Preparation instructions
Morning sample preferred. Inform the lab about thyroid medicines.
Assesses thyroid hormone levels and thyroid-stimulating hormone.
Morning sample preferred. Inform the lab about thyroid medicines.
TSH commonly 0.4-4.0 mIU/L; ranges vary by method and lab.
Reference ranges can vary by lab method, age, sex, pregnancy status, and clinical condition. Always consult a qualified doctor for interpretation.