Please be aware there are a number of Royal Mail strikes in October and November that will affect receiving and returning your tests. Please keep up to date with our service updates to minimise the impact for you and your clients here
T7 Free Thyroxine index
A marker to determine how much active T4 is available ie how well the thyroid is functioning. Used to determine hypo and hyper thyroid status.
Liver & Gallbladder
Minerals & Metals