AG Neurocity, Ghospura Moar,opposite civil hospital, Jalandhar road, Batala
Patient Information: Repetitive Nerve Stimulation (RNS) Test
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❓ What is the RNS Test?
The Repetitive Nerve Stimulation test is a type of electrodiagnostic test used to assess neuromuscular junction disorders—conditions that affect the communication between nerves and muscles.
🩺 Why is it Done?
It helps diagnose conditions like:
- Myasthenia Gravis (MG)
- Lambert-Eaton Myasthenic Syndrome (LEMS)
- Other disorders where muscle weakness occurs due to faulty nerve-muscle communication
🔍 How is the Test Performed?
- Small electrodes are placed on your skin over specific muscles.
- A mild electrical impulse is repeatedly sent through a nearby nerve.
- The response of your muscle is recorded several times (usually 6–10).
- No needles are used (unless combined with EMG).
- It takes about 30–45 minutes.
😌 Is it Painful?
- You may feel a mild tingling or tapping sensation.
- The test is safe and well-tolerated.
- No anesthesia or special preparation is needed.
⚠️ How Should I Prepare?
- Inform your doctor if you are taking medications like pyridostigmine, as they may need to be paused.
- Avoid using lotions or oils on the skin before the test.
- Eat normally unless advised otherwise.
📈 What Does It Show?
- The test checks whether your muscle response weakens with repeated stimulation.
- A progressive drop in response can help confirm conditions like Myasthenia Gravis.
✅ Benefits
- Non-invasive
- Quick results
- Helps guide accurate diagnosis and treatment