EMG (Electromyography):

• Small electrodes are placed on the skin or a fine needle is inserted into the muscle
• These electrodes record electrical signals from muscle fibers during contraction and rest
• Results are displayed as waveforms on a monitor for physician analysis
• While needle insertion may cause brief discomfort, the test is generally well-tolerated

NCV (Nerve Conduction Velocity):
• Surface electrodes are placed on the skin over the nerve being tested
• A mild electrical impulse stimulates the nerve at various points
• The time it takes for the impulse to travel between electrodes is measured
• Typically painless, though patients may feel a slight tingling or warmth during the test

Doctors may recommend EMG and NCV tests if you experience:
• Unexplained muscle weakness or atrophy (shrinking)
• Numbness, tingling, or “pins and needles” sensations
• Persistent pain or cramping in muscles or joints
• Involuntary muscle twitching or spasms
• Difficulty moving specific body parts (e.g., in conditions like Carpal Tunnel Syndrome)

Conditions Commonly Diagnosed:
• Peripheral neuropathy (damage to nerves outside the brain and spinal cord)
• Radiculopathy (nerve root compression, often in the spine)
• Motor neuron diseases (e.g., ALS – Lou Gehrig’s disease)
• Myasthenia Gravis (autoimmune neuromuscular disorder)
• Muscular dystrophies (genetic disorders causing progressive muscle weakness)

Accurate Diagnosis: These tests provide precise data on muscle and nerve function, allowing doctors to pinpoint the exact location and severity of nerve or muscle damage.

Guiding Treatment Plans: The detailed information gathered helps doctors make informed decisions about treatment options, whether they involve physical therapy, medications, or surgical interventions.

• Avoid applying lotions or oils to your skin before the test

• Inform your doctor of any medications you’re taking, especially blood thinners

• Wear comfortable clothing that allows easy access to the areas being tested

• Try to relax during the procedure for the most accurate results

• You may be asked to contract specific muscles during EMG testing