TSH is the screen; free T4 and T3 tell the fuller story.
The Basics
T4 is the storage hormone the thyroid makes; T3 is the active form tissues use. TSH from the pituitary drives production.
Reading the Pattern
High TSH with low T4 means underactive; low TSH with high T3/T4 means overactive; mixed patterns need an endocrinologist.
When Nodules Appear
Ultrasound and sometimes biopsy follow, Clinic-Y partner endocrinology teams complete the workup within days.
Talk to Clinic-Y
As an independent healthcare facilitation agency, Clinic-Y matches your case with accredited partner hospitals in Istanbul, provides a written all-inclusive quote and coordinates every step. Send your records for a free specialist review, and we reply within 24 hours.