Head and Neck Ultrasonography Laboratory Medicine

Updated: Aug 21, 2015
  • Author: Yuemi An-Grogan, MD; Chief Editor: Gowthaman Gunabushanam, MD, FRCR  more...
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Laboratory Medicine

Laboratory Medicine Summary

Thyroid-stimulating hormone, free T4, and parathyroid hormone testing are useful screening tests for patients with clinical concern for thyroid disease or hyperparathyroidism, respectively.