Complete Thyroid Test

When the thyroid is low, people feel fatigued and depressed; they lack motivation, have difficulty losing weight, can’t concentrate and tend to have more trouble with digestion. If the thyroid is off, the entire system may feel run down. Better thyroid function improves immune function, heart health, metabolism, energy levels, as well as sexual and reproductive health.

Regular thyroid tests only measure thyroid stimulating hormone (TSH) and sometimes total T4. The Complete Thyroid Panel gives a comprehensive view of thyroid function by measuring TSH, T3 (free and total), T4 (free and total), reverse T3, anti-thyroglobulin and thyroid peroxidase antibodies. This test can be ordered standalone or as part of a consultation.

The Complete Thyroid Profile measures the following from a single blood draw:

• Thyroid Stimulating Hormone (TSH) – TSH causes the thyroid gland to make two hormones, T3 and T4, which help control the body’s metabolism. This test is done to find out whether the thyroid gland and brain-thyroid communication are working properly.
• T4, Total – This test measures the total amount of T4 (Thyroxine) in blood.
• T4, Free – Most of the T4 in the body binds to protein, the T4 that does not is called ‘free T4’ and circulates unbound in blood. This test also includes measurement of the free T4 levels.
• T3, Total – T3 (triiodothyronine) is the most important thyroid hormone for the body’s control of metabolism. This test measures the total amount of T3 in blood.
• T3, Free – Most of the T3 in the body binds to protein, the T3 that does not is called ‘free T3’ and circulates unbound in blood. 
• T3, Reverse – Reverse T3 is converted by the liver from the stored hormone T4, it is the body’s main way of getting rid of unneeded T4 every day. Sometimes the body can make too much reverse T3 from a number of causes including chronic emotional, physical, or biological stress, chronic sickness, post surgery, diabetes, ageing, or an acute injury.
• Thyroid Peroxidase (TPO) Antibody – Thyroid peroxidase (TPO) is an important enzyme for producing thyroid hormone. TPO converts T4 to T3. High levels of TPO antibodies suggest the immune system is mistakenly attacking this enzyme and the thyroid gland, compromising thyroid activity.
• Thyroglobulin (Tg) Antibody – Thyroglobulin (Tg) is a protein produced and used by the thyroid gland to make the hormones T3 and T4. High levels of antibodies to Tg suggest the immune system is mistakenly attacking the thyroid gland.

Private Blood Draw ($80-$90)
Please note that the test kit comes complete with instructions and a pre-paid courier to the US lab. However, you will need to visit a local blood lab to get a 'private blood draw'. These labs usually charge a fee of $80-$90 for this service. This cost will be additional to the purchase of the test.

Functional Medical Tests – Costs, Terms & Timeframes

All functional test kits incur only minimal administrative costs and include a pre-paid courier bag with full instructions for self-collection and submission. Kits are dispatched to one of our New Zealand distributors — FxMed or Nutriscript — who consolidate and forward samples via weekly shipments to accredited laboratories in the United States or Australia.

The standard turnaround time for results is 3–5 weeks from the date of sample submission. If you have not received your results within 5 weeks, please contact us so we can follow up on your behalf.

Please note: Occasional delays may occur due to customs clearance, international courier disruptions, or laboratory backlogs. These are outside our control but we will assist in tracking and resolving any extended delays.

Once results are available, we receive them directly from the distributor and forward them to you on the same day. Laboratory reports typically include detailed interpretations, reference ranges, and explanatory notes.

We strongly recommend booking a follow-up consultation — either online or in person — to contextualise your results within your broader health strategy. This ensures accurate interpretation and integration into your personalised care plan.

Consultation fees are additional to the cost of the test kit.