CBET Ultimate 3

Question 1

When testing ground wire resistance on patient care equipment, AAMI ES1 specifies the resistance should not exceed:

Accepted Answer

0.1 ohm

Answer

0.5 ohm

Answer

1.0 ohm

Answer

5.0 ohm

Question 2

A pulse oximeter reads SpO2 at 85% but the patient appears clinically stable. What artifact is MOST likely causing a falsely low reading?

Accepted Answer

Motion artifact or poor perfusion at the probe site

Answer

Hyperbilirubinemia

Answer

Hyperoxia

Answer

High ambient oxygen concentration

Question 3

Which sterilization method is MOST appropriate for heat-sensitive flexible endoscopes?

Accepted Answer

Ethylene oxide (EtO) gas sterilization

Answer

Steam autoclave at 134°C

Answer

Dry heat oven

Answer

Radiation sterilization

Question 4

In an infusion pump, what is the primary purpose of the air-in-line detector?

Accepted Answer

To detect air bubbles that could cause air embolism

Answer

To measure flow rate accuracy

Answer

To prevent free-flow drug delivery

Answer

To monitor reservoir volume

Question 5

What is the function of a ballast in fluorescent surgical lighting?

Accepted Answer

To limit current and stabilize the arc discharge in the lamp

Answer

To control light color temperature

Answer

To convert AC to DC power

Answer

To focus the light beam

Question 6

A hospital-grade receptacle has which distinguishing feature compared to standard commercial receptacles?

Accepted Answer

Green dot marking and heavier-duty contacts with greater retention force

Answer

Higher voltage rating

Answer

GFCI protection built-in

Answer

Isolated ground on every outlet

Question 7

When inspecting a surgical electrosurgical unit (ESU), which parameter is tested to verify patient safety?

Accepted Answer

Return electrode contact quality monitoring (RECM) threshold

Answer

Output frequency accuracy

Answer

Cutting waveform duty cycle only

Answer

RF output power linearity