EMG Quality Assurance & Compliance 2

Question 1

Which document must be completed before performing an EMG study on a patient who cannot provide verbal consent?

Accepted Answer

Written informed consent from a legally authorized representative

Answer

When a patient cannot provide verbal consent, written informed consent must be obtained from a legally authorized representative prior to the procedure.

Question 2

A needle EMG electrode is visibly bent after use. What is the correct action?

Accepted Answer

Discard it in a sharps container immediately

Answer

Bent or damaged single-use needle electrodes must be immediately discarded in an approved sharps container to prevent injury and cross-contamination.

Question 3

What is the primary purpose of a daily biological check on an EMG amplifier?

Accepted Answer

To verify that the amplifier accurately records known biological signals

Answer

A daily biological check ensures the amplifier is faithfully recording known signal characteristics, confirming instrument function before patient studies.

Question 4

Which OSHA standard most directly governs EMG laboratory personnel exposure to bloodborne pathogens?

Accepted Answer

29 CFR 1910.1030 (Bloodborne Pathogens Standard)

Answer

OSHA 29 CFR 1910.1030, the Bloodborne Pathogens Standard, mandates exposure control plans, PPE use, and training for workers at risk of contact with blood or OPIM.

Question 5

When must a conduction velocity measurement be corrected for skin temperature in nerve conduction studies?

Accepted Answer

When limb skin temperature falls below 32°C (89.6°F)

Answer

Nerve conduction velocities slow approximately 1.5–2.5 m/s per degree Celsius drop; correction or warming is required when skin temperature falls below 32°C to avoid falsely abnormal results.

(EMG) Electromyography Certification Practice Test

(EMG) Electromyography Certification Practice Test

EMG Quality Assurance & Compliance 2