Reverse T3
Standard Reference Range
See Lab Results
Optimal Cognitive Range
10–24 ng/dL
Clinical Significance
Inactive T3 form — elevated during illness, stress, or low-calorie states
Clinician Discussion
Often not included in basic screening panels; request if experiencing brain fog or related symptoms. Optimal ranges for cognitive performance may differ from standard laboratory ranges.
This information is for educational purposes only. Always consult with a qualified healthcare professional.