I wonder if anyone could explain my blood results. My GP (who is trying to help me) requested bloods but said they may not test and send results as FT3 should be requested by an Endo, so I paid for bloods myself just in case and also to speed the process. My bloods taken only 6 days apart, both under the same conditions (no Levo for 24 hours before, no food before and only water) are very different, why would this happen?
First set - TSH <0.005mlU/L (range 0.27-4.2) … FT3 5.51pmol/L (range 3.1-6.8) … Free Thyroxine 26.5 pmol/L (range 12-22) … Thyrogloglobulin antibodies 10.4 kU/L (range <115) … Thyroid Peroxide antibodies <9.0 klU/L (range <34).
second results, 6 days later _ TSH <0.30mu/L (0.35-4.94) … FT3 4.0 pmol/L (2.6-5.7) … Serum Free T4 (XaERr) 18.5 pmol/L (9-19.0) … Serum ferritin (XE24r) 34ug/L (15-200) … Serum vitamin D 85.0 nmol/L (71-200) … serum folate 17.2 ug/L (3-20) … serum vitamin B12 level 516 ng/L (180-640).
If anyone can explain or advise me on the above I would be very grateful. I will be seeing my GP next week and need to be able to understand the results and especially why they vary so much.