Neurology Exam Prep Podcast Episode 40 - Basics of EMG and Nerve Conduction Studies
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Dec 20, 2021 AI Snips
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Episode notes
EMG and NCS
- EMG and nerve conduction studies are distinct tests.
- They are often performed together and referred to as "EMG."
Test Setups
- Both EMG and nerve conduction studies use a differential amplifier setup.
- Nerve conduction studies use external stimulation, while EMGs use voluntary muscle activation.
Interpreting Nerve Conduction
- Myelin integrity is assessed by nerve conduction speed/latency.
- Axonal integrity is reflected in the amplitude of the nerve signal.