I had a blood test recently as I'm stupidly tired all the time. They've all come back as satisfactory however I'm confused.
My serum ferritin level came back at 19ng/ml and normal results are apparently between 13-150ng/ml in women age 15-60 according to the details with the blood results, but....
NICE guidance says 'In all people, a serum ferritin level of less than 30 micrograms/L confirms the diagnosis of iron deficiency' If I convert 19ng/ml to mg/l it comes out at the same (19)
So why do my results say it's normal if it's between 13-150?