I have had a number of blood tests over the last few months due to having two miscarriages. My tsh and thyroid antibodies have been high and I'm being treated privately with low dose thyroxine.
My blue horizon results showed a low b12 level:
B12 = 215 (deficient <140, insufficient 140 - 250, consider reducing dose >750).
So BH labs marked this result as insufficient.
GP wanted to do her own test 2 weeks later. Results came back as:
B12 = 269 (197 - 771)
So nhs labs mark this as normal and I imagine my GP will therefore say that there is nothing to worry about.
My question to you is, do I need to push for more tests on this? I've started taking b12 lozenge 5000 mg. My folate levels are good (high end of the normal range). We would like to start trying for a baby again next month.