THE PURSER WELLNESS REFERENCE
Understand your lab vocabulary.
Compare Dr. Purser’s adult ranges with your own report. Units, symptoms and health history matter when you discuss a result with your clinician.
10 entries
Free T3 — lab reference
Useful in selected hyperthyroid states; not a sensitive stand-alone test for hypothyroidism.
Thyroid Function and Thyroid AutoimmunityFree T4 — lab reference
Binding abnormalities and severe illness may affect some free-hormone assays.
Thyroid Function and Thyroid AutoimmunityReverse T3 — lab reference
No broadly accepted treatment target. Dr. Purser to define whether and how this is used.
Thyroid Function and Thyroid AutoimmunityThyroglobulin — lab reference
This is not a general thyroid wellness target. It may be used for follow-up after certain thyroid conditions, alongside thyroid anatomy and antibody results.
Thyroid Function and Thyroid AutoimmunityThyroglobulin antibody (Tg Ab) — lab reference
The test method matters. Also affects thyroglobulin tumor-marker interpretation.
Thyroid Function and Thyroid AutoimmunityThyroperoxidase antibody (TPO Ab) — lab reference
The test method matters. Positive result supports thyroid autoimmunity but does not determine treatment alone.
Thyroid Function and Thyroid AutoimmunityTotal T3 — lab reference
Affected by binding proteins and nonthyroidal illness.
Thyroid Function and Thyroid AutoimmunityTotal T4 — lab reference
Affected by thyroid-binding globulin, pregnancy, estrogen, and medications.
Thyroid Function and Thyroid AutoimmunityTSH — lab reference
Adult interval. Pregnancy and pituitary disease require different interpretation.
Thyroid Function and Thyroid AutoimmunityTSI / TRAb — lab reference
Ask your clinician to use the exact assay cutoff. Helpful in selected Graves disease questions.
