Biomarkers

6 biomarkers tracked with reference ranges and optimal ranges

Category:
All (161) Cardiac (3) Coagulation (5) Electrolytes (3) Endocrine (1) Hematology (22) Hormone (16) Immunology (5) Inflammatory (5) Iron (1) Kidney (4) Lipid (8) Lipids (1) Liver (16) Metabolic (9) Mineral (12) Renal (1) Thyroid (6) Urinalysis (2) Urine_electrolyte (8) Urine_hematology (4) Urine_kidney (7) Urine_liver (2) Urine_metabolic (10) Urine_other (6) Vitamin (4)
Biomarker Category Unit Reference Range Optimal Range
Free T3 Thyroid pg/mL 2.3 – 4.2 3.0 – 4.0
Free T4 Thyroid ng/dL 0.8 – 1.8 1.1 – 1.5
Reverse T3 Thyroid ng/dL 9.2 – 24.1 9.2 – 15.0
TSH Thyroid mIU/L 0.4 – 4.0 1.0 – 2.5
Total T3 Thyroid ng/dL 80.0 – 200.0 100.0 – 180.0
Total T4 Thyroid μg/dL 4.5 – 12.0 6.0 – 10.0

Understanding Ranges

Reference range — the clinical "normal" range used by labs. Values outside this range are flagged as low or high.

Optimal range — a narrower band associated with better health outcomes in research. Values within reference but outside optimal are marked "suboptimal".

Always consult a healthcare provider for interpretation of your specific results.