ORDER
Order and referral check
Order your test. We review the order and check whether a referral or other information is required before the next step can begin.
Practitioner grade
NutriPath
Full thyroid hormone blood panel
NutriPath pathology testing
A thyroid function blood test measuring TSH, free T3 and free T4. Check the markers included when comparing this panel with thyroid antibody tests.
About this test
TSH is a pituitary signal, not a measure of thyroid function. Your thyroid can be underperforming while TSH sits in the so called normal range, particularly in the subclinical territory between 2.5 and 4.5 mIU/L where many functional practitioners consider intervention worthwhile. The only way to know what your thyroid is actually producing, and whether your body is converting the storage hormone T4 into the active hormone T3 properly, is to measure both free T3 and free T4 alongside TSH. This panel does exactly that. It is the starting point for anyone whose thyroid symptoms have been dismissed, anyone with a family history of thyroid disease, anyone on thyroid medication wanting to check their conversion, and anyone in perimenopause where thyroid changes are common but often masked by hormonal symptoms.
What it measures
- TSH (Thyroid Stimulating Hormone)
- Free T4 (Thyroxine)
- Free T3 (Triiodothyronine)
Test details
CollectionBlood collection provider
LabNutriPath
When to expect your results
24 hours after the laboratory receives your sample
Allow time for order and referral checks, your collection appointment and sample transport. Laboratory processing starts after your sample reaches the testing laboratory.
See the steps from order to results
Practitioner consult session
A 15-minute consultation. An email link will be included in your order confirmation to make the booking.
Optional 1:1 with our clinical team · $49
What it measures
TSH (Thyroid Stimulating Hormone)
Blood (SST)
The pituitary signal that drives the thyroid. High TSH with low thyroid hormones indicates hypothyroidism. Functional practitioners often consider TSH above 2.5 mIU/L with symptoms worth investigating.
Free T4 (Thyroxine)
Blood (SST)
The storage form of thyroid hormone. Most thyroid medication (thyroxine) replaces this form. Low fT4 with high TSH confirms a thyroid production problem.
Free T3 (Triiodothyronine)
Blood (SST)
The biologically active hormone. Your cells use T3, not T4. Low free T3 despite normal TSH and T4 is a common functional pattern that standard testing misses. Often reflects poor conversion due to stress, selenium deficiency or calorie restriction.
Your testing journey
From your order to your results.
Order and referral review, sample collection, laboratory analysis and discussing your report are separate stages. Your test’s processing estimate covers the laboratory stage.
ARRANGE
Arrange your collection
Once the required checks are complete, follow the collection form and instructions for the nominated provider. Check appointment and preparation requirements.
COMPLETE
Provide your sample
Attend the nominated collection provider with the required form. Your sample then needs to reach the testing laboratory before processing begins.
RESULTS
Laboratory processing
Once the laboratory receives your sample, it completes the analysis and prepares your report. Discuss the findings with your practitioner alongside your symptoms and health history.
Preparing for this test
Read the instructions supplied for your exact test before collecting. Check food, drink, medicines, timing, storage and return requirements with your practitioner. Do not stop prescribed medicines without advice.
Does the estimate include postage?
No. The laboratory estimate does not include order review, referral checks, delivery to you, the time you take to collect, or transport back to the testing laboratory. These stages make up the full order-to-results journey.
Need results by a particular date?
Check with Evergreen before ordering so the referral requirements, collection timing, delivery and laboratory estimate can be considered together.
Ask Evergreen about timingBefore you order.
Practical questions about choosing, preparing for and reviewing this test.
Do I need a consultation or referral?
Requirements vary by test. Check the ordering options on this page and confirm any referral requirements with Evergreen. A laboratory’s practitioner-referral requirement is separate from whether you need to book an additional consultation.
Should I change medicines or supplements before testing?
Do not stop prescribed medicines on your own. Tell your practitioner what you take and follow the preparation instructions for this test. Timing, fasting and other requirements depend on the sample and markers being measured.
Does the test tell me what treatment I need?
A result is one part of an assessment. A qualified practitioner should interpret it alongside your symptoms, history and medicines. Check whether a results consultation is included in your purchase or needs to be booked separately.
How should I read the reference ranges?
Use the reference intervals and units on your own laboratory report. Ranges can vary with the method and patient factors. A result inside or outside a range does not establish a diagnosis on its own.
Who is the testing provider?
These tests are supplied through NutriPath, a medical laboratory founded in 2011 and based in Burwood, Victoria. NutriPath works through a practitioner-referral system.
When does the turnaround estimate start?
The laboratory estimate is not the time from placing your order. Allow time for referral checks, kit dispatch where needed, sample collection and transport before processing. The estimate varies by test, and specialist or overseas analysis can take longer.
Follow the estimate for your specific test. A quoted 3–5 business days does not include the whole ordering and collection journey.
Where do I find preparation and collection instructions?
Use the instructions supplied for your exact kit. Blood tests may require an arranged collection appointment; receiving a kit does not mean you should draw blood yourself. Saliva, urine, stool and breath tests each have different preparation requirements.
Need help choosing?
Find a test that fits your question.
Compare the sample type and what each test measures, or use the guide to narrow your options.