CET Endoscopic Equipment & Instrumentation

Question 1

Which component is essential for illuminating the interior during an endoscopy?

Accepted Answer

Light source

Answer

The light source is an absolutely essential component for illuminating the interior during an endoscopy. It connects to the endoscope's light guide cable, providing the intense, focused light necessary for the physician to clearly visualize the internal organs and structures on the monitor. Without a functional light source, the procedure cannot be performed effectively.

Question 2

What function does the biopsy channel serve in an endoscope?

Accepted Answer

To collect tissue samples

Answer

The biopsy channel is a dedicated working channel within the endoscope's insertion tube. Its primary function is to allow the passage of various endoscopic accessories, most notably biopsy forceps, to collect tissue samples from suspicious areas. These samples are then sent for pathological examination to aid in diagnosis.

Question 3

Which of the following is used to visualize internal anatomy during endoscopy?

Accepted Answer

Video processor

Answer

The video processor is a critical piece of equipment that receives the optical signal from the endoscope's camera. It processes this signal and converts it into a real-time, high-resolution image displayed on a monitor. This allows the physician to visualize the internal anatomy and navigate the endoscope throughout the procedure.

Question 4

Which device helps maintain a clear field by removing fluids during the procedure?

Accepted Answer

Suction valve

Answer

The suction valve, located on the endoscope's control body, is crucial for maintaining a clear field of view during an endoscopy. When activated, it draws fluids, mucus, blood, or debris through the working channel, preventing obstructions to visualization. This ensures the physician can clearly see the internal structures and perform necessary interventions.

Question 5

Why is the water/air valve important during endoscopy?

Accepted Answer

Clears lens and inflates lumen

Answer

The water/air valve on the endoscope's control body serves two vital functions. Pressing it allows the physician to spray water onto the distal lens to clear any obstructions, ensuring a clear view. Releasing it allows for air insufflation, which gently inflates the lumen of the organ, providing better visualization of the mucosal lining and facilitating scope advancement.

(CET) Certified Endoscopy Technician Practice Test

(CET) Certified Endoscopy Technician Practice Test

CET Endoscopic Equipment & Instrumentation