Abstract
Background: The thyroid status is evaluated by two clinical diagnostic tests which are thyroid ultrasonography and thyroid function tests. The objective of this research is to critically analyze the age and gender based variations of thyroid volume and thyroid hormone levels in the hospital based euthyroid subjects. Methodology: A total of 221 euthyroid subjects aged 1 - 86 years were selected to observe the normal thyroid size by ultrasonography at Department of Radiology and the thyroid function test values (FT3, FT4 and TSH) of 2413 euthyroid subjects aged (
Highlights
Thyroid hormones (TH) play the important role in the development and the maintenance of homeostasis through the interactions with autonomic nervous system and the regulations of cardiovascular and metabolic functions [1] [2]
A total of 221 euthyroid subjects aged 1 - 86 years were selected to observe the normal thyroid size by ultrasonography at Department of Radiology and the thyroid function test values (FT3, FT4 and Thyroid stimulating hormone (TSH)) of 2413 euthyroid subjects aged (
The thyroid USG of hospital based euthyroid subjects was performed at the Department of Radiology and the thyroid function tests (TFT) values were observed at the Department of Biochemistry, Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal during January 2017 to February 2018
Summary
Thyroid hormones (TH) play the important role in the development and the maintenance of homeostasis through the interactions with autonomic nervous system and the regulations of cardiovascular and metabolic functions [1] [2]. Thyroid stimulating hormone (TSH) is an important marker to diagnose thyroid status clinically. Many studies related to the age and gender based variations of serum free thyroid hormones (TH: FT3 and FT4) and TSH have uncertainties [3] [4] [5]. The objective of this research is to critically analyze the age and gender based variations of thyroid volume and thyroid hormone levels in the hospital based euthyroid subjects. The thyroid size in menarche and menopause periods of females is larger than that of males Such age- and gender-specific changes recommend the new reference ranges for the normal thyroid functions
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