Hormone — Thyroid Axis
TSH (Thyroid Stimulating Hormone)
TSH is the pituitary signal that drives thyroid hormone production.
Reference range
Optimization target: 0.5–2.5 µIU/mL. Functional optimization context only — not a diagnostic assertion. Range varies by lab, age, and sex.
Why it matters
TSH is the screening marker for thyroid axis function. Subclinical thyroid dysfunction is common and strongly affects metabolism, energy, and mood. REVRCEL reads TSH with free T3 and free T4 rather than alone, because TSH-only screening can miss the actionable cases.
How REVRCEL clinicians read it
Pair with free T3 and free T4. TSH-only is not a complete thyroid workup.
Included in
- Core Bloodwork
- Hormone Optimization Panel
Common questions
Is TSH alone enough to screen the thyroid?
No. Pair with free T3 and free T4 to catch cases TSH-only misses.
Related biomarkers
Statements have not been evaluated by the FDA. This page is educational and is not medical advice.