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About Beth , MT (ASCP) (5)
Expertise
I can answer questions about the purpose of a certain lab test and what an abnormal result could indicate. I cannot make a diagnosis.

Experience
I recently earned my BS degree in clinical laboratory science. I did rotations in medical laboratories as a student.

Publications
allexperts.com

Education/Credentials
I have a BS in clinical laboratory science, with a minor in chemistry. I am certified with the American Society of Clinical Pathologists.

You are here: Experts > Health/Fitness > Women's Health > Lab Tests > Thyroid

Lab Tests - Thyroid

Expert: Beth , MT (ASCP) (5) - 10/1/2008

Question
What is the normal range of T4, free in a thyroid test?

Answer
Nonda,

It can range from 0.8-1.5 ng/dl. In other labs, I've seen it range from 0.7-2.1 ng/dl. So it really depends on the lab. I'd suggest asking the lab where you are getting the test for their reference range, if they don't supply it with your test results.

- Beth

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