Apollo Diagnostics | NABL-Certified Lab | No Fasting Required | Digital Reports on WhatsApp
What is a Thyroid Profile (T3, T4, TSH) Test?
The Thyroid Profile (T3, T4, TSH) is a comprehensive blood panel used to evaluate how well your thyroid gland is functioning. This small butterfly-shaped gland in your neck acts as the master controller of your metabolism. The test measures three critical markers — T3 (Triiodothyronine), T4 (Thyroxine) and TSH (Thyroid-Stimulating Hormone). Together these results reveal whether your thyroid is overactive (hyperthyroidism), underactive (hypothyroidism) or functioning optimally.
✓ No fasting required — The Thyroid Profile can be done at any time of day. However a morning sample is preferred for the most consistent TSH readings. If you are on thyroid medication, your doctor may advise skipping your dose until after your blood is drawn.
Understanding T3, T4 and TSH
What each marker tells your doctor:
- TSH (Thyroid-Stimulating Hormone) — produced by the pituitary gland. TSH rises when the thyroid is underactive (hypothyroidism) and falls when it is overactive (hyperthyroidism). TSH is the most sensitive single marker for thyroid function.
- T4 (Thyroxine) — the main hormone produced by the thyroid gland. Low T4 with high TSH confirms hypothyroidism. High T4 with low TSH confirms hyperthyroidism.
- T3 (Triiodothyronine) — the active form of thyroid hormone. T3 is converted from T4 in the body's tissues. Elevated T3 with low TSH is the hallmark of hyperthyroidism including T3 toxicosis.
The Importance of Thyroid Health Monitoring
Thyroid hormones influence almost every cell in your body — from your heart rate to your internal temperature:
- Metabolic Regulation — Helps diagnose why you might be experiencing unexplained weight gain or weight loss
- Energy & Mood — Investigates the root cause of chronic fatigue, lethargy, anxiety or depression
- Hormonal Balance — Vital for women experiencing irregular menstrual cycles or fertility challenges
- Treatment Tracking — Essential for patients already on thyroid medication to ensure dosage is correctly calibrated
- Pregnancy Monitoring — Thyroid disorders during pregnancy can affect fetal brain development and require close monitoring
Normal Thyroid Profile Reference Ranges
| Marker | Normal Range | Unit |
|---|---|---|
| TSH | 0.4 – 4.0 | mIU/L |
| T3 (Total) | 0.8 – 2.0 | ng/mL |
| T4 (Total) | 5.1 – 14.1 | mcg/dL |
| TSH in Pregnancy (1st trimester) | 0.1 – 2.5 | mIU/L |
| TSH in Pregnancy (2nd trimester) | 0.2 – 3.0 | mIU/L |
| TSH in Pregnancy (3rd trimester) | 0.3 – 3.0 | mIU/L |
Reference ranges vary slightly by laboratory. Your doctor will interpret your results in the context of your symptoms and medical history.
Hypothyroidism vs Hyperthyroidism — Key Differences
| Feature | Hypothyroidism (Underactive) | Hyperthyroidism (Overactive) |
|---|---|---|
| TSH | High | Low |
| T3 & T4 | Low | High |
| Weight | Weight gain | Weight loss |
| Energy | Fatigue, sluggishness | Anxiety, restlessness |
| Heart rate | Slow | Rapid or irregular |
| Skin & hair | Dry skin, hair loss | Sweating, fine hair |
| Common cause | Hashimoto's thyroiditis | Graves' disease |
When is a Thyroid Profile Recommended?
Your doctor may recommend a Thyroid Profile if you experience:
- Unexplained weight gain or weight loss
- Persistent fatigue or weakness
- Feeling unusually cold or unusually hot
- Hair loss or dry skin
- Irregular or absent menstrual periods
- Fertility problems or recurrent miscarriage
- Rapid heartbeat or palpitations
- Anxiety, irritability or depression
- Swelling in the neck (goitre)
- Constipation or diarrhea
- Monitoring thyroid medication dosage
- Routine screening during pregnancy
Thyroid Profile Test Price in Kolkata
Thyroid Profile (T3, T4, TSH) Test Price: ₹620
No fasting required | Morning sample preferred | Free home collection above ₹2,000
No fasting required | Morning sample preferred | Free home collection above ₹2,000
Tests Commonly Ordered Alongside Thyroid Profile
- Anti-TPO (Thyroid Peroxidase Antibodies) — screens for autoimmune thyroid conditions like Hashimoto's thyroiditis and Graves' disease
- FT3 & FT4 (Free T3 and Free T4) — measures the unbound active fractions of thyroid hormones for more precise assessment
- Anti-Thyroglobulin Antibodies — another autoimmune marker for thyroid disorders
- CBC (Complete Blood Count) — thyroid disorders can affect red blood cell production
- Lipid Profile — hypothyroidism can cause elevated cholesterol
- Vitamin D & B12 — commonly deficient alongside thyroid disorders
Home Collection for Thyroid Profile Test in Kolkata
Apollo Diagnostics provides home blood sample collection for Thyroid Profile tests across North and Central Kolkata. No fasting is required. Our phlebotomists arrive at your doorstep with sterile single-use equipment. Samples are processed using Chemiluminescence Immunoassay (CLIA) technology at our NABL-certified central laboratory.
