Sigmoidoscopy, colonoscopy, and laboratory evaluation of GI symptoms Questions with Correct answers
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Course
Urinary elimination
Institution
Urinary Elimination
When would xrays commonly be ordered for GI evaluation? What would be some contraindications for use? Correct Answer-o View radiopaque objects within GI tract
o Use contrast dye to visualize mass lesions or structural abnormalities
o Fluoroscopy monitors progress of contrast
o Contraindica...
Sigmoidoscopy, colonoscopy, and laboratory
evaluation of GI symptoms Questions with Correct
answers
When would xrays commonly be ordered for GI evaluation? What
would be some contraindications for use? Correct Answer-o View
radiopaque objects within GI tract
o Use contrast dye to visualize mass lesions or structural abnormalities
o Fluoroscopy monitors progress of contrast
o Contraindication:
♣ Suspected perforation (water soluble dye better than barium - in terms
of allergies etc)
When is an abdominal ultrasound commonly used? Correct Answer-•
Easy, cheap, and non-invasive
• No considerations
• Common uses:
o Gallbladder
o Liver
o Kidneys
o Renal artery stenosis
, What is an endoscopy and the positives of using this diagnostic
technique? Correct Answer-• Camera to look inside of GI tract
• Ability to combine diagnosis AND therapy in some instances!
• Evaluate blood flow and imaging of lesion
What would you do for preparation for an endoscopy? Correct Answer-o
Hold blood thinners
o Stop iron and fiber supplements prior
o No solid foods at least 6-8 hrs and no liquids 4 hrs prior
o Colon prep - gallon of nasty tasting substance.
Contraindications for endoscopy? Correct Answer-Shock, MI,
peritonitis, perforation, fulminant colitis
What are the 3 types of endoscopy? Correct Answer-• Colonoscopy:
bottom up and goes all the way to the small bowel
• Gastroscopy: top down and stops at the small intestine
• Sigmoidscopy: cheaper but misses a lot of the colon. Cheaper and can
be done in the office. Goes just through the descending colon.
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