What happens after I get my results?

You'll get easy-to-understand doctor notes that explain your thyroid function and how it relates to symptoms like fatigue or weight changes. The notes provide actionable guidance on diet, supplements, or when to follow up with an endocrinologist. Along with your standard lab report, you can use our trends feature to monitor your thyroid levels over time, especially helpful if you're on medication or making lifestyle adjustments.

When will I get my results?

You can expect your results within approximately 7 business days from when your sample reaches the lab. In some cases, if confirmation testing is needed to ensure accuracy, the turnaround time may be slightly extended. You'll be notified as soon as your results are available through your secure online account.

Who should consider getting this test?

This test is ideal for anyone experiencing unexplained weight gain or loss, chronic fatigue, mood changes, or temperature sensitivity. It's also important for people with a family history of thyroid disease, women who are pregnant or trying to conceive, and anyone already being treated for thyroid conditions who needs accurate monitoring. If you've had abnormal TSH results, this Free T4 test provides more detailed information about your thyroid function.

What symptoms indicate I may need this test?

Common symptoms include unexplained weight changes despite normal eating habits, persistent tiredness even after adequate sleep, feeling unusually cold or hot, mood swings or feeling down, difficulty concentrating or brain fog, and changes in heart rate. You might also notice dry skin, hair loss, constipation, or muscle weakness. If you're experiencing several of these symptoms together, it could indicate a thyroid issue worth investigating.

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 enough quality sleep, managing stress through yoga or meditation, and exercising regularly can help balance thyroid hormones. Limiting processed foods, reducing exposure to environmental toxins, and maintaining a healthy weight also support optimal thyroid function.

What is Free T4 and why does it matter?

Free T4 (free thyroxine) is the active, unbound form of the thyroid hormone T4 that's available to your body's cells. It's responsible for regulating your metabolism, which affects your weight, energy levels, body temperature, and even your mood. When Free T4 levels are too high or too low, it can cause a wide range of symptoms that significantly impact your daily life and overall health.

What does high Free T4 mean?

High Free T4 typically indicates an overactive thyroid (hyperthyroidism), meaning your thyroid is producing too much hormone. This can cause symptoms like unexplained weight loss, rapid heartbeat, anxiety, trouble sleeping, feeling hot, and increased sweating. Common causes include Graves' disease, thyroid nodules, or taking too much thyroid medication. If your Free T4 is high, your doctor may recommend additional testing and treatment to bring levels back to normal.