Understanding Thyroid Profile Free (FT3, FT4 & TSH) at Curis Life, Andheri West
The thyroid gland is a small, butterfly-shaped organ located in the neck that produces hormones such as thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in regulating metabolism, body temperature, energy production, and overall growth.
The release of T3 and T4 is controlled by the thyroid-stimulating hormone (TSH), which is secreted by the pituitary gland.
The Thyroid Profile Free (FT3, FT4 & TSH) test measures the free or unbound (active) forms of these hormones — FT3 and FT4 — that circulate in the bloodstream and are available for use by the body. It helps assess how effectively the thyroid gland is functioning and whether there are signs of an overactive or underactive thyroid.
When Is This Test Recommended?
Doctors at Curis Life Clinic, Andheri West, may recommend this test if symptoms suggest a thyroid imbalance such as hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid).
Common symptoms of hypothyroidism include:
- Weight gain
- Fatigue or low energy
- Sensitivity to cold
- Constipation
- Dry skin
- Anxiety or depression
- Heavy or frequent menstrual periods
Common symptoms of hyperthyroidism include:
- Weight loss
- Sensitivity to heat
- Nervousness or irritability
- Hand tremors
- Excessive sweating
- Rapid heartbeat
- Hair loss
- Irregular or lighter menstrual periods
This test is also recommended for pregnant women to ensure adequate thyroid hormone levels, as thyroid balance is essential for fetal brain development and overall pregnancy health.
Preparation Before the Test
- No special preparation is required for this test.
- You usually do not need to stop thyroid medications before testing unless your doctor advises otherwise.
- Inform your doctor about all medications, supplements, or herbal products you are taking, as some may interfere with thyroid hormone levels.
Understanding Your Results
Laboratory values may vary depending on the testing method and standards used.
Interpretation of results requires medical expertise because thyroid hormones and TSH are interrelated:
- In hypothyroidism, FT3 and FT4 levels are low, and TSH levels are elevated (the pituitary gland works harder to stimulate the thyroid).
- In hyperthyroidism, FT3 and FT4 levels are high, and TSH levels are suppressed (the pituitary reduces stimulation to balance excess hormone).
Always consult your doctor at Curis Life, Andheri West, to correctly interpret your report and plan an appropriate treatment strategy. Avoid self-medication, as thyroid regulation requires professional monitoring.
What Does the Thyroid Profile Free (FT3, FT4 & TSH) Measure?
Contains 3 Tests
The Thyroid Profile Free (FT3, FT4 & TSH) at Curis Life measures:
- Free Triiodothyronine (FT3) – Active form of T3 hormone responsible for energy regulation and metabolism.
- Free Thyroxine (FT4) – Active form of T4 hormone that supports metabolic rate and growth.
- Thyroid Stimulating Hormone (TSH) – Produced by the pituitary gland to regulate thyroid hormone secretion.
Together, these tests help determine whether your thyroid gland is functioning properly, identify disorders like hypothyroidism or hyperthyroidism, and guide ongoing management or treatment.
