What does it mean if your TSH is low but your T3 and T4 are normal?

A low TSH with normal free T4 and T3 levels is consistent with subclinical hyperthyroidism. Some patients with nodular goiter and Graves’ disease, particularly early in the disease course, will have predominant elevations in T3 due to increased conversion of T4 to T3 and a disproportionate increase in T3 secretion.

Can you have low TSH and high T4?

A low level of TSH and high levels of T3 and/or T4 usually means you have an overactive thyroid. Doctors may refer to these measurements as “free” T3 and T4 (FT3 and FT4).

Should I worry if my TSH is low?

Low TSH levels indicate hyperthyroidism. This is also known as an overactive thyroid. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH.

Can you still have hyperthyroidism with normal TSH levels?

Subclinical hyperthyroidism is when you have low levels of TSH but have normal levels of T3 and T4. If you’re experiencing symptoms of subclinical hyperthyroidism, your doctor can use a series of blood tests to come to a diagnosis.

How do you feel when your TSH is too low?

Fatigue, nervousness, restlessness, and weakness are common symptoms of low TSH. Muscle cramps may also occur due to low TSH. People with low TSH may be very sensitive to the heat and unable to tolerate it. A warm summer day for most people may be unbearably hot for those with low TSH.

What is a critical low TSH level?

In most instances, the normal TSH range is approximately 0.4-4.5 mIU/L. A low TSH level is between 0.1-0.4 mIU/L and a suppressed TSH level is one below 0.1 mIU/L. In determining treatment for SH, it is important to know whether the patient’s TSH is low or suppressed.

What is a normal range of T4?

Normal Results for T4 test. A typical normal range is 4.5 to 11.2 micrograms per deciliter (mcg/dL). Normal value ranges may vary slightly among different laboratories.

What should I do to get a normal TSH level?

One way to stimulate your pituitary gland and boost the levels of TSH is through daily exercises such as yoga, breathing exercises, and meditation . On the plus side, doing regular exercises can help balance your hormones and improve your overall health condition.

Is your free T4 really in the normal range?

Typical results in adults for the free T4 test generally range from 0.9 to 2.4 nanograms per deciliter (ng/dL). Like total T4 in adults, free T4 also varies in children according to age.

What causes low T4 levels?

In summary, there are numerous factors which can cause low T4 levels. Hashimoto’s Thyroiditis is the primary cause of hypothyroidism. Nutrient deficiencies can also play a role, including iodine, iron and tyrosine .