Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: M-Spike. How concerned should I be?My allergy doctor somehow decided to test me for some antibodies & some other things due to some unusual symptoms and I had an M-Spike result. She was quite concerned.Specifically, the test was "Protein Immunofix Electrophoresis, Serum Details" and the result was "abnormal band identified as monoclonal IgG kappa."I went to my primary care provider who ordered some follow-up tests, which I just got back. The results are in the table below. Most are normal, but the first one is presumably a repeat test (and same result) of the igG kappa.On Wednesday I'm meeting with a Hematology/Medical Oncology doctor. In the meantime I'm wondering if I should be losing sleep over this. Because I am.I'm 50 yrs old, 5' 9", 150 lbs., male, I take pepcid, non-smoker. I've been having some strange symptoms for five years (balance, adult onset scoliosis, right sided fatigue, bone pain on the right side).Thank you.. ### Response: Note: I am not a hematologistLooks like monoclonal gammopathy of uncertain significance (MGUS). A small percentage of people with this condition will progress each year to a low-grade malignancy called smoldering multiple myeloma or to overt multiple myeloma. Some people may develop other malignancy of the plasma cells (mature B cells that produce memory antibodies). Most people are simply monitored for rising amounts of the monoclonal protein over many years, and don't require treatment.Monoclonal proteins may be associated with elevated Factor VIII, which can predispose patients to blood clots. If you have a history of DVT or pulmonary embolism, the presence of these proteins could be a reason to consider ongoing anticoagulation medication long-term. If you haven't had a blood clot, it may be a reason to consider DVT prophylaxis when in high-risk situations, such as surgery or long periods of travel or prolonged bedrest.Your hematologist will probably tell you to have blood tests periodically to monitor the level of monoclonal protein. Based on the data that you gave, it doesn't look like you have a large amount of abnormal protein, so you are unlikely to require treatment..