Lower Endoscopy Procedures Flashcards
6 cards from real CGRN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Lower Endoscopy Procedures flashcards as text
What is the recommended minimum withdrawal time during a screening colonoscopy?
Answer: 6 minutes
A minimum 6-minute withdrawal time is recommended to maximize adenoma detection rates.
During colonoscopy, a 1.5 cm sessile polyp is encountered. Which removal technique is most appropriate?
Answer: Endoscopic mucosal resection (EMR)
For sessile polyps 10-20 mm, EMR using submucosal injection and snare is preferred.
Which bowel preparation outcome is adequate according to the Boston Bowel Preparation Scale?
Answer: Total score of 6 or higher with each segment at least 2
An adequate preparation requires a total score ≥6 with each of three segments scoring at least 2.
What is the primary risk associated with electrocautery polypectomy in the right colon compared to the left?
Answer: Higher perforation rate due to thinner wall
The right colon has a thinner wall, increasing perforation risk with electrocautery.
A patient taking clopidogrel for a recent coronary stent needs elective colonoscopy with polypectomy. How should the medication be managed?
Answer: Discontinue 7 days before
Guidelines recommend discontinuing clopidogrel 5-7 days before high-risk endoscopic procedures, coordinated with the cardiologist.
What anatomic landmark confirms cecal intubation during colonoscopy?
Answer: Appendiceal orifice and triradiate fold
Cecal intubation is confirmed by identifying the appendiceal orifice and triradiate fold.