Upper 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 Upper Endoscopy Procedures flashcards as text
What is the significance of the Z-line (squamocolumnar junction) during upper endoscopy?
Answer: The junction between squamous and columnar epithelium — displacement suggests Barrett's esophagus
Proximal displacement of the Z-line above the GEJ suggests Barrett's esophagus requiring biopsy.
During ERCP, what is the purpose of sphincterotomy?
Answer: Cut the sphincter of Oddi to allow access for stone extraction or stent placement
Sphincterotomy uses electrocautery to enlarge the papillary orifice for therapeutic interventions.
What additional capability does EUS provide compared to standard EGD?
Answer: Cross-sectional imaging of GI wall layers and surrounding structures for submucosal lesion evaluation and cancer staging
EUS combines endoscopy with high-frequency ultrasound to visualize individual wall layers and adjacent structures.
What is the rule of three as it applies to esophageal dilation?
Answer: No more than three sequential dilator sizes after encountering resistance
After resistance is first felt, no more than three consecutive dilator sizes should be passed to minimize perforation risk.
What is the nurse's role in PEG tube placement?
Answer: Preparing the insertion site, assisting with pull-through, monitoring for complications, and providing tube care education
The nurse assists with site preparation, facilitates the pull-through technique, monitors for complications, and educates on tube management.
A patient with known varices is undergoing prophylactic band ligation. How does the nurse prepare for potential hemorrhage?
Answer: Ensure large-bore IV access, blood products on standby, balloon tamponade device available, and emergency medications drawn up
Even prophylactic banding carries hemorrhage risk requiring full preparation.