TriIodothyronine Total


Overview of TriIodothyronine Total

What is TriIodothyronine Total?

The Triiodothyronine test is performed to detect and diagnose disorders of the thyroid gland including hypothyroidism and to evaluate the effectiveness of the treatment.

Sample Type

The sample type collected for TriIodothyronine Total is: Blood

Preparation for TriIodothyronine Total

  • Do not eat or drink anything other than water for 8-12 hours before the test.

Why Get Tested for TriIodothyronine Total?

The test is performed when TSH levels are abnormal but with normal T4 levels. It is also done when hypothyroidism symptoms appear, including:
• Increase in heart rate
• Weight loss
• Anxiety
• Weakness
• Sleeping difficulty
• Hand tremors
• Sensitivity to light and visual disturbances
• Puffiness around eyes, irritation, dryness, and bulging of eyes in some cases

What Results of TriIodothyronine Total mean?


The normal ranges of T3 are:
Adults (more than 20yrs): 80-200 ng/dL
• 0-5 days: 73-288 ng/dL
• 6 days-2 months: 80-275 ng/dL
• 3-11 months: 86-265 ng/dL
• 1-5 years: 92-248 ng/dL
• 6-10 years: 93-231 ng/dL
• 11-19 years: 91-218 ng/dL
Greater values indicate hyperthyroidism, while lesser values indicate hypothyroidism.

Provided By



For over a hundred years, human pathology has been one of the keystones of medicine and rightly so at SRL, we offer our patients world-class Pathology services because their well-being is of the utmost importance to us. Pathology is quite simply the scientific study of the overall response of your body to any foreign influence, i.e., disease. Actually, we use this knowledge to diagnose & subsequently treat your ailment. What we basically do is carefully compare the normal structure and function of a human body (anatomy and physiology) to the abnormal structure and function we witness in an unwell human. Doing this is the most crucial phase & we take note of even the minutest details while adjudging the extent of your ailment because one slip can lead to an incorrect diagnosis, posing serious threat to your health. Our experts ensure that they are extremely careful while analyzing the samples. This is where our advanced technology chips in. SRL is proud to host state-of-the-art equipments based on the latest technology for a speedy and accurate result. We do not take any chances whatsoever with your health & well-being. Avail our Pathology services with no hesitation. You are always in good hands with SRL.

Available at Other Labs