Thyroid Stimulating Hormone (TSH)

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What is the Lab Name for Thyroid Stimulating Hormone?

Thyroid Stimulating Hormone

What is the Lab Abbreviation for Thyroid Stimulating Hormone?

TSH

What is Thyroid Stimulating Hormone in terms of Nursing Labs?

Thyroid Stimulating Hormone (TSH) is released from the pituitary in response to low levels of thyroid hormone. TSH communicates to the thyroid gland to release the thyroid hormones: Triiodothyronine (T3) and Thyroxine (T4). Thyroid hormones regulate metabolism. T3 and T4 have and inverse relationship with TSH.

What is the Normal Range for Thyroid Stimulating Hormone?

2-10 mU/L

What are the Indications for Thyroid Stimulating Hormone?

  • Diagnose:
    • Hyperthyroidism
    • Hypothyroidism
  • Monitor thyroid replacement therapy

What would cause Increased Levels of Thyroid Stimulating Hormone?

  • Hypothyroidism
  • Thyroidectomy
  • Thyroid dysfunction
  • Thyroiditis
  • Thyroid Agenesis
  • Large doses of iodine
  • Pituitary TSH-secreting tumor

What would cause Decreased Levels of Thyroid Stimulating Hormone?

  • Pituitary hypofunction
  • Hyperthyroidism

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