Brief Answer:
Not necessary for Parkinson's disease.

Detailed Answer:
I read your question carefully and I understand your concern.

Your perplexity is justified, EEG is not a test which is required for Parkinsons disease. It is used mainly in epilepsy, at times to evaluate comatose patients, not for Parkinson or any similar disorder anyway. It is not an invasive test, no risks involved, but still unnecessary.

Could it be that you have the acronym wrong, could it be that it was EMG (electromyography) that he wanted to do. At times when there is doubt whether a patient with tremor has Parkinson, an EMG may be done to determine tremor characteristics, its frequency, whether it is indeed a parkinsonian tremor or maybe of another kind.

If you are sure it is EEG then I really can not explain it. You should discuss with the neurologist what prompted him to ask for that test, perhaps something you've said or that he noticed has led him to suspect epilepsy.

I remain at your disposal for further questions.

---

Brief Answer:
Read below

Detailed Answer:
They are different tests, EMG tests limb muscles and as I said at times (not always) can be done for the tremor in parkinson's. EEG on the other hand places electrodes on the scalp to record electrical activity in the brain and capture abnormal activity as in epilepsy.

So the tests are completely different. You do not need to worry much about the EMG, if confirmed you can forget about it, I mentioned it only in case you had perhaps heard it wrong and it was meant that instead of EEG since they differ by only one letter, didn't mean to confuse you any further.

I maintain what I said earlier, that EEG is not necessary for Parkinson's, so your neurologist should explain to you what is the purpose of having that test.

I hope to have been of help.

---