CABT Medical Equipment Operations 2

Question 1

Which parameter is most critical to verify before connecting a patient to a mechanical ventilator?

Accepted Answer

Tidal volume setting

Answer

Tidal volume must be verified before use to ensure the patient receives the appropriate breath size and avoid barotrauma or hypoventilation.

Question 2

An infusion pump alarms 'upstream occlusion.' What is the most likely cause?

Accepted Answer

Kinked IV tubing above the pump

Answer

An upstream occlusion alarm typically indicates a blockage or kink in the tubing between the fluid bag and the pump, preventing fluid from reaching the pump.

Question 3

What does the term 'duty cycle' refer to in electrosurgical units (ESU)?

Accepted Answer

The ratio of on-time to total period of the RF waveform

Answer

Duty cycle is the ratio of active (on) time to total cycle time in the RF waveform, which determines whether the ESU operates in cut or coagulation mode.

Question 4

A pulse oximeter reads SpO2 of 98% but the patient appears cyanotic. Which condition could cause this discrepancy?

Accepted Answer

Carbon monoxide poisoning

Answer

Carbon monoxide binds hemoglobin similarly to oxygen, causing standard pulse oximeters to read falsely high SpO2 even when actual oxygen saturation is dangerously low.

Question 5

Which international standard specifically governs the safety requirements for medical electrical equipment?

Accepted Answer

IEC 60601-1

Answer

IEC 60601-1 is the primary international standard establishing general safety and essential performance requirements for medical electrical equipment.

(CABT) Certified Associate in Biomedical Technology Practice Test

(CABT) Certified Associate in Biomedical Technology Practice Test

CABT Medical Equipment Operations 2