Spirometry is a lung function test that measures how much air you can inhale and exhale, and how quickly you can do it.

Wear loose clothing, avoid heavy meals or intense exercise before the test, and follow any specific instructions from your doctor.

No, spirometry is non-invasive and painless. You will be asked to breathe into a device, which may feel slightly uncomfortable but is not painful.

The test itself takes about 15-30 minutes. Results are usually available immediately or within a few hours.

The frequency depends on your health conditions and doctor’s recommendations. It may be performed regularly for ongoing monitoring or as needed for diagnosis.

Normal ranges can vary slightly between laboratories, but generally, FT3 ranges from 2.0 to 4.4 pg/mL, FT4 ranges from 0.8 to 2.0 ng/dL, and TSH ranges from 0.4 to 4.0 mIU/L. Consult your healthcare provider for specific reference ranges.

Treatment depends on the type of thyroid disorder. Hypothyroidism is typically treated with synthetic thyroid hormone (levothyroxine), while hyperthyroidism may be managed with antithyroid medications, radioactive iodine, or surgery.

Yes, maintaining a balanced diet, managing stress, and avoiding iodine-deficient or excessive diets can help support thyroid health. Always discuss lifestyle changes with your healthcare provider.

The test involves a simple blood draw, which carries minimal risks such as slight bruising or discomfort at the puncture site.

The frequency depends on your health status and risk factors. Patients with known thyroid disorders may require regular monitoring, while others may need testing as part of routine health check-ups. Consult your healthcare provider for personalized advice.

Risks include infection, bleeding, changes in urinary function, and potential need for additional treatments or adjustments.