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Clinical Endocrine & Thyroid Decoder

Thyroid Report Analyzer & Clinical TFT Decoder

Check your TSH, Free T3, Free T4, Total T3 & T4 levels with live color-coded indicators, Hypo vs Hyperthyroid classification, pregnancy trimester reference ranges, causes, and Thyronorm medication rules in Hindi & English.

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Medically Reviewed & Verified by SaathiMed Endocrinology & Metabolism Board
Standard Diagnostic Guidelines: Indian Thyroid Society (ITS), American Thyroid Association (ATA) & ICMR Guidelines | Last Updated: September 2026
5 Thyroid Hormones & Antibodies
Pregnancy Trimester Specific Targets
Automatic Clinical Diagnosis Engine
100% Free & Secure
Clinical Condition:
In Normal Range ✅
0
Subclinical / Borderline ⚠️
0
Abnormal / Overt 🚨
0
TSH Range Target 🎯
0.40 - 4.50
Endocrine Staging Engine

Overall Thyroid Function Classification

Enter your TSH and Free T4 or Total T4 below to evaluate whether your thyroid gland is functioning normally (Euthyroid), underactive (Hypothyroid), or overactive (Hyperthyroid).

Pending
Endocrine State
Enter TSH Value

1. Master Thyroid Hormone (TSH)

Primary Screening Marker
TSH (Thyroid Stimulating Hormone) Most Sensitive
Pituitary hormone that commands the thyroid gland to produce metabolic hormones
Normal Range: 0.40 - 4.50 µIU/mL
µIU/mL
Pending
Hyperthyroid (<0.4) Normal (0.4-4.5) Subclinical (4.5-10) Overt Hypo (>10)
0.1 0.4 4.5 15.0+
TSH High (> 4.5) = Hypothyroidism (सुस्त थायरॉइड)
Jab thyroid gland kam hormone banata hai, toh brain (pituitary) chillata hai aur zyada TSH bhejta hai.
  • Laxan (Symptoms): Vajan badhna (weight gain), thakan, baal jhadna, thand zyada lagna, kabz (constipation), chehre par soojan, irregular periods.
  • Ilaaj: Daily subah khali pet Levothyroxine tablet (Thyronorm, Eltroxin).
TSH Low (< 0.4) = Hyperthyroidism (तेज थायरॉइड)
Jab thyroid gland zaroorat se zyada hormone ugalne lagta hai, toh brain TSH bhejna band kar deta hai.
  • Laxan: Achanak tezi se vajan ghatna (weight loss), garmi na jhel pana, ghabrahat, hath kaanpna, dil ki tezi (palpitations).

2. Active Circulating Hormones (T3 & T4)

Effector Hormones
Free T4 (Free Thyroxine - FT4)
Unbound active thyroxine hormone circulating directly to body tissues
Normal Range: 0.80 - 1.80 ng/dL
ng/dL
Pending
Low (Hypo) Normal High (Hyper)
0.4 0.8 1.8 2.8+
Free T3 (Triiodothyronine - FT3)
Most metabolically potent active thyroid hormone converted in liver and tissues
Normal Range: 2.30 - 4.20 pg/mL
pg/mL
Pending
Low Normal High
1.0 2.3 4.2 6.0+

3. Total Hormone Panels & Autoimmune Markers

Routine 3-in-1 Tests
Total T4 (Thyroxine)
Total circulating thyroxine including protein-bound portion
Normal Range: 4.8 - 11.6 µg/dL
µg/dL
Pending
Low Normal High
2.0 4.8 11.6 18.0+
Total T3 (Triiodothyronine)
Total bound and unbound T3 measured in standard routine packages
Normal Range: 80.0 - 200.0 ng/dL
ng/dL
Pending
Low Normal High
40 80 200 300+
Anti-TPO Antibodies (Thyroid Peroxidase) Autoimmune Check
Detects Hashimoto's thyroiditis where body's own immune system attacks thyroid cells
Normal / Negative: < 35.0 IU/mL
IU/mL
Pending
Negative (<35) Positive Autoimmune (≥35)
0 35 100 300+
Medical Caution & Clinical Disclaimer: This interactive tool is intended solely for educational interpretation of thyroid profiles based on American Thyroid Association (ATA) guidelines. Thyroid levels can fluctuate during illness, pregnancy, medication changes, or biotin supplement intake. Always consult a qualified Endocrinologist or physician before altering your medication dosage.

Complete Patient Guide to Thyroid Function Tests (TFT)

The Thyroid Gland is a butterfly-shaped endocrine organ positioned at the base of your neck. It produces hormones that govern metabolism, body temperature, heart rate, mood, and how efficiently your body burns calories.

Complete Thyroid Reference Ranges

Test Parameter Standard Adult Range 1st Trimester Pregnancy Clinical Significance
TSH 0.40 - 4.50 µIU/mL 0.10 - 2.50 µIU/mL Primary indicator of pituitary-thyroid feedback loop
Free T4 (FT4) 0.80 - 1.80 ng/dL 0.80 - 1.50 ng/dL Active unbound thyroxine available to body tissues
Free T3 (FT3) 2.30 - 4.20 pg/mL 2.30 - 4.00 pg/mL Potent tissue metabolic hormone
Total T4 4.8 - 11.6 µg/dL Higher (Pregnancy raises TBG) Measures total thyroxine including bound reserve
Anti-TPO < 35 IU/mL < 35 IU/mL Diagnoses Hashimoto's Autoimmune Thyroiditis

Hypothyroidism vs Hyperthyroidism: Key Differences

Feature Hypothyroidism (Underactive) Hyperthyroidism (Overactive)
Hormone State High TSH, Low Free T4 Low/Suppressed TSH, High Free T4/T3
Weight Change Unexplained Weight Gain Rapid Weight Loss despite normal appetite
Temperature Cold intolerance (Thand lagna) Heat intolerance (Paseena zyada aana)
Energy & Mind Lethargy, brain fog, depression Anxiety, restlessness, insomnia, tremors
Heart Rate Slow pulse (Bradycardia) Rapid heart pounding (Tachycardia/palpitations)

Golden Rules for Taking Levothyroxine (Thyronorm / Eltroxin)

  1. Strict Empty Stomach: Take your tablet immediately upon waking with a full glass of water. Do NOT take it with milk or tea.
  2. Wait 45 - 60 Minutes: Allow at least 45 to 60 minutes before having your morning tea, coffee, or breakfast. Food reduces medicine absorption by up to 40%.
  3. Separate Mineral Supplements: Calcium tablets, Iron supplements, and antacids bind to thyroxine. Keep a strict gap of at least 4 hours between them.
  4. Avoid Biotin for 48 Hours before Blood Test: High-dose Vitamin B7 (Biotin hair supplements) causes false test readings in laboratory immunoassay machines.

Frequently Asked Questions (FAQs)

Clinically verified answers to patient queries regarding normal ranges, report interpretation, and lifestyle management.

What is the normal range for TSH (Thyroid Stimulating Hormone) in adults?
What is the difference between Subclinical and Overt Hypothyroidism?
Kya Thyroid test subah bina dawai khaye karwana chahiye?
TSH low (< 0.4 mIU/L) hone ka kya matlab hai?
Free T3/T4 aur Total T3/T4 me kya antar hota hai?
Pregnancy me TSH control me rakhna kyu bohot zaroori hota hai?
Hypothyroidism me wazan kaise kam karein?
SaathiMed Thyroid Analyzer kaise guide karta hai?