- Home collection available: 7:00 AM – 2:30 PM Daily
- No fasting required — book any time
- Morning sample preferred for most consistent TSH readings
- Free home collection on orders above ₹2,000
- Digital reports delivered to WhatsApp within 24 hours
Quick Links
→ Apollo Diagnostics Nagerbazar → Full List of Individual Tests → Book Home Collection → Full Body Checkup Packages
→ Apollo Diagnostics Nagerbazar → Full List of Individual Tests → Book Home Collection → Full Body Checkup Packages
Frequently Asked Questions
Q1. What is the Thyroid Profile test used for?
The Thyroid Profile (T3, T4, TSH) is used to evaluate thyroid gland function. It diagnoses hypothyroidism and hyperthyroidism, monitors thyroid medication dosage, investigates unexplained weight changes, fatigue, hair loss and menstrual irregularities, and screens for thyroid disorders during pregnancy.
Q2. What are the normal TSH, T3 and T4 levels?
Normal TSH is 0.4–4.0 mIU/L. Normal Total T3 is 0.8–2.0 ng/mL. Normal Total T4 is 5.1–14.1 mcg/dL. TSH is the most sensitive single marker — it rises in hypothyroidism and falls in hyperthyroidism. Reference ranges vary slightly by laboratory and your doctor will interpret results in context of your symptoms.
Q3. Does the Thyroid Profile test require fasting?
No. The Thyroid Profile does not require fasting. However a morning blood draw is preferred as TSH levels show natural variation throughout the day and are most consistent in the morning. If you are on thyroid medication your doctor may advise skipping your dose until after your blood is collected.
Q4. What is the Thyroid Profile test price at Apollo Diagnostics Kolkata?
The Thyroid Profile (T3, T4, TSH) test price at Apollo Diagnostics is ₹620. We use CLIA technology for accurate hormonal measurement. Home collection is available free on orders above ₹2,000.
Q5. What is the difference between TSH only test and Thyroid Profile?
A TSH-only test measures just the pituitary signal and is sufficient for routine monitoring of known hypothyroidism on stable medication. A full Thyroid Profile (T3, T4, TSH) gives a complete picture of both the pituitary signal and the actual thyroid hormone output — making it more useful for initial diagnosis, investigating symptoms or assessing treatment after a dosage change.
Q6. Can thyroid disorders cause weight gain?
Yes. Hypothyroidism (underactive thyroid) is a common cause of unexplained weight gain. When the thyroid produces insufficient hormones, the body's metabolism slows down, leading to weight gain, fatigue, constipation and cold intolerance. Treating hypothyroidism with thyroid hormone replacement typically helps restore normal metabolism and allows weight management to become more effective.
Q7. Why is thyroid testing important during pregnancy?
Thyroid hormones are critical for fetal brain development, especially in the first trimester when the baby cannot yet produce its own thyroid hormones. Both hypothyroidism and hyperthyroidism during pregnancy increase the risk of miscarriage, preterm birth, low birth weight and developmental problems. TSH targets during pregnancy are stricter than for non-pregnant adults — making regular monitoring essential.
Q8. Is home collection available for Thyroid Profile test in Kolkata?
Yes. Apollo Diagnostics provides home blood sample collection for Thyroid Profile tests across Dum Dum, South Dum Dum, Nagerbazar, Satgachi, Baguiati, Lake Town, Bangur, Kaikhali, Sealdah, Entally, Phoolbagan, Tangra and surrounding areas. No fasting required. Book by calling or WhatsApping +91 8660434628.
Q9. How long does it take to get Thyroid Profile test results?
Thyroid Profile test results are typically available within 24 hours of sample collection. Reports are delivered digitally to your WhatsApp or email.
Q10. Which centre processes my Thyroid Profile sample in Kolkata?
All samples collected across North and Central Kolkata are processed at Apollo Diagnostics Nagerbazar — Nandarani Apartment, 8A Narasingha Avenue, Nagerbazar, Dum Dum, Kolkata 700074. Our lab is NABL-certified and ISO-certified, using CLIA technology for hormone testing.
No comments:
Post a Comment