1. Which of the following instruments is commonly used

during an upper endoscopy?

a) Sigmoidoscope

b) Colonoscope

c) Gastroscope

d) Bronchoscope

Answer: c) Gastroscope

Rationale: A gastroscope is specifically designed for

examining the upper gastrointestinal tract, including the

esophagus, stomach, and duodenum.

2. What is the purpose of insufflation during an endoscopic

procedure?

a) To prevent infection

b) To aid in visualization

c) To stimulate peristalsis

d) To promote mucosal healing

Answer: b) To aid in visualization

Rationale: Insufflation involves introducing air or carbon

dioxide into the gastrointestinal tract to expand it, allowing

for better visualization of the mucosal lining during the

endoscopic procedure.

3. Which of the following conditions can be diagnosed

using an endoscopic ultrasound (EUS)?

a) Liver cirrhosis

b) Pancreatic cancer

c) Gastric ulcer