Thyroid

The thyroid gland controls metabolism, energy, and weight. TSH, T3, and T4 blood tests show whether it is underactive or overactive.

Tests That Check Your Thyroid

Test
TSH

The master signal that controls your thyroid gland.

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Test
T3

One of the two active thyroid hormones.

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Test
T4

The main hormone your thyroid gland produces.

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Report Terms to Know

High Low Borderline Nodule

Specialists Who Can Help

Specialty
Endocrinology & Diabetology

Endocrinologists and diabetologists manage hormones and diabetes. Key tests include fasting and post-meal suga…

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Disclaimer: This information is for patient education only and does not replace medical advice, diagnosis, or treatment. Always consult a qualified doctor.