Thyroid Complete Blood Work Panel

Thyroid Complete Blood Work Panel

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Thyroid Complete Blood Work Panel 


This thyroid panel includes 5 blood tests to evaluate function of the thyroid gland and the hormones involved with energy expenditure and storage.  Each hormone plays a significant role in metabolic function, involving caloric output, body temperature and heart rate.  The expanded thyroid panel may be used to help diagnose hypothyroidism (underactive thyroid) or hyperthyroidism (overactive thyroid function).


Thyroid Complete Blood Work Panel includes:


  • T3 uptake
  • T4
  • T7
  • TSH
  • T3 total

T3 uptake—The Triiodothyronine (T3) uptake test is used to evaluate thyroid-binding protein saturation in the blood.  This test is usually performed as a result of abnormal levels of thyroid hormones previously tested.


T4— Thyroxine (T4) produces specific enzymes necessary for proper organ, heart and cellular function.  T4 circulates within the blood. 


T7— This test is used in part to determine the relationship between T4 and T3 uptake test levels.


TSH— Thyroid-stimulating hormone (TSH) essentially signals the thyroid gland to produce thyroxine (T4), and triiodothyronine (T3), which trigger metabolic function. 


T3 total—Triiodothyronine (T3) total evaluates the level of thyroid hormone in the blood, both attached to proteins and free floating.




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