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Newark, NJ
A 48-year-old male asked:

What can cause a high ft4 (4.85 ng/dl) a low hematocrit (38.7%) and a low total iron binding capacity (277 ug/dl) on a blood test? rest of test in normal limits.

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 34 years experience
Talk with the doctor: A patient should talk with his ordering doctor, because his doctor is the person who knows what the lab results are, why the tests were ordered, what the results mean, whether or not anything needs to be done, etc... Anyway, an elevated FT4 thyroid hormone usually means hyperthyroid symptoms. His doctor may order more tests to find out why the thyroid is overactive (increasing one's metabolism).
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Last updated Dec 17, 2019


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