c. allergy history

d. BUN level

c. allergy history

which of the following dataw ill the radiologust need prior to injection of a contrast medium for an excretory urogram?

1. allergy history

2. basline BP

3. BUN and creatinine levels

a. 1 only

b. 1 and 2 only

c. 1 and 3 only

d. 1, 2, and 3

d. 1, 2, and 3

for approx 8 hours following myelography, the patient is

a. placed supine with the head elevated

b. placed prone with the head lower than the feet

c. under NPO orders

d. encouraged to be ambulatory

a. placed supine with head elevated

ERCP stands for

endscopic retrograde cholangiopancreatography

a substantial intravenous dose delivered rapidly is called a

a. drip infusion

b. insufflation

c. bolus

d. macroinjection

c. bolus

the toxicity of a contrast medium on body tissues and organs is related to

1. the chemical configuration of its molecules

2. its iodine concentration and its osmolality

3. its ionization characteristics

4. the dosage administered and the rate of injection

a. 1 only

b. 1 and 2 only

c. 1, 2, and 3 only

d. 1, 2, 3, and 4

d. 1, 2, 3, and 4

the principal lab tests used to evaluate renal function prior to the injection of iodinated contrast media are the BUN and

creatinine

a device to drain bile from the hepatic and common bile ducts to the outside of the body following cholecystectomy is called a

t-tube

an intrathecal injection is a direct injection into the

spinal canal

patients who require priority scheduling for studies that require fasting are:

1. emergencies

2. diabetic patients

3. infants and small children

4. geriatrics patients

a. 1 only

b. 1 and 2 only

c. 1, 2, and 3 only

d. 1, 2, 4, and 4

d. 1, 2, 3, and 4

what drug is sometimes administered to relax the stomacha dn duodenum during a double contrast upper GI series>

glucagon

bowel obstruction is a serious condition that may result from

a. bleeding from the upper GI tract

b. barium impactoin

c. colon perforation

d. allergy to latex enema tips

b. barium impaction

an enlarged rectal vein is called a

a. hiatal hernia

b. hemorrhoid

c. haustrum

d. diverticulum

b. hemorrhoid

contrast media used for exams of the urinary tract and the vascular system are various forms of

a. iodized oil

b. barium sulfate

c. water-soluble iodine compounds

d. gases

c. water-soluble iodine compounds

an ionic iodinated contrast agent is one that

a. does not cause nausea

b. has low osmolality

c. is less toxic than nonionic agents

d. dissociates into charged particles in solution

d. dissociates into charged particles in solution

which of the following sites is commonly selected for lumbar puncture to instill a contrast agent for myelography

a. C6-C7

b. T6-T7

c. T12-L1

D. L3-L4

d. L3-L4