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T4
Formal name: thyroxine Alternative FT4, Free Thyroxine Related tests: TSH, T3, FT4, FT3
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At A Glance
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Why get tested?To diagnose hypothyroidism or hyperthyroidism in adults When to get tested?It has largely been replaced by measurement of FT4 but may still be is measured in response to an abnormal TSH test result Sample required?A blood sample taken from a vein in the arm
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This page was last modified on May 10, 2008 |
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