Patient Resources
What does an EMG test show?
Short answer
EMG and nerve conduction studies measure how well nerves conduct signals and how muscles respond. Together they help determine whether a nerve is compressed or injured, where the problem is located, how severe it is, and whether it appears recent or long-standing.
Understanding this
Nerve conduction studies apply small electrical pulses to the skin and record how quickly and strongly the nerve responds. EMG uses a fine needle electrode to record electrical activity within a muscle.
The two studies are complementary. They can help distinguish carpal tunnel syndrome from a cervical radiculopathy, identify a generalized peripheral neuropathy, and clarify whether weakness comes from nerve or muscle.
Symptoms and signs
- Numbness or tingling in the hands, feet, arms, or legs
- Weakness or muscle wasting
- Pain radiating into an arm or leg
- Symptoms following a nerve injury
How it is evaluated
- Nerve conduction studies of the affected limb
- Needle EMG of selected muscles when indicated
- Interpretation together with history, examination, and imaging
When to seek care
- Rapidly progressive weakness, difficulty breathing, or difficulty swallowing requires emergency care.
- New or worsening weakness should be evaluated promptly.
Emergency symptoms
Request a Neurology Appointment
Text 815-276-7050 with your first name and the word "Memory," or call 815-337-7100 to schedule. Our office will follow up to confirm your evaluation.
In-person visits and televisits (telehealth) are both available.
What happens after you text
Text 815-276-7050 with your first name and a keyword. Our office calls you back to schedule — you do not need to fill out a form.
When you'll hear back
Texts and calls received during office hours are typically returned the same business day. You can also call 815-337-7100 directly.
Insurance and referrals
Insurance participation and referral requirements vary by plan. [Insurance details — placeholder]. Our office will confirm what your plan requires before your visit.
Please do not send urgent or emergency medical information by text. If you believe you are experiencing a medical emergency, call 911 or seek emergency medical attention. Please avoid sending sensitive medical information by ordinary SMS unless instructed otherwise.