Radiologic Studies of the GI Tract Flashcards Preview

Digestive, Endocrine, and Metabolic Systems > Radiologic Studies of the GI Tract > Flashcards

Flashcards in Radiologic Studies of the GI Tract Deck (23):
1

What can cause small bowel obstruction in a patient post-surgery?

Adhesions

2

Why is there an increased risk of DVT in pregnant patients?

The IVC can be occluded

3

In the lateral decubitus position, check for air _____________.

lateral to the large intestine

4

Calcified gallbladder indicates _____________.

cancer

5

What is a neobladder?

In a patient post-cystectomy (bladder removal), surgeons can create a bladder out of bowel.

6

In the small intestine, the ____________ go all the way through, while in the large intestine the _________ do not .

plicae circulares; haustrations

7

What is emphysematous cholecystitis?

Air in the wall of the gallbladder

8

What might you notice on a CT of someone with acute bowel ischemia?

Blocked vessel (if the CT has contrast), meaning no enhancement

9

Do not give barium to someone with _______________.

- bowel obstruction, because the colon will absorb water and the barium will become concentrated
- bowel perforation, because the colon will leak barium into the peritoneum

10

Barium swallows can reveal _______________.

aspiration

11

The fundus is a ___________ structure.

posterior (so it will be full of air when the patient is prone)

12

Enteroclysis involves _________________.

injecting air and methylcellulose – provides a greater amount of detail than small-bowel follow through, but is more time and labor intensive

13

Describe a good system of approaching films.

(1) Assess patient data: is it the correct patient? When was it taken? Are there past films for comparison?
(2) Assess the technical aspects of the film: in what position is this taken? Is the area of concern in the film? Is it a good quality?
(3) Assess and describe the anatomy: pay attention to soft tissue, alignment, and bones – particularly regarding changes from past films.
(4) Create a differential.

14

What is the 3, 6, 9 rule?

The small intestine should be no larger than 3 cm. The transverse colon should be no larger than 6 cm. And the cecum should be no larger than 9 cm.

15

What disorders can IV contrast mask?

Renal stones, calcifications, and hemorrhage

16

Prior to giving IV contrast, screen _________ in high-risk patients.

creatinine

17

Have a patient __________ if you're taking an x-ray for bowel obstruction.

stand upright

18

A cratered esophagus on barium swallow is indicative of _______________.

Candida infection in the esophagus

19

Hepatocellular carcinoma receives its feeding from _____________ blood.

arterial

20

Gadolinium has ________ risk.

very low

21

What is the best technique for detecting kidney stones?

CT without contrast

22

X-ray plain films are best for detecting _____________.

perforation (shown by free air) and impaction

23

CTs should only be done after _____________.

non-radiation techniques have been used

Decks in Digestive, Endocrine, and Metabolic Systems Class (133):