EMG Procedures & Techniques

Question 1

What is the primary purpose of a needle electrode in EMG testing?

Accepted Answer

To record muscle electrical signals

Answer

To deliver electric stimulation

Answer

To draw blood samples

Answer

To measure skin resistance

Question 2

Why is patient positioning important during EMG testing?

Accepted Answer

To ensure accurate recordings and patient comfort

Answer

To reduce blood pressure

Answer

To monitor brain activity

Answer

To measure vital signs

Question 3

What does insertional activity refer to in an EMG procedure?

Accepted Answer

Initial electrical response upon needle insertion

Answer

Activity after muscle contraction

Answer

Response to stimulation

Answer

Skin surface voltage

Question 4

Which technique is used to evaluate nerve conduction velocity?

Accepted Answer

Nerve conduction study

Answer

Needle biopsy

Answer

Skin impedance test

Answer

Reflex arc testing

Question 5

What is the typical response of a healthy muscle at rest during EMG?

Accepted Answer

Electrical silence

Answer

High amplitude bursts

Answer

Intermittent spikes

Answer

Regular tremor waves

Question 6

Which step is critical before inserting the EMG needle electrode?

Accepted Answer

Preparing the skin for cleanliness

Answer

Applying bandages

Answer

Shaving the head

Answer

Taking blood pressure