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From Mary Shomon Your Thyroid Guide


Clinical Chemists Issue Revised Thyroid Testing Guidelines

from Mary J. Shomon

The National Academy of Clinical Biochemistry has issued new Laboratory Medicine Practice Guidelines for thyroid testing, and the new guidelines should be of interest to thyroid patients -- and practitioner.

Among other recommendations, two highlights:

  • The guidelines state that the upper TSH limit will likely be reduced to 2.5, because more than 95% of all people with normal thyroid function have a TSH of .4 to 2.5
  • Between .5 and 2.0 is the optimal target TSH for hypothyroid patients
Print these guidelines for your endocrinologist and practitioner!

See the detailed guidelines information.



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