TSH decreased

TSH decreased is a topic covered in the Diagnosaurus.

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Etiology

  • Primary hyperthyroidism, eg, Graves’ disease, toxic multinodular goiter, toxic nodule, subacute thyroiditis, early Hashimoto’s disease
  • Thyroid hormone administration
  • Severe nonthyroidal illness
  • Dopamine or dopamine agonists (levodopa, bromocriptine)
  • Pregnancy
  • hCG-secreting trophoblastic tumor
  • Acute psychiatric illness
  • Acute glucocorticoid administration
  • Other drugs, eg, NSAIDs, amphetamines, octreotide, opioids, nifedipine, verapamil
  • "Subclinical" hyperthyroidism: low TSH, clinically euthyroid, normal T4, common in elderly (10%), risk of atrial fibrillation and osteoporosis

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Last updated: December 1, 2014

Citation

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TY - ELEC T1 - TSH decreased ID - 114306 A1 - Zeiger,Roni F, Y1 - 2014/12/01/ BT - Diagnosaurus UR - https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114306/all/TSH_decreased PB - McGraw-Hill Education ET - 4 DB - Emergency Central DP - Unbound Medicine ER -