Where did you get the above 100 range from, and do you know which units it is?
My lab report does not give a reference range. It actually says "not applicable". The test was a 25-OH vit D. The units were nmol/L
I have been trying to find a UK official reference range without much success. The goal posts move. I have seen that 50 is the lowest adequate level, that between 50 and 100nmol/l (20-40ng/mL) is normal, also seen that 75 is adequate. 200 is too much. No-one seems to know for sure, which may explain why my lab doesn't give one.