Mayo Clinic Connect
What type of doctor handles test like the MMA Urine test and the HoloTC? Test related to how your body breaks down/absorbs and transport/bonds B12? My B12 test came back extremely abnormal.
Liked by amaedaisie
@sakota ..Yes, tested twice ..both results were >2000..all of the other blood testing results have been within the normal range, except for my B12. The testing started because my neurologists was looking for a possible underlying cause for my autonomic peripheral neuropathy diagnosis, and a low B12 could be a cause…however with the high test result, I am now being referred to an oncologist….I think and hope its just an anomaly
Are you taking a multivitamin? I too have had high vitamin B on my labs for the last 2 years during periods of time where I stopped my multi vitamin. I have found the most vitamins have well over the recommended daily allowance of B vitamins. I have had two instances a couple of years appart where I was taking a multivitamin (one had 400% and the other 800% of the daily allowance) and I had to stop taking them because my blood pressure was high, ringing in my ears, I was having trouble sleeping, and I was anxious. I have just asked my Dr. to repeat the test again. I think if it is high again, I will need to find answers if B can store in your body for long periods of time.
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No I am not taking any multivitamin or Vit. B's..I am presently working with an oncologist and we will be rerunning all my blood work in May
Welcome to Connect, @marlenerose33.
Along with some more information on the significance of b12 levels, https://medlineplus.gov/ency/article/003705.htm I found this recent study that I thought might interest you:
"An observational study of vitamin b12 levels and peripheral neuropathy profile in patients of diabetes mellitus on metformin therapy” https://www.sciencedirect.com/science/article/abs/pii/S1871402117302874
With regard to neuropathy, very often there is no identifiable cause – there are a number of conditions that can trigger it. May I ask if you noticed anything that might have triggered the neuropathy?
Hi, my dad’s B12 test results came very high.
Basically his B12 level is >2000 when the normal range is 200-900.
Is it normal? Should we worry about it? Any other tests that we need to check.
With his current chemo Pemetrexed , the doctor told to take B12 shots 7 days before the chemo with folic acid and he did it during last chemo. His another cycle is coming in one week and I guess we should stop B12 but very confused now since there are many discussion on that. Thanks
Are you talking about vitamin b12?
I am new to this board and not entirely sure how to post but here I go, In October of 2018 I had an appointment with my family medicine doctor regarding some mild neurological symptoms I was having (pins and needles, burning skin, and the feeling, in specific areas, of a bug crawling). I have had fibromyalgia for over 20 years and she basically said that everyone has my symptoms but that I notice it more due to the fibro. I was not a fan of that answer primarily because she has made other comments about fibro that have led me to think she is not a believer. She offered to do a Vitamin B12 test to see if I was deficient. My test results came back with a vitamin B12 level of 1,726 pg/mL which she seemed unconcerned about. I went back this week for an annual check up and I asked her to redo the Vitamin B12 test which she did and my results came back as >1999 mg/mL. I spoke with her nurse who told me that I could come in to talk about the results but that they did not have much to offer me. She also told me that my CBC was normal. There has to be a reason that my B12 is going up, I do not take any supplements. And everything I read about high B12 is not good. But since my CBC came back normal should I just assume all is well?
Liked by Teresa, Volunteer Mentor
I too have had two B12 labs done. One in the 1800s and one 1700s. I am interested in anyone’s experience with this.
I just recently received mine back and it read that my B12 was 1708 .. I'm not really sure what this means or could mean for me. Does Anyone know about this, is it is / has Normally ran 300 -475..occasionally 5oo.
I forgot to mention that I normally have low Red blood platelet count. Which if I use any form of pain medication depletes it almost completely. I've had Tests done for my Liver so it's not that. But I have asked about possible VIII as it runs in our family.I have a life long history of anemia .
I think you need to ask your doctor about this. Maybe ask them to redo the test. I see my doctor Monday and I am going in with medical articles that talk about high B12 and what could be causing it. In addition to what might be causing it, I have read that high B12 is functionally low B12 because it means your body is not utilizing and it is also not being eliminated.
My primary care doctor told me to just forget about my B12 levels and when I insisted we do further research, she asked me who i thought she should refer me to. I told her I didn't know so she referred me to a local hematologist who declined the referral. My inclination is to look for another specialist maybe at UCSF medical center. What are others experiences of this kind of situation?
Hi, I hopefully have some answers for you…and many of you! I also have been trying to figure out the causes of my high B12 for the past four years and after the diagnosis of a rare, genetic disease called, MEN-1 (Multiple Endocrine Neoplasia – Type 1), in early 2018 which is a form of cancer in that it causes tumors throughout my endocrine system, some are benign, some malignant, I thought I finally had the answer. Turns out I was wrong, and to date, this disease is not the cause of my high B-12. That said, I'll admit I was the slightest bit disappointed to learn this particular disease had nothing to do with my high B12…and as my health has continued to decline despite surgeries to remove tumors (the only way to battle to this disease), I have been digging even harder to find the cause of the elevated B12 knowing there IS one! I too have heard from ALL of my physicians, many of whom are quite brilliant, very well-respected, published doctors at major medical institutions such as Mayo, MD Anderson and Baylor that, "there is no clinical significance to my high B-12" when my lab reports come back! Well after four years and me requesting it be checked at least once or twice annually, (each time it has gotten a little higher…yet there's NO SIGNIFICANCE to that???!!!!) Come on already!
So here is what you need to know: Vitamins B and C are water soluble and any surplus of these vitamins is excreted in the urine. Vitamin C and all of the B vitamins — thiamine, riboflavin, niacin, vitamin B-6, folate, vitamin B-12, biotin and pantothenic acid — share similar characteristics because they are all water soluble. The body has a limited ability to store these vitamins so they need to be continuously replenished by the diet. Water-soluble vitamins are absorbed by the digestive tract into the blood stream, metabolized and then excreted by the kidneys in the urine.
Knowing that, here is what you need to look up, and it's right here on the MAYO website, it's on Livestrong, MD Anderson, Healthfully, WebMD, etc… Just google: "causes of high vitamin B-12 levels in the blood"
Here is what I have: a rare blood cancer called, "Polycythemia Vera"
Thank you for your reply. I was aware that vitamin B12 is water soluble which is what is so concerning about high numbers. And many of the things I have read suggest that if it is high it is a functional B12 deficit because it means you are not utilizing B12. But I am also not excreting it which also seems like it should be a matter of concern.
I know that sometimes a high Vitamin B12 level is the first sign of something more serious and often appears before other markers do. I looked up Polycythemia Vera and I have many of the symptoms. What I don't have so far is increased red or white blood cells. My platelets went up 30 points at my last blood test but were still within normal range.
May I asked what type of doctor diagnosed your polycythemia vera? Was it a hematologist? I sent my file to UC San Francisco Medical Center Hematology Department because they state on their website that high Vitamin B12 is something that should be thoroughly investigated. I sent it in mid-June and I still have not heard from them. Every time I call to follow up the new patient coordinator tells me that my file is still in review. I know that there are so many people who are worse off than me so I imagine that their files get higher priority, and rightfully so. And so I wait.
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