RAD-108 • Chapter 15 Quiz

The expanded portion of the terminal esophagus is called the:

cardiac antrum

The widest portion of the small bowel is the:

duodenum

The general term used to describe the surgical procedure of forming an artificial opening to the intestine for the passage of fecal material is:

enterostomy

Food & fluid should be withheld for how many hours before a stomach examination?

8 hours

What is the central ray angulation for the PA axial projection of the large intestine? a. 30º-40º caudad b. 10º-20º caudad c. 10º-20º cephalad d. 30º-40º cephalad

a. 30º-40º caudad

What is the average degree of body rotation for an AP oblique projection of the stomach & duodenum? a. 45º b. 50º c. 60º d. 55º

a. 45º

All of the following are the essential projections for an esophagus series, except: a. AP axial oblique b. lateral c. AP d. PA oblique

a. AP axial oblique

Which structure is air-filled on double-contrast images of the stomach obtained in the PA oblique projection (RAO position)?

fundus

The opening between the small intestine & the large intestine is called the:

ileocecal valve

Failure of bowel peristalsis:

ileus

The muscle controlling the opening between the stomach & the duodenum is termed the:

pyloric sphincter

How far above the anus is the enema bag placed during a barium enema?

18 in.-24 in.

How long does it take barium to go through the alimentary canal & reach the rectum?

24 hours

The small intestine is divided into how many distinct portions?

3

How long is the alimentary canal?

30 feet

In which position should the patient be placed to insert the enema tip for a barium enema?

Sims

The main functions of the small bowel are __________ of food. I. digestion II. absorption III. storage a. I & II b. I & III c. II & III d. I, II, & III

a. I & II

The patient "prep" for a morning stomach examination is food & fluids are withheld: a. after midnight b. after the evening meal c. for 12 hours d. for 24 hours

a. after midnight

For which type of body habitus is the stomach nearly vertical?

asthenic

The degree of body rotation for an AP oblique projection of the large intestine is: a. 20º-30º b. 35º-45º c. 15º-30º d. 10º-20º

b. 35º-45º

At which level is the IR centered for a PA projection of the stomach & duodenum? a. T12/L1 b. L1/L2 c. L2/L3 d. iliac crests

b. L1/L2

The gallbladder functions to: a. produce & secrete bile b. store & concentrate bile c. regulate digestion of fatty acids d. break down toxins in the bloodstream

b. store & concentrate bile

Which two are advantages of using the recumbent position for images of the esophagus? a. easier to swallow barium b. varices better filled with contrast c. proximal portion more completely filled with contrast d. demonstration of hiatal hernia

b. varices better filled with contrast c. proximal portion more completely filled with contrast

Where is the IR centered for images of the small intestine that are taken within 15 minutes (delayed) of drinking the barium? a. level of the iliac crests b. 1 in. above the iliac crests c. 2 in. above the iliac crests d. at the costal margin/L3

c. 2 in. above the iliac crests

At what level is the center of the IR positioned for a lateral projection of the rectosigmoid area? a. 2 in. below the iliac crests b. 2 in. above the iliac crests c. ASIS d. iliac crests

c. ASIS

Which projections will clearly demonstrate the right colic flexure? I. right lateral II. AP oblique (LPO position) III. PA oblique (RAO position) a. I & II b. I & III c. II & III d. I, II, & III

c. II & III

What is the recommended oblique projection & position for the best demonstration of the esophagus? a. AP; RPO b. AP; LPO c. PA; RAO d. PA; LAO

c. PA; RAO

The central ray angulation for the AP axial projection of the large intestine is: a. 10º-20º caudad b. 30º-40º caudad c. 10º-20º cephalad d. 30º-40º cephalad

d. 30º-40º cephalad

The degree of body rotation for the PA oblique projection (RAO or LAO) of the large intestine is __________º. a. 10-15 b. 15-25 c. 20-30 d. 35-45

d. 35-45

What is the degree of body rotation for the PA oblique projection of the esophagus? a. 20º b. 30º c. 20º-30º d. 35º-40º

d. 35º-40º

Which of the following are advantages of using the double-contrast technique for examination of the stomach? I. fewer images are required II. small lesions are not obscured III. the mucosal lining of the stomach can be more clearly visualized a. I & II b. I & III c. II & III d. I, II, & III

d. I, II, & III

Which of the following contrast media are used for examinations of the gastrointestinal tract? I. air II. barium sulfate III. water-soluble iodinated solution a. I & II b. I & III c. II & III d. I, II, & III

d. I, II, & III

At which level is the IR centered for an AP or PA oblique projection of the stomach & duodenum? a. L2/L3 b. iliac crests c. L3/L4 d. L1/L2

d. L1/L2

What is the respiration phase for all radiographic exposures of the stomach & intestines? a. inspiration b. suspended respiration c. slow, shallow breathing d. expiration

d. expiration

For which type of body habitus is the stomach almost horizontal? a. sthenic b. asthenic c. hyposthenic d. hypersthenic

d. hypersthenic

The primary importance of preparation of the intestinal tract for examination of the colon is that: a. it improves retention of contrast b. it decreases the risk of adverse reactions c. it eliminates the need for a scout image d. retained fecal matter can simulate pathology

d. retained fecal matter can simulate pathology

The contraction waves by which the digestive tube moves its contents toward the rectum are called:

peristalsis

The folds of the thick inner lining of the stomach are termed the:

rugae