Certification Examination Practice

Illinois Endoscopy Technician Certification Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

1. The primary function of the colon is to:

• Absorb nutrients from food
• Produce digestive enzymes
• Absorb water and electrolytes
• Store bile

Rationale: The colon’s main role is to absorb water and electrolytes,

forming solid stool.

• Which of the following instruments is most commonly used for upper

GI endoscopy?

• Colonoscope 1 / 4

• Esophagogastroduodenoscope (EGD)
• Sigmoidoscope
• Bronchoscope

Rationale: An EGD is specifically designed for examining the

esophagus, stomach, and duodenum.

3. A patient scheduled for a colonoscopy should:

• Take a solid meal before the procedure
• Follow bowel preparation instructions
• Avoid fasting
• Increase fiber intake the night before

Rationale: Proper bowel prep ensures clear visualization during

colonoscopy.

• The liver produces which of the following for digestion?
• Insulin
• Bile
• Amylase
• Pepsin

Rationale: The liver produces bile, which aids in the digestion and

absorption of fats.

• Which of the following is a common complication of endoscopy?
• Chronic kidney disease
• Perforation
• Hypertension 2 / 4

• Diabetes

Rationale: Perforation, though rare, is a significant risk during

endoscopic procedures.

6. The primary purpose of suction during endoscopy is to:

• Administer medications
• Remove fluids and secretions
• Inflate the bowel
• Monitor blood pressure

Rationale: Suction helps maintain a clear visual field by removing

fluids.

• Which of the following describes the correct patient position for a

colonoscopy?

• Supine
• Left lateral decubitus
• Prone
• Trendelenburg

Rationale: The left lateral decubitus position allows easier passage of

the colonoscope.

8. Standard precautions in endoscopy include:

• Only wearing gloves
• Using antibiotics for all patients
• Hand hygiene, gloves, gowns, and masks as needed
• Sterilizing the patient 3 / 4

Rationale: Standard precautions aim to prevent transmission of

infection between patients and staff.

• Which part of the GI tract connects the stomach to the small

intestine?

• Esophagus
• Cecum
• Duodenum
• Rectum

Rationale: The duodenum is the first portion of the small intestine

connecting to the stomach.

• Which of the following is the most effective method to prevent

endoscope-related infection?

• Rinsing with water only
• High-level disinfection or sterilization
• Wiping with a towel
• Soaking in saline

Rationale: High-level disinfection or sterilization kills microorganisms

and prevents cross-contamination.

11. The small intestine primarily absorbs:

• Water
• Nutrients such as carbohydrates, proteins, and fats
• Electrolytes
• / 4