ORDER
Place your order
Order online, no GP referral required for direct-access tests.
Practitioner grade
Practitioner only
Full thyroid hormone blood panel
Beyond TSH alone
Measures TSH, free T4, free T3 and reverse T3 for a complete thyroid hormone assessment.
What it measures
- TSH (Thyroid Stimulating Hormone)
- Free T4 (Thyroxine)
- Free T3 (Triiodothyronine)
Test details
CollectionSee product page
Results in24 hours
LabNutriPath
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
Clinician-reviewed report
Plain-English + GP PDF
Direct-access ordering
Clinical interpretation included
Sample to result
From sample to actionable answer.
Direct-access pathology and assessments. Every result is reviewed by a clinician before it reaches you.
RECEIVE
Get your form or kit
Email pathology form, postal collection kit, or assessment link within 1–2 business days.
COLLECT
Collect or complete
At any pathology network, at home, or online, depending on the test.
RESULTS
Clinician-reviewed report
Plain-English summary plus GP-formatted PDF. Share with your practitioner or keep private.
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.
Reference range: 0.5 to 2.5 mIU/L optimal, up to 4.5 accepted
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.
Reference range: 12 to 22 pmol/L
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.
Reference range: 3.5 to 6.5 pmol/L
How it works
Your practitioner will advise on collection. Follow the kit instructions and return your sample as directed.
Warnings: This is a health information tool and is not a diagnosis. Discuss your results with your practitioner before making changes to medication, supplements or treatment.
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Frequently asked.
Common questions about how OptiLabs works: testing, supplements, clinician review, returns and timing.
Are the supplements safe?
All carry an AUST L designation from the TGA. Every order is reviewed by a clinician before dispatch.
Do I need a referral?
No. All tests are available to order directly. Our lab partner is NATA and RCPA accredited, operating as a direct-access pathology service.
Begin your investigation
Personalised health. Clinical rigour. Delivered to you.
A proper investigation into what's driving your symptoms, with a clinician-reviewed report, not a cryptic lab printout.