I'm posting on behalf of my brother who had some private blood tests done to look at his thyroid function and all came back normal apart from his very low B12 level and low folate as follows:
VITAMIN B12 - *120 (140-724)
FOLATE (SERUM) - 3.92 (2.91-50)
He isn't a vegan and eats a varied diet so I can't see why his level of B12 is so low. His ferritin level was good which makes me think it's not due to something like an inflamed gut causing it as iron would be hard to absorb too in that case.
I'm wondering whether he might have PA and would like some advice on what to get him to do next. I'm thinking he should go to his GP so they can repeat the blood test along with a full blood count to look for anaemia. Would NHS doctors treat someone with below range B12 like this? Would it be shots or oral supplements?
What other tests would they do for PA?
I told him to look at the symptoms of PA/low B12 to see if he had any and he replied that he'd had pins and needles in his arms for a little while. Is this neurological involvement? I know if he needs B12 shots that he should get more if there is neurological involvement.
Any advice that I could pass on to him would be much appreciated. Thank you!