£ 70
Thyroid profile Thyroid-stimulating hormone (TSH) Free thyroxine (FT4) Vitamin D
£ 114
Active B12, Ferritin, Thyroid Advanced Profile and Vitamin D
£ 120
Active B12, folate, advanced thyroid, vitamin D
£ 137
Advanced thyroid, Active and total b12, folate and iron [THV542,TF2]
£ 125
Advanced Thyroid Function