What Are Normal Thyroid Levels?

What is a normal TSH level in a woman?

TSH normal values are 0.5 to 5.0 mIU/L.

Pregnancy, a history of thyroid cancer, history of pituitary gland disease, and older age are some situations when TSH is optimally maintained in different range as guided by an endocrinologist.

FT4 normal values are 0.7 to 1.9ng/dL..

What is a high thyroid level?

High TSH levels can mean your thyroid is not making enough thyroid hormones, a condition called hypothyroidism. Low TSH levels can mean your thyroid is making too much of the hormones, a condition called hyperthyroidism.

Is a TSH level of 1.7 normal?

Any reading above the range is considered hypothyroid, in the traditional western model and below the range is diagnosed as hyperthyroid. I utilize a more functional range of 1.8 – 3.0. TSH will usually be below 0.08 with hyperthyroidism. Depressed TSH between 1.0 and 1.7 is usually due to pituitary hypofunction.

Is a TSH level of 3.9 normal?

Predicting Thyroid Dysfunction When Baseline TSH Is “Normal” In women, risk for hypothyroidism increases substantially when TSH level is 2.5 to 4.5 mIU/L. … However, hypothyroidism eventually developed in 9% and 15% of those with baseline TSH levels of 3.0–3.9 and 4.0–4.5 mIU/L, respectively.

What should your TSH level be?

TSH levels typically fall between 0.4 and 4.0 milliunits per liter (mU/L), according to the American Thyroid Association. Ranges between laboratories will vary with the upper limit being between 4 to 5. If your level is higher than this, chances are you have an underactive thyroid.

What does a TSH level of 0.9 mean?

When these hormone levels are low, TSH levels are high, indicating potential hypothyroidism. The thyroid gland weighs less than an ounce, but affects all of the body’s systems. The Diagnosis: Subclinical Hypothyroidism. When Dr. Nasr measured Michelle’s free T4 level, it was 0.9 nanogram/deciliter.

Is TSH 4.5 normal?

The typical range of reference for TSH levels is anywhere between 0.45 and 4.5 milliunits per liter (mU/L) . A recent study suggests that the normal range should be more like 0.45 to 4.12 mU/L. TSH can vary wildly based on your age, sex, and stage of life.

How do I know if my thyroid levels are normal?

The TSH test measures the level of thyroid-stimulating hormone in your blood. The TSH has a normal test range between 0.4 and 4.0 milli-international units of hormone per liter of blood (mIU/L). If you show signs of hypothyroidism and have a TSH reading above 2.0 mIU/L, you’re at risk for progressing to hypothyroidism.

What are normal t3 and t4 levels?

A normal T3 level might be somewhere between 100 to 200 nanograms per deciliter (ng/dL), while a normal T4 level falls between 5.0 to 12.0 micrograms per deciliter (μg/dL). Free T4, which tests for the amount of T4 that is available in the body, should range between 0.8 to 1.8 nanograms per deciliter (ng/dL).

Is a TSH level of 0.8 normal?

Normal. If your TSH is between 0.45 and 4.5 mU/L, you have normal thyroid function and do not need treatment. Subclinical hypothyroidism. If your TSH is elevated (above 4.5 mU/L) and the amount of available (free) T4 is normal (0.8–2.0 ng/dL), you have subclinical hypothyroidism.

Is a TSH level of 3.5 normal?

My TSH levels were 3.5, which was, according to the lab, within the normal range of 0.35 to 5.5. “This says the TSH is normal,” I said. My doctor begged to differ. “If you were pregnant or trying to get pregnant, we’d medicate you at 3.5,” she said.

Is 3.2 TSH normal?

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 2.5 mIU/L. The TSH range may also vary slightly based on the testing facility where your blood is being analyzed.

How do I read my TSH results?

Normal and Abnormal TSH Ranges0.4 mU/L to 4.0 mU/L is considered the reference range (there may be a slight variation depending on the laboratory), and people who have a normally functioning thyroid gland usually fall within this range.If TSH measures > 4.0 mU/L, a second test (T4) is performed to verify the results.More items…•

What is a normal t4 level for a woman?

Typical results for the total T4 test in adults generally range from 5.0 to 12.0 micrograms per deciliter (μg/dL). Results for children vary based on age.

What is the normal range for TSH and t4?

A normal range for TSH in most laboratories is 0.4 milliunits per liter (mU/L) to 4.0 mU/L. If your TSH is higher than 4.0 mU/L on repeat tests, you probably have hypothyroidism. Your doctor may also order a T4 test. Most of the T4 in your blood attaches to a protein, and when it does, it can’t get into your cells.