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122 Exam 3 Lower GI
Terms in this set (37)
What is the longest segment of the small intestine?
The terms large intestine and colon are synonymous. TRUE OR FALSE
Pouches or sacculations found along the mucosal wall of the large intestine are termed
Which abdominal quadrant would the sigmoid colon be located primarily?
The transverse colon is a(n) _______ structure.
Which region(s) of the large intestine would be barium filled during a double-contrast BE with the patient lying prone?
transverse and sigmoid colon
Which regions of the large intestine would be barium filled during a double- contrast BE with patient lying supine?
Ascending colon and descending colon
regional enteritis is also known as
Methylcellulose is introduced into the small intestine during enteroclysis to ______.
dilate the loops of the small intestine
intussusception is most common in
Children younger than 2 years of age
The most common type of colon cancer is
Patients with an allergy to latex should be exposed only to natural latex gloves and enema tips. TRUE OR FALSE
What is the recommended kV range when a water-soluble contrast agent is used?
The IV pole/enema bag is no farther than _____ above the table for the beginning of a barium enema procedure.
Which aspect of the large intestine is best demonstrated with the RAO projection?
right colic flexure, ascending colon, sigmoid colon
Which of the following projections will best demonstrate the rectum during an air-contrast barium enema?
What type of CR angle is required for the AP axial "butterfly" projection?
30-40 degrees cephalic
What is hematochezia?
bright red blood in stool
Where does the CR enter on the 1st film of a small bowel series?
2 inches above the crest
How many cups of barium does the patient drink for a small bowel series only?
2 cups (16 ounces)
Name 4 contraindications for the use of cathartics prior to a BE.
Gross bleeding, diarrhea, obstruction, inflammatory condition
What position is the patient placed in for enema tip insertion?
Where does the CR enter for the LAO position for the BE?
1-2 inches above crest and 1 inch right to MSP
What is the range of rotation for performing the oblique positions for a BE?
What position should the patient be positioned in to demonstrate an open hepatic flexure
What is the range of CR angulation and direction for the PA axial projection for the rectosigmoid area?
30-40 degrees caudal
A double-contrast study of the lower GI tract allows better visualization of what?
What is the name of the portion of the colon located between the cecum and hepatic flexure?
What specific part of the colon is located between the right and left colic flexures?
Which flexure is located between the transverse colon and descending colon?
Left colic flexure
What portion of the large intestine is located below the ascending colon, is a blind pouch, and opens into the appendix?
The taenia coli gather the colon into pouches. What is the name of the pouches?
Of the three discussed in class, what is one difference between the small and large intestines?
Internal diameter, haustra, location
Which part of the small intestine gives a feathery appearance?
What is the little opening called between the small intestine and the large intestine?
When is the small bowel series complete?
When barium reaches cecum
What does volvulus mean?
Twisting of colon
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