Comprehensive Thyroid Hormone Testing
lets understand what's really happening with your thyroid
Test, don't guess.
If you suspect your thyroid to be at play, lets connect about getting the testing you need to answer the questions you've been asking.
If you're experiencing fatigue, hair loss, weight changes, brain fog, feeling cold, constipation, anxiety, changes in your menstrual cycle, or simply don't feel like yourself — your thyroid may be part of the picture.
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But understanding thyroid health isn't always as simple as checking your TSH.
A comprehensive thyroid assessment looks beyond a single thyroid marker to evaluate thyroid hormone production, conversion, autoimmune activity, and the nutritional and metabolic factors that can influence thyroid function.
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As a naturopathic doctor, I use comprehensive thyroid hormone testing alongside an in-depth assessment of your symptoms and health history to investigate why thyroid function may be disrupted in the first place.
Why test more than TSH?
TSH is an important thyroid marker, but it doesn't tell us everything about thyroid function.
Your thyroid is part of a larger system involving the brain, pituitary gland, thyroid gland, liver, kidneys, nutrients, metabolism and cellular receptors.
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Thyroid hormones must be produced, converted and utilized appropriately throughout the body.
For example, your thyroid primarily produces T4, which is considered a relatively inactive thyroid hormone. T4 must then be converted into T3, the more biologically active thyroid hormone.
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This means that looking at thyroid health involves more than asking:
"Is my TSH normal?"
Instead, we want to ask:
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Is your thyroid producing enough hormone?
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Are you converting thyroid hormone appropriately?
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Is there evidence of an autoimmune thyroid condition?
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Are nutritional deficiencies or metabolic factors affecting thyroid function?
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Could another underlying issue be contributing to your symptoms?
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A comprehensive thyroid panel can help us put these pieces together.
What is comprehensive thyroid testing?
Depending on your symptoms, health history and clinical presentation, testing may include:
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TSH
Thyroid-stimulating hormone provides information about the communication between your pituitary gland and
thyroid.
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Free T4
Free T4 helps assess the amount of circulating thyroxine available to your tissues.
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Free T3
Free T3 provides information about the active thyroid hormone available in circulation and can provide additional context when symptoms persist despite a normal TSH.
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Reverse T3
When clinically appropriate, reverse T3 may provide additional information about thyroid hormone conversion and the way your body is processing T4.
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Thyroid antibodies
Testing may include:
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Anti-TPO antibodies
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Anti-thyroglobulin (Anti-TG) antibodies
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TSI antibodies
These markers can help identify autoimmune thyroid activity, including patterns associated with Hashimoto's thyroiditis and Graves' disease.
thyroid health is about more than thyroid hormones
One of the biggest advantages of comprehensive testing is that it allows us to look at the factors surrounding your thyroid, rather than interpreting thyroid hormones in isolation.
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Depending on your presentation, additional testing may include:
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Nutrient status
Nutrients such as iron, selenium, zinc, vitamin D and B12 play important roles in overall thyroid and metabolic health.
Testing may help identify nutritional deficiencies or insufficiencies that could be contributing to fatigue, hair loss,
changes in metabolism or other symptoms.
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Iron & ferritin
Low iron stores can contribute to fatigue, hair loss and other symptoms that can overlap with hypothyroidism.
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Blood sugar & insulin
Thyroid health and metabolic health are closely connected. Depending on your symptoms, fasting glucose, fasting insulin and HbA1c may be assessed to evaluate blood sugar regulation and insulin resistance.
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Other hormones
For some patients, thyroid symptoms overlap with reproductive or adrenal hormone concerns. Depending on your presentation, additional hormone testing may be appropriate.
The goal is to determine which pieces of the puzzle are relevant to you, rather than ordering every possible test for every patient.
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Blood work is an essential part of evaluating thyroid function — but it is only one piece of the puzzle.
As a naturopathic doctor, I don't believe that the goal of thyroid care should simply be to get your blood work into the "normal" range.
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The goal is to understand why your thyroid may not be functioning optimally in the first place.
During your assessment, we look at your symptoms alongside your laboratory results and health history.
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This may include investigating:
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Nutritional deficiencies
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Iron deficiency or low iron stores
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Blood sugar dysregulation
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Chronic stress
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Digestive health
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Inflammation
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Autoimmune activity
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Hormonal changes
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Diet and lifestyle factors
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Medication and supplement use
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Thyroid hormone production and conversion
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This broader approach can help identify factors that may be contributing to thyroid dysfunction or preventing you from feeling your best.
