Free T4 is the active form of thyroxine hormone that enters your tissues where it’s needed. Thyroxine is produced by your thyroid which control the way your body uses energy. These hormones affect your weight, heart, body temperature, muscle strength, and even your mood. A T4 test is used to check how well your thyroid is working
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Overview:
Free T4 is the active form of thyroxine hormone that enters your tissues where it's needed. Thyroxine is produced by your thyroid which control the way your body uses energy. These hormones affect your weight, heart, body temperature, muscle strength, and even your mood. A T4 test is used to check how well your thyroid is working
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