CBET Surgical Equipment Technology 4

Question 1

A surgical laser system shows reduced beam power output despite the laser being fully charged. What is the most likely cause?

Accepted Answer

Damaged fiber optic delivery cable

Answer

Damaged or bent fiber optic delivery cables are a common cause of reduced laser power output due to increased transmission losses.

Question 2

Which grounding method is used in electrosurgical units to prevent alternate-site burns?

Accepted Answer

Isolated patient return electrode monitoring

Answer

Isolated patient return electrode monitoring (contact quality monitoring) detects poor contact and shuts off the ESU before an alternate-site burn can occur.

Question 3

During a robotic-assisted surgery, a robotic arm instrument fails to respond to surgeon commands. The FIRST step a BMET should take is:

Accepted Answer

Check the instrument-arm communication cable connections

Answer

Verifying cable connections is the first logical troubleshooting step before escalating to more invasive actions like rebooting or replacing components.

Question 4

What is the purpose of the smoke evacuator in a surgical laser procedure?

Accepted Answer

Remove laser plume containing viable cellular material and toxic byproducts

Answer

Laser plume can contain viable bacteria, viral particles, and toxic chemicals, making smoke evacuation an essential safety measure.

Question 5

A C-arm fluoroscopy unit drifts out of position during a procedure. Which component is most likely responsible?

Accepted Answer

Brake or locking mechanism on the C-arm carriage

Answer

A faulty brake or locking mechanism allows unintended movement of the C-arm, causing positional drift during procedures.

CBET - Certified Biomedical Equipment Technician Practice Test

CBET - Certified Biomedical Equipment Technician Practice Test

CBET Surgical Equipment Technology 4