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23 Οκτ 2023 · In adults, normal levels of total T4 range from 5–12 micrograms per deciliter (mcg/dl) of blood. Normal levels of free T4 range from 0.8–1.8 nanograms per deciliter (ng/dl) of blood.
3 Οκτ 2022 · In general, normal ranges of free T4 for healthy people include: Children up to 5 years old : 0.8 – 2.8 nanograms per deciliter (ng/dL). Children 6 to 15 years old : 0.8 – 2.1 ng/dL.
25 Οκτ 2019 · Typical results in adults for the free T4 test generally range from 0.8 to 1.8 nanograms per deciliter (ng/dL). Like total T4 in adults, free T4 also varies in children according...
3 Οκτ 2023 · The reference range has a high and low value between which results are considered normal. Values near the upper or lower limit are borderline, while anything outside of these limits is considered abnormal.
This test measures the level of T4 in your blood. Too much or too little T4 can indicate thyroid disease . The T4 hormone comes in two forms: Free T4, which enters the body tissues where it's needed; Bound T4, which attaches to proteins, preventing it from entering body tissues; A test that measures both free and bound T4 is called a total T4 test.
Normal Range. The normal range for free T4 in adults is 4.6 to 11.2 micrograms per deciliter (mcg/dL). A normal T4 test result means your thyroid gland works like it should. High or Low T4. A high T4 result could mean you have hyperthyroidism. A low T4 test result is a sign of hypothyroidism.
22 Μαρ 2023 · The normal range of TSH levels in adults is between 0.4 to 4.0 mIU/L (milli-international units per liter). Some research suggests that this range should actually be more like 0.45 to...
