Nerve Conduction Studies: What Your Results Mean - Neurology

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Nerve conduction study


Hello doctor, recently I've been experiencing occasional pain in my right hand, so I went for an examination.
The doctor arranged for nerve conduction studies of the limbs and cervical spine.
The results showed a slight slowing of the right ulnar nerve conduction velocity, indicating mild damage.
I asked the doctor if I should schedule an electromyography (EMG) test, but the doctor said it wasn't necessary and that I would recover by taking medication on time and improving my posture.
However, since no EMG was arranged and I have health anxiety, I feel a bit anxious.
After returning home from the examination, I've noticed slight tremors and mild weakness in my limbs.
I'm wondering if this could be due to anxiety and psychological factors leading to autonomic nervous system dysregulation and heightened sensitivity.
Should I ask the doctor to arrange for an EMG test? Is it possible that I could be developing amyotrophic lateral sclerosis (ALS)?

fakeia, 20~29 year old female. Ask Date: 2023/08/10

Dr. Wu Mukhan reply Neurology


Hello, abnormal nerve conduction velocity is most commonly caused by nerve compression or injury, and it usually improves with rest.
The symptoms you mentioned do not resemble those of amyotrophic lateral sclerosis (ALS), so there is no need to worry excessively.
If the symptoms do not improve, you can certainly arrange for an electromyography (EMG) for further evaluation.

Reply Date: 2023/08/10

More Info


Understanding the results of nerve conduction studies (NCS) can be quite daunting, especially when you're experiencing symptoms like pain and weakness in your limbs. Based on your description, it seems that your recent tests indicated a slight slowing of the conduction velocity in your right ulnar nerve, which suggests a mild injury or irritation to that nerve.
Nerve conduction studies are designed to measure how quickly electrical signals travel through your nerves. A slower conduction velocity can indicate various conditions, including nerve compression, inflammation, or other neuropathies. In your case, the doctor has suggested that the findings are not severe enough to warrant further testing with electromyography (EMG), which is often used to assess the electrical activity of muscles and can provide additional information about nerve and muscle function.

Your concern about the potential for more serious conditions, such as amyotrophic lateral sclerosis (ALS), often referred to as Lou Gehrig's disease or "漸凍人" in Mandarin, is understandable, especially given your anxiety about health issues. However, it is important to note that ALS typically presents with a combination of symptoms, including progressive muscle weakness, atrophy, and fasciculations (muscle twitching), which are not solely based on nerve conduction studies. The symptoms you describe, such as mild tremors and weakness, could indeed be influenced by anxiety and stress, which can lead to heightened sensitivity to bodily sensations and even psychosomatic symptoms.

If your doctor has recommended a conservative approach—focusing on medication and posture improvement—this is often a standard treatment for mild nerve issues. Many patients experience significant improvement with these measures alone. However, if your symptoms persist or worsen, it is entirely reasonable to seek a second opinion or request further testing, such as an EMG. This test can help clarify whether there is ongoing nerve damage or if the symptoms are primarily due to anxiety or other factors.

In terms of your anxiety, it might be beneficial to explore relaxation techniques, cognitive behavioral therapy, or mindfulness practices, which can help manage stress and reduce the perception of pain. Anxiety can indeed exacerbate physical symptoms, leading to a cycle of worry and discomfort.

In summary, while your nerve conduction study results indicate a mild issue with the ulnar nerve, the absence of more severe symptoms and the doctor's recommendation to manage your condition conservatively are reassuring. If your symptoms do not improve or if you continue to feel anxious about your health, do not hesitate to discuss your concerns with your healthcare provider. They can help you navigate your symptoms and determine the best course of action for your situation. Remember, it is always better to address your concerns openly with your doctor, as they can provide the most personalized and accurate advice based on your medical history and current condition.

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