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

Battery backup level

Answer

Display brightness

Answer

Alarm speaker volume

Question 2

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

Accepted Answer

Kinked IV tubing above the pump

Answer

Depleted battery

Answer

Air in the IV line

Answer

Incorrect drug concentration entered

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

The maximum wattage output the unit can sustain

Answer

The frequency of the cutting waveform

Answer

The number of surgeries performed between servicing

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

Hyperoxia

Answer

Peripheral vasoconstriction

Answer

Hypothermia

Question 5

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

Accepted Answer

IEC 60601-1

Answer

ISO 9001

Answer

ANSI Z136.1

Answer

NFPA 99

Question 6

During a defibrillator self-test, the energy readback shows 195 J when 200 J was selected. What is the acceptable tolerance per most standards?

Accepted Answer

±15%

Answer

±1%

Answer

±5%

Answer

±25%

Question 7

A hemodialysis machine's conductivity alarm activates during treatment. What is the immediate corrective action?

Accepted Answer

Take the patient off bypass and return blood

Answer

Increase blood flow rate

Answer

Recalibrate the conductivity probe

Answer

Increase ultrafiltration rate