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T4T4
01

T4

2021-09-01

Increase:

  • Hyperthyroidism
  • Various thyroiditis
  • Elevated serum TBG

 

 

Decrease:

  • Primary or secondary hypothyroidism
  • Decreased serum TBG
  • Inhibition of T4 to T3 factors (low T3 syndrome)

 

 

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FT4FT4
02

FT4

2021-09-01

  • Used to judge thyroid function, more sensitive than T4, and the measured value is not affected by TBG
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T3T3
03

T3

2021-09-01

Increase:

  • Hyperthyroidism
  • High iodine reserve
  •  High TBG
  •  Thyroiditis

Decrease:

  • Hypothyroidism
  • Lowered serum TBG
  • Iodine deficiency
  • Severe liver and kidney disease
  • Other systemic diseases

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TSHTSH
04

TSH

2021-09-01

Increase:

  • Primary hypothyroidism
  • TSH secretory tumor
  • Iodine-deficiency endemic goiter
  • Thyroid hormone resistance syndrome, etc.

 

Decrease:

  • Primary hyperthyroidism
  • TSH gene mutations
  • Various thyroiditis damage stages
  • Various pituitary diseases affecting TSH cell function
  • Clinical application of high-dose glucocorticoids, etc.

 

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FT3FT3
05

FT3

2021-09-01

  • Judging thyroid function, more sensitive than T3, and the measured value is not affected by TBG
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