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Lower Endoscopy Procedures Flashcards

7 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 7 Lower Endoscopy Procedures flashcards as text

  1. On the Boston Bowel Preparation Scale (BBPS), which result is generally considered an adequate preparation?

    Answer: Total score of 6 or more with each segment scoring at least 2

    The BBPS scores three segments 0-3, and adequacy is typically defined as a total of 6 or more with no segment below 2.

  2. Which endoscopic landmarks confirm cecal intubation during colonoscopy?

    Answer: Appendiceal orifice and ileocecal valve

    Cecal intubation is documented by seeing the appendiceal orifice and ileocecal valve, ideally with photos.

  3. During colonoscopy the patient becomes diaphoretic and bradycardic with a heart rate of 42 while the scope is being advanced through a sigmoid loop. What should the nurse do first?

    Answer: Tell the endoscopist so the loop can be reduced or the scope pulled back

    Stretching the mesentery by looping can trigger a vasovagal reaction, so the first step is relieving the loop.

  4. What is the main advantage of CO2 insufflation over room air during colonoscopy?

    Answer: Less post-procedure abdominal pain and bloating because CO2 is absorbed quickly

    CO2 is absorbed through the bowel wall much faster than air, which reduces post-procedure distension and discomfort.

  5. A patient calls 10 days after a hot snare polypectomy of a 2 cm polyp to report passing bright red blood per rectum. What is the best interpretation?

    Answer: Possible delayed post-polypectomy bleeding that needs prompt evaluation

    Delayed bleeding can happen up to about 2-4 weeks after polypectomy, when the eschar sloughs, and needs urgent assessment.

  6. Which bowel prep agent carries the highest risk of acute phosphate nephropathy, particularly in older patients and those taking ACE inhibitors?

    Answer: Oral sodium phosphate

    Oral sodium phosphate can cause acute phosphate nephropathy, so it is avoided in patients with renal risk factors.

  7. Why is a sterile carbon-particle suspension (such as SPOT) injected next to a lesion during colonoscopy?

    Answer: To mark the site for later surgical or endoscopic localization

    Endoscopic tattooing permanently marks a lesion so a surgeon or endoscopist can find it later.

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  1. abcgn.org — Fees, passing score, renewal, retake fee, retake policy, score release, eligibility, exam format, test delivery, score validity · verified Oct 2026