DC Safety & Infection Control 2

Question 1

Which current level is considered the threshold for ventricular fibrillation via microshock in a patient with an intracardiac catheter?

Accepted Answer

10 µA

Answer

As little as 10 microamperes (µA) delivered directly to the myocardium can induce ventricular fibrillation via microshock.

Question 2

When applying ECG monitoring electrodes, which action best prevents skin breakdown and artifact in a patient on contact precautions?

Accepted Answer

Don gloves, prepare skin thoroughly, and use single-patient electrodes

Answer

Gloving, proper skin preparation, and dedicated single-patient electrode sets prevent both infection transmission and skin injury.

Question 3

A telemetry transmitter from a patient on droplet precautions must be cleaned. Which disinfectant is most appropriate for most ECG/telemetry equipment?

Accepted Answer

EPA-registered hospital-grade disinfectant wipe per manufacturer instructions

Answer

EPA-registered hospital-grade disinfectant wipes used per manufacturer guidance are the standard for surface-level disinfection of telemetry equipment.

Question 4

A nurse notices a cardiac monitor's power cord has frayed insulation. The correct immediate action is to:

Accepted Answer

Remove the device from service and tag it for biomedical engineering

Answer

Damaged electrical equipment must be immediately removed from service and tagged for biomedical engineering to prevent macroshock injury.

Question 5

Which of the following isolation precaution types would be required for a patient admitted with suspected COVID-19 who requires continuous cardiac monitoring?

Accepted Answer

Airborne plus contact precautions

Answer

COVID-19 requires airborne and contact precautions; monitoring equipment must be dedicated to that patient and staff must wear appropriate PPE including an N95.

(DC) Dysrhythmia Certification Practice Test

(DC) Dysrhythmia Certification Practice Test

DC Safety & Infection Control 2