Electrodiagnostic testing

EMG Nerve Testing

Numbness, tingling, weakness, or radiating pain can come from different nerve or muscle problems. EMG and nerve conduction studies help identify where the signal is disrupted so treatment can be more precise.

What EMG testing measures

Electromyography evaluates electrical activity in muscles, while nerve conduction testing measures how quickly and effectively nerves send signals. Together, they help clarify nerve and muscle function.

Why PPSI may recommend it

  • Numbness or tingling in arms, hands, legs, or feet
  • Radiating pain from the neck or back
  • Suspected carpal tunnel syndrome
  • Possible neuropathy or nerve injury
  • Weakness that needs objective testing
  • Symptoms that persist despite initial treatment

How results guide care

Results can help distinguish nerve root irritation, peripheral nerve compression, neuropathy, or muscle-related issues, guiding therapy, injections, surgery referral, or other treatment decisions.

Coordinated next steps

Because EMG is part of the PPSI care network, results can be reviewed alongside imaging, exam findings, pain care, spine care, orthopedics, podiatry, and rehabilitation.

Frequently Asked Questions

Is an EMG the same as an MRI?

No. MRI shows structure. EMG and nerve conduction testing evaluate nerve and muscle function. The tests often answer different clinical questions.

Does EMG testing help with sciatica?

It can help when symptoms suggest nerve involvement and the provider needs more information about nerve function.

How should I prepare?

Follow the scheduling team's instructions. Bring prior imaging, medication lists, and details about where symptoms travel.