I am altering my thyroid medication and have also had my B12 and Folates checked. Can anyone help interpret the result? I have been advised I need to be in range between 500-1,300 pg/ml (picograms per millilitre) but my B12 results say 452 ng/L (nanograms per litre). I'm assuming these are the same relative grammes to volume, just expressed differently?
Many thanks.