1. According to the conduction test, was Annie’s nerve function normal? 2. Accor
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Question
1. According to the conduction test, was Annie’s nerve function normal?
2. According to Annie’s emg test, was Annie’s skeletal muscle function normal?
3. Considering your answers to Questions 1 and 2, why did activity in Annie’s motor nerves produce a skeletal muscle response that fatigued during repetitive stimulation?
Part II-The Neurologist Annie returned to the neurologists office with her mother. That morning Annie had been subjected to several different tests and she had been asked to return after lunch when the results would be in. The nurse told her that they were rushing this through because they knew that Annie was only home for a week. Annie and her mother sat in the waiting room for what seemed to be hours. At last the nurse came for them, "Some of the results are here, and the rest are on their way," she explained. "So the doctor will see you now.'" Annie and her mother went into the doctor's office and sat down. "Well, Annie, I have read your family doctor's notes, and we put you through a battery of tests this morning The neurologist skimmed through the chart, “Hmm, blurred vision, weak fingers, and decline in swimming performance. OK, let's see what we found out today. First, the nerve conduction and the electromyography (EMG) tests; these are the only results we have right now. This was the test when they put sticky electrodes orn our skin, remember?" Annie nodded. "Well, for the nerve conduction tests one set of electrodes stimulated the nerve and another recorded its response a little wa and the conduction velocity is fine; nothing wrong with your nerves." Annie and her mother looked at each other and smiled with relietf. y down the nerve. The nerve conduction results are normal. There is no nerve fatigue "Now, the electromyography test involves recording from a muscle; it was done in two stages. The first stimulated the muscle directly, and there isn't too much out of the ordinary there. The second stage is when the nerves were stimulated and the muscle response was recorded. These results concern me because the muscle response decreased quickly during repeated nerve stimulation, indicating that your muscle response fatigued over time.Explanation / Answer
Acording to the conduction test performed by her neurologist, Annie's nerve function was normal, because there was no nerve fatigue and the conduction velocity was also fine, nerves were perfectly all fine. According to the emg test i.e. the electromyography test the muscles were fine when they were stimulated directly but when muscles were stimulated with nerves, problem was observed as her muscle response was observed to be decreased quickly during the time period of repeated nerve stimulation and fatigue was observed in her muscle response, indicating that she was suffering from muscle weakness. considering the answer to situation 1 and 2, Annie's motor nerves produce a skeletal response that fatigued during repeated stimulation because of certain problems in the communication. generally, the nerves communicate with the mucles when the neurotransmitters like acetylcholine are released and when they bind with the receptors present on the neuromuscular junction in the muscle cells. This problem might arise because of the weakened immune system because certain antibodies which are produced as a result of weak immune system, blocks the receptors. As these receptors are blocked there are only a few receptors left which receive the stimulus, as a result of this the repeated stimulation to only a few receptors will cause muscle fatifgue.
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