i-Screen Reverse T3 Check
Type
Blood Testing
Biomarkers
1
Duration
30 min
Results
7 days
Simple reverse T3 test to detect hormone imbalances despite normal thyroid test results.
Specialty biomarker testing measures advanced markers that go beyond standard blood panels to provide deeper insight into specific biological pathways. These tests are commonly used in functional and integrative medicine to identify root causes of symptoms, assess cellular health, and guide personalized treatment protocols. Markers like IGF-1 reflect growth hormone activity and aging, lipoprotein(a) reveals inherited cardiovascular risk invisible to standard lipid panels, and neurotransmitter profiles can explain mood and cognitive symptoms. Results enable highly targeted interventions that standard tests would miss.
Key Details
Who Is This For?
People working with functional or integrative medicine practitioners. Those seeking root-cause analysis beyond standard blood work. Longevity enthusiasts tracking advanced biomarkers. Anyone with persistent symptoms despite normal standard labs.
What's Included
Preparation Required
Fasting may be required depending on the specific marker. Follow your clinic's instructions. Some tests require morning samples for accurate results. Bring a list of all supplements — many affect these markers.
Biomarkers Tested
1An inactive form of T3 produced when the body converts T4. Elevated reverse T3 can occur during illness, stress, or caloric restriction and may indicate impaired thyroid hormone activation despite normal TSH levels.
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- Category
- Diagnostic
- Sample Type
- Blood draw / urine / saliva (test-specific)
- Duration
- 30 min
- Results
- 7 days
i-Screen
i-Screen is an Australian health service offering blood testing and analytics to help individuals understand and monitor their health through personalized online dashboards.
