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RAD135 Week 3 Exam

RAD135 Week 3 Exam small bowel and large intestines fluoro

QuestionAnswer
Inflation of the retention balloon for a barium enema should be inflated by the: Radiologist using fluoroscopy.
What is the length of the large intestine? 5 feet
The opening between the small intestine and the large intestine is called the: Ileocecal valve
One of the most important technical considerations in gastrointestinal radiography is: Elimination of motion.
The entire colon is best demonstrated in which projection? AP/PA
Which part of the large intestine is more anterior when in the AP/PA position? Transverse
Which projection of the colon best demonstrates the right colic flexure? PA Oblique, RAO AP Oblique, LPO
Where is the IR centered for all decubitus projections of the large intestine? Iliac crests
The ascending portion of the colon joins the transverse colon at the: Right colic (hepatic) flexure
The vermiform appendix of the colon is attached to the: Cecum
The degree of body rotation for the PA Oblique projection (RAO or LAO) of the large intestine is _________ degrees. 35 to 45
Which two positions will demonstrate the right colic flexure? RAO LPO
The main functions of the small bowel are _______ of food. 1. Digestion 2. Absorption 3. Storage 1 and 2
The large intestine is made up of a series of pouches called the: Haustra
Which projection of the colon best demonstrates the posterior portions of the colon? Lateral, ventral decubitus
The mucosa of the small intestine contains a series of fingerlike projections called: Villi
Which two gases are commonly used as a contrast agent in double-contrast enema studies? Air and CO2
The widest portion of the small bowel is the: Duodenum
How far above the anus is the enema bag placed during a barium enema? 18 to 24 inches
The respiration phase for ALL projections of the large intestine is: Suspended respiration
Which projection of the colon will best demonstrate the medial aspect of the ascending colon and the lateral aspect of the descending colon when the colon is inflated with air? AP, right lateral decubitus
Where is the IR centered for delayed images of the small intestines? Level of the iliac crests
Which projection of the colon best demonstrates the lateral aspect of the ascending colon and the medial aspect of the descending colon, when the colon is inflated with air? AP, left lateral decubitus
What is the respiration phase for ALL radiographic exposures of the stomach and small intestines? Suspended at the end of expiration
Where is the IR centered for images of the small intestine that are taken within 30 minutes of drinking the barium? Level of L2
In which position should the patient be placed to insert the enema tip for a barium enema? Sims
Which examination requires the use of time markers on the images? Small intestine
The most distal portion of the small intestine is the: Ileum
What are the main 2 functions of the large intestine? Reabsorption of fluids Elimination of waste products
Which projections will clearly demonstrate the descending colon? 1. PA Oblique, LAO 2. AP Oblique, RPO 3. Left Lateral 1 and 2
Prolapse of a portion of the bowel into the lumen of an adjacent part is termed: Intussusception
The most common contrast medium used for radiologic examinations of the gastrointestinal tract is: Barium sulfate
What is the central ray angulation for the PA axial projection of the large intestine? 30 to 40 degrees caudad
What is the central ray angulation for the AP axial projection of the large intestines? 30 to 40 degrees cephalad
Created by: REGJUR4408
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