ORDER
Place your order
Order online, no GP referral required for direct-access tests.
Practitioner grade
Practitioner only
Complete thyroid workup with antibodies
The full thyroid picture
Measures the complete thyroid hormone panel together with thyroid antibodies.
What it measures
- TSH
- Free T4
- Free T3
- Reverse T3
- TPO Antibodies
- Tg Antibodies
- T3 : rT3 Ratio
Test details
CollectionSee product page
Results in3 to 5 days
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
Blood (SST)
The pituitary signal. Context for interpreting thyroid hormone levels.
Reference range: 0.5 to 2.5 mIU/L optimal
Free T4
Blood (SST)
The storage form. Most thyroid medication replaces this.
Reference range: 12 to 22 pmol/L
Free T3
Blood (SST)
The biologically active hormone your cells use.
Reference range: 3.5 to 6.5 pmol/L
Reverse T3
Blood (SST)
The inactive metabolite. Elevated rT3 blocks T3 at the receptor level and explains persistent hypothyroid symptoms despite normal other markers. The T3 to rT3 ratio is more informative than rT3 alone.
Reference range: Under 250 pg/mL, ratio to T3 matters more
TPO Antibodies
Blood (SST)
Catches Hashimoto's autoimmune activity.
Reference range: Under 35 kIU/L
Tg Antibodies
Blood (SST)
Adds specificity to autoimmune detection.
Reference range: Under 40 kU/L
T3 : rT3 Ratio
Calculated
One of the most useful ratios in complex thyroid cases. Low ratio indicates T4 is being shunted to inactive rT3, common in stress, chronic illness, and prolonged calorie restriction.
Reference range: Above 20 preferred
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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Patients following practitioner-designed protocols, sharing their outcomes in their own words.
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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.