Thyroid Function (TSH, Free T3, and Free T4) Blood Test
$60.00 AUD
Wondering if your unexplained fatigue, weight changes, mood swings, or temperature sensitivity could be linked to how well your thyroid is regulating your body's metabolism?
The Thyroid Function Test checks how well your thyroid gland is working by measuring three key hormones: TSH, Free T3, and Free T4. These hormones control energy, metabolism, and growth. Abnormal results can explain symptoms like fatigue, weight changes, mood shifts, or temperature sensitivity, and may indicate an underactive or overactive thyroid.
You will be emailed a referral to take to your local collection centre. If you ever have any questions, we're here to help.
4k+ Collection Locations
Personalised Reports
Early Detection
Private health tests
How It Works
Getting your health measured shouldn't be hard! We're here to help you every step of the way.
1
Order a test
Order the private test that suits you and your goals. After ordering, you will receive your referral by email.
2
Collect the sample
Attend one of our 4000+ partner collection centres throughout Australia. Search locations.
3
Receive your results
View all your lab results in your secure health dashboard. Easy!
Testimonials
What Our Customers Say
4.9
Average Rating
2,500+Customers Tested
90,000+Individual Biomarkers
A
Adam O.
ACT
Simple health checks in my control
I didn't know that private blood tests were an option. Tried this platform as the packages suited what I wanted for a good price. Easy to follow instructions, and super quick results. Platform provides more information than my gp's ever have on the tests and what the results meant. Would like more clinics to be able to test at (specifically Capital Pathology) but there is a decent network. Will continue to use.
The Performance Check
C
Christopher N.
NSW
Quick access to blood tests
BLOODY GOOD is a very efficient route to access blood testing for a visitor outside the Australian health system. It is quick with the necessary referral and documentation, and quick with results. Thank you
Full Blood Count (FBC) Blood Test
R
Rebecca Y
NSW
Great Service!
Fantastic service to deal with, I love the extra explanations for all the tests.
Glycated Haemoglobin (HbA1c)
O
Olga B.
New South Wales
Convenient
Getting a referral was easy. Laverty pathology accepted it. Bloody Good offers an affordable and convenient way to check essential blood markers.
hs-CRP Blood Test
M
Marita S.
Queensland
Bloody good test
Very comprehensive tests that have given me a good picture of my overall health.
The Bloody Good Test
L
Lukas C.
NSW
Quick, easy, hassle free
Excellent service, quick, easy, hassle free, can recommend.
Testosterone Free/Total + SHBG
A
ABDUL S.
QLD
Amazingly quick and efficient
Very easy to use. Love that it stores your blood tests.
The Performance Test
A
Andre D.
QLD
5 Stars
Efficient and easy to use
Prostate-Specific Antigen (PSA)
W
Wayne
NSW
5 Stars
Extremely helpful company
Calcium Blood Test
"I'm a little biased as I work here! However, I love that The Bloody Good Test tracks my health over time. After turning 40, I wanted to make sure I wasn't going to drop dead from something basic I should have known about earlier. Measuring all my core biomarkers each year gives me peace of mind my health is on the right track"
Cameron SmithHead of Ecommerce, Brisbane
Overview
Your thyroid is like your body's master thermostat, controlling how fast or slow your metabolism runs, how much energy you have, and even how warm you feel. The Thyroid Function test measures three key hormones—TSH (the signal from your brain telling your thyroid what to do), T4 (the main hormone your thyroid produces), and T3 (the active form that actually gets things done in your cells)—to see if your internal thermostat is working properly.
When your thyroid is out of balance, it can leave you feeling exhausted, struggling with unexplained weight changes, feeling unusually cold or hot, or just "off" in ways that are hard to describe. This test is particularly valuable if you're experiencing these symptoms, have a family history of thyroid issues, or are already taking thyroid medication and need to make sure your dosage is just right. By getting a clear picture of how your thyroid is performing, you and your healthcare provider can work together to optimize your energy levels and overall well-being.
Symptoms
Essential for anyone experiencing unexplained fatigue, weight changes, mood disorders, hair loss, temperature sensitivity, or heart palpitations. Particularly important for women over 35, those with family history of thyroid disease, autoimmune conditions, or fertility issues. Valuable for monitoring existing thyroid conditions, medication effectiveness, and routine health screening.
Questions
TFT measures thyroid hormones that control metabolism, energy, and numerous body functions, crucial for diagnosing thyroid disorders.
High levels may indicate hyperthyroidism causing rapid metabolism, while low levels may indicate hypothyroidism causing slow metabolism.
Symptoms may include fatigue, weight changes, temperature sensitivity, heart rate changes, mood changes, and hair or skin problems.
Causes include autoimmune diseases, iodine deficiency, medications, radiation exposure, and genetic factors affecting thyroid function.
Treatment may include thyroid hormone replacement for hypothyroidism or anti-thyroid medications for hyperthyroidism, depending on the condition.
Frequency depends on individual risk factors, symptoms, and whether monitoring known thyroid conditions or screening for new problems.
Dr. Vu Tran Bloody Good’s Chief Medical Officer
3 Biomarkers Tested
No biomarkers found
How to prepare
Morning collection before 10 AM recommended for optimal TSH accuracy as levels fluctuate throughout the day. No fasting required. Avoid biotin supplements for 3 days before testing. If taking thyroid medication, maintain your usual schedule unless advised otherwise by your healthcare provider. Inform your doctor about any medications, particularly thyroid hormones, steroids, or biotin supplements.
After the test
Discuss results with your healthcare provider, particularly if values are outside normal ranges or if you have persistent symptoms. Abnormal results may require additional testing including thyroid antibodies, ultrasound, or more comprehensive hormone panels. Treatment options range from lifestyle modifications to medication. Follow-up testing typically recommended every 6-12 months for monitoring or 6-8 weeks after medication changes.
Your test results will be available in your private dashboard. If there are any urgent issues, we'll let you know so you can follow up with your health professional.
Understanding results
Normal ranges: TSH 0.5-4.0 mIU/L, Free T4 10-25 pmol/L, Free T3 3.0-6.5 pmol/L. Low TSH with high T4/T3 suggests hyperthyroidism; High TSH with low T4 indicates hypothyroidism; Normal TSH with abnormal T4/T3 may indicate subclinical conditions. Results should be interpreted alongside symptoms and clinical presentation. Optimal ranges may differ from laboratory reference ranges for symptom resolution.
Frequently Asked Questions
Most collection centres accept walk-ins. Some may require a booking - check details when you click on your chosen location.
If your test needs fasting, we’ll include that in your instructions after you order. Fasting usually means no food for 8–12 hours, but water is fine.
Just your pathology referral form (we email it to you)
Of course. Just maybe don’t bring the friend who faints at the sight of blood.
They’re the highly trained professionals who take your blood sample - with a steady hand and a sharp needle. They love blood, but don’t worry… they’re not vampires. Just legends who make blood tests quick, clean, and (almost) painless.
Some of our tests include Urine, Stool, Saliva and more. Each test will have a clear description on what sample you will need to give and instructions on how.
