I'd be very grateful for some guidance. I've just received the results of my active B12 test done through medichecks:
I am on three-monthly injections and my last injection was 10 weeks before the test. I haven't taken any supplements containing B12 since the injection.
My question: might the injection be enough to explain the result, or should I be looking into liver/kidney issues (I have autoimmune thyroiditis, and I know thyroid hormones and kidney function are related)?
Just to give full context, I was diagnosed with B12 deficiency in January 2015 with a B12 result of 158 ng/L (180-900) and started on injections. I also supplemented high doses (5mg per day, typically) sublingually for many months, but have not done so for the past year.
Many thanks for any help.
EDITED TO ADD:
Eep! I meant also to mention that my folate looks a little low to me (at least, it's lower than it usually is):
I have no idea whether or not this is relevant to anything, but again, would be so grateful for any guidance.