What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your Free T4 level means for your energy, metabolism, and overall health. These notes include personalized recommendations like dietary changes, supplement suggestions, or whether you should consider follow-up testing with a thyroid specialist. You'll also get the standard lab report and can track your thyroid levels over time using our trends feature to see how lifestyle changes or treatments are working.

Who should consider getting this test?

This test is ideal for anyone experiencing unexplained fatigue, weight changes, mood issues, hair loss, or irregular periods. It's especially important if you have a family history of thyroid disease, are pregnant or trying to conceive, or have been previously diagnosed with a thyroid condition and need monitoring. People who feel their symptoms aren't improving despite lifestyle changes should also consider testing.

What symptoms indicate I may need this test?

Common symptoms that suggest you might benefit from this test include persistent tiredness despite adequate sleep, unexplained weight gain or difficulty losing weight, feeling unusually cold or hot, dry skin and hair, brain fog or difficulty concentrating, and mood changes like anxiety or feeling down. Physical signs can include puffy face, muscle weakness, slower heart rate, or changes in menstrual cycles.

How can I naturally support my thyroid function?

Supporting thyroid health starts with ensuring adequate iodine and selenium intake through foods like fish, eggs, Brazil nuts, and dairy products. Getting 7-8 hours of quality sleep, managing stress through yoga or meditation, and regular exercise can help balance thyroid hormones. Limiting processed foods, reducing excess soy consumption, and avoiding smoking can also support healthy thyroid function.

What is Free T4 and why does it matter?

Free T4 (thyroxine) is the unbound, active form of thyroid hormone that's available for your body to use immediately. It plays a crucial role in regulating your metabolism, heart rate, body temperature, and how your body uses energy. Unlike total T4, which includes both bound and unbound hormone, Free T4 gives a more accurate picture of how much thyroid hormone is actually available to affect your cells and tissues.

What does low Free T4 mean?

Low Free T4 typically indicates hypothyroidism, meaning your thyroid gland isn't producing enough thyroid hormone. This can cause symptoms like fatigue, weight gain, feeling cold, dry skin, constipation, and sluggish thinking. Low levels may be caused by thyroid gland problems, certain medications, iodine deficiency, or autoimmune conditions like Hashimoto's thyroiditis.

What does high Free T4 mean?

High Free T4 usually suggests hyperthyroidism, where your thyroid is overactive and producing too much hormone. This can lead to symptoms like unexplained weight loss, rapid heartbeat, anxiety, tremors, excessive sweating, and difficulty sleeping. Common causes include Graves' disease, thyroid nodules, or excessive thyroid medication dosage if you're already being treated.