Certified Gastroenterology RN Endoscopic Procedures and Equipment Questions and Answers

Question 1

During the reprocessing of a flexible colonoscope, which of the following steps is MOST critical to perform immediately after pre-cleaning and before manual submersion cleaning?

Accepted Answer

Performing a pressure leak test.

Answer

Soaking the scope in a high-level disinfectant.

Answer

Drying all channels with compressed air.

Answer

Manually brushing the biopsy channel.

Question 2

A patient is undergoing an Endoscopic Retrograde Cholangiopancreatography (ERCP). The gastroenterology nurse knows that the MOST common complication associated with this procedure is:

Accepted Answer

Pancreatitis

Answer

Cholangitis

Answer

Hemorrhage

Answer

Perforation

Question 3

During a colonoscopy with polypectomy using a monopolar snare, the nurse correctly places the dispersive electrode (grounding pad) on the patient. Which site represents the MOST appropriate placement?

Accepted Answer

On the patient's thigh, ensuring a large, well-vascularized muscle mass.

Answer

On the patient's scapula, avoiding the bony prominence.

Answer

On the patient's upper arm, near an implanted cardiac defibrillator.

Answer

Over an old, well-healed abdominal surgical scar.

Question 4

Argon Plasma Coagulation (APC) is a non-contact thermal modality used for hemostasis in the GI tract. What is the primary mechanism of action for APC?

Accepted Answer

It delivers a high-frequency electrical current to tissue via ionized argon gas.

Answer

It deploys a mechanical clip to ligate the bleeding vessel.

Answer

It uses a focused laser beam to vaporize superficial tissue.

Answer

It injects a sclerosing agent to harden the vessel walls.

Question 5

A 50-year-old patient presents with chronic, occult iron deficiency anemia. An EGD and a full colonoscopy were both performed and revealed no source of bleeding. Which procedure should the nurse anticipate as the MOST appropriate next diagnostic step?

Accepted Answer

Video Capsule Endoscopy (VCE)

Answer

Endoscopic Ultrasound (EUS)

Answer

Flexible Sigmoidoscopy

Answer

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Question 6

Duodenoscopes have been linked to a higher risk of transmitting multidrug-resistant organisms compared to standard gastroscopes or colonoscopes. This increased risk is primarily attributed to which specific design feature?

Accepted Answer

The complex, fixed elevator mechanism at the distal tip.

Answer

The larger diameter of the suction channel.

Answer

The longer overall length of the insertion tube.

Answer

The increased flexibility of the bending section.