Measure, don't guess

Advanced thyroid testing

We start with a functional blood chemistry baseline, then add targeted tests for the contributing factors your results point to.

Your baseline

Functional blood chemistry

A baseline panel read against functional ranges, so we see not just whether something is "abnormal", but whether it is working well.

  • Full blood count
  • Thyroid panel
  • Blood sugar
  • Liver and kidney function
  • Iron and ferritin
  • Vitamins

Advanced testing

Targeted tests by system

Never a blanket screen: each test earns its place.

The Doctors Laboratory · Blood

Full Thyroid Panel

TSH, free T4, free T3, reverse T3 and thyroid antibodies (TPO and thyroglobulin).

Helpful for

  • Symptoms on a normal TSH
  • Suspected Hashimoto's
  • Poor conversion
The Doctors Laboratory · Blood

Nutritional Status

Iron and ferritin, vitamin D, B12, zinc, selenium and iodine: the raw materials your thyroid needs.

Helpful for

  • Tiredness
  • Hair thinning
  • Poor conversion
The Doctors Laboratory · Blood

Blood Sugar

Glucose, HbA1c and fasting insulin.

Helpful for

  • Energy crashes
  • Weight gain
  • Cravings
Genova Diagnostics · Saliva / blood

Adrenal Function

Cortisol rhythm across the day, and DHEA-S.

Helpful for

  • Stress
  • Poor sleep
  • High reverse T3
Genova Diagnostics · Stool

Gut Function

Stool analysis covering digestion, inflammation and the microbiome.

Helpful for

  • Bloating
  • Poor absorption
  • Autoimmunity
Cyrex Labs · Blood

Intestinal Permeability

Markers of a "leaky" gut barrier and immune reactivity, linked to thyroid autoimmunity.

Helpful for

  • Hashimoto's
  • Food reactions
  • Inflammation

Our laboratories

Four labs, four lenses

London

The Doctors Laboratory

  • Functional blood chemistry baseline
  • Full thyroid panels
  • Nutrients and blood sugar

USA

Genova Diagnostics

  • Adrenal function
  • Stool analysis
  • Nutritional testing

USA

Cyrex Labs

  • Intestinal permeability
  • Autoimmune reactivity
  • Food immune reactions

USA

Mosaic Diagnostics

  • Organic acids testing
  • Nutrient and energy markers
  • Yeast and mould testing

How testing works

From consultation to results

  1. Agree the tests

    At your Discovery Consultation we agree which tests are useful, and the cost, before anything is ordered.

  2. Collect your samples

    Blood tests need a blood draw; some kits can be done at home.

  3. Results come in

    The lab sends results to the clinic, ready for your Full Consultation.

  4. Understand them

    We explain your results in plain terms and turn them into a plan.

Laboratory test costs depend on which tests you need, and are discussed with you before anything is ordered.

Test what matters, not everything

Testing is aimed at the factors most likely to be holding your thyroid back.

Book a Discovery Consultation

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