What Causes TSH Level High?

TSH or thyroid stimulating hormone is a hormone produced in the anterior pituitary gland. This is used to help stimulate the thyroid to produce triiodothyronine (T3) or thyroxine (T4), hormones that help stimulate the metabolism. If your pituitary gland is producing TSH trying to stimulate the thyroid but the thyroid does not respond, it can result in high TSH level in the bloodstream. This can be caused by stress, illness, an obstruction or surgery causing the thyroid to malfunction or be sluggish.

What Is a TSH Test?

A TSH test is a lab test that analyzes your blood to determine the body's overall TSH levels. If you begin to show signs of a malfunctioning thyroid, your doctor my order a test to check for the TSH levels in your system. If the resutls show a high level of TSH, you may have a sluggish thyroid, but low levels of TSH signal that your thyroid may be overactive.

During a TSH test, your doctor will take a blood sample to check the hormone levels. A needle will be placed in a sterilized are of your arm, then attached to a tube to collect the blood. After this is finished, the needle is removed and you will be asked to put pressure and a bandage on the site to stop the bleeding. In some cases, an elastic band may be placed around the arm to make it easier to collect the blood. You should not feel a great deal of pain from the elastic band or the needle, though you may develop a bruise at the injection site.

Your doctor will be focusing on the two hormones that control the metabolism, triiodothyronine (T3) and thyroxine (T4). Results of the TSH test are typically available 2-3 days after the test is given. If you have high TSH or low TSH, your doctor will explain what may be going wrong and what you can do treat this condition.

What is the Normal Range of TSH?

There are a range of levels that your TSH levels can be. Learning what these levels mean will help you work with your doctor to address your condition adequately.

Conditions That Cause TSH Level High 

Once it is determined that you have excessive levels of TSH in your system, your doctor will start narrowing down what is causing the trouble.

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