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What Is a T3 Test?
Your doctor will typically order a T3 test if he or she suspects a problem with your thyroid. These potential disorders include
Your thyroid and the hormones it releases affect much of your body’s function. This means that a thyroid disorder can cause a wide range of symptoms. For example, you might experience mental issues such as anxiety, or physical problems such as constipation and menstrual irregularity.
Other possible symptoms include
If you already have confirmation of a thyroid problem, your doctor might choose to order this test to see whether there have been any changes in your condition.
Sometimes, your doctor might also order a T4 test and/or a TSH test. T4, or thyroxine, is another hormone produced by your thyroid. TSH (thyroid stimulating hormone) is the hormone that stimulates your thyroid to produce T3 and T4. Testing the levels of either or both of these other hormones can help give your doctor a more complete picture of what’s going on.
Preparing for the T3 TestTell your doctor about all of the medications you are currently taking. Some might affect your T3 test results. If your doctor knows about your medications in advance, he or she can advise you to temporarily stop using them or will consider their effect when interpreting your results.
Medications that can affect your T3 levels include, but are not limited to
The T3 Test
What Is a T4 Test?
Your doctor will typically order a T4 test if he or she suspects a problem with your thyroid. These potential disorders include
Your thyroid and the hormones it releases affect much of your body’s function. This means that a thyroid disorder can cause a wide range of symptoms. For example, you might experience mental issues such as anxiety, or physical problems such as constipation and menstrual irregularity.
Other possible symptoms include
If you already have confirmation of a thyroid problem, your doctor might choose to order this test to see whether there have been any changes in your condition.
Sometimes, your doctor might also order a T4 test and/or a TSH test. T4, or thyroxine, is another hormone produced by your thyroid. TSH (thyroid stimulating hormone) is the hormone that stimulates your thyroid to produce T3 and T4. Testing the levels of either or both of these other hormones can help give your doctor a more complete picture of what’s going on.
Preparing for the T4 TestTell your doctor about all of the medications you are currently taking. Some might affect your T3 test results. If your doctor knows about your medications in advance, he or she can advise you to temporarily stop using them or will consider their effect when interpreting your results.
Medications that can affect your T4 levels include, but are not limited to
The T4 Test
What is Vitamin D?
Why Do You Need Vitamin D?
Supplementation Recommendations
Vitamin D DeficiencyThe following factors can affect your vitamin D levels:
Vitamin D dissolves in fat, and is stored in fat cells. Overweight people tend to have more vitamin D stored in fat rather than circulating in the blood. They may require higher doses of vitamin D3 to maintain optimal serum levels.