Thyroid Gland Overview

The thyroid gland is a small butterfly shaped gland that is located above the Adams apple. The hormones thyroxine (T4) and triiodothyronine (T3) effect every cell in the body. The physiology of the thyroid hormone process is complex. Many nutrients, such as selenium and iodine play a crucial role in thyroid health. If even one of the several nutrients are missing the thyroid gland cannot function. This results in many systems in the body unable to do their tasks, from cardiac health to respiratory health and metabolic regulation to name a few. Without understanding the delicate interactions and nutrients required for a healthy thyroid, it is impossible to understand thyroid diseases and conditions.

Questions? Check out our FAQs page and How Online IV Certification Works!


Upon completion of this course, the participant will be able to:

  1. Explain the anatomy of the thyroid gland.
  2. Explain how tyrosine and iodine combine to make thyroid hormones.
  3. Discuss the hypothalamus pituitary negative feedback loop.
  4. Identify key nutrients needed by the thyroid.
  5. List thyroid lab tests done and what they determine.


Chapter 1: The Thyroid Gland and Its Function

  • Anatomy of the thyroid gland
  • Function of the thyroid gland
  • Hormones produced by the thyroid gland
  • Nutrients needed for proper functioning of the thyroid gland

Chapter 2: Labs for Thyroid Gland Function

  • Thyroid stimulating hormone (TSH)
  • Thyroid perioxidase (TPO)antibodies
  • Thyroglobulin
  • Thyroglobulin antibodies
  • Free T4
  • Free T3
  • Reverse T3
  • Radioactive iodine uptake test
  • Thyroid scan

Chapter 3: References

  • California Bill 241
  • Implicit Bias in Healthcare
  • What is Implicit Bias?
  • Implications of Implicit Bias in Healthcare
  • How to Reduce Implicit Bias

Price: $10.00

Contact Hour: 1

Course Author

Brooke Lounsbury

Brooke Lounsbury, RN, has over 26 years of experience as a nurse. Her primary field was in Home Health and Hospice until leaving mainstream nursing in 2008 to teach holistic health classes devoted to helping people empower themselves through education, public speaking engagements, classes, and coaching -online and in person.  Topics include digestive health, fermentation, sleep hygiene, and the effects of our technology (computers, wifi, cellphones, etc) on our health and traveled to Austria to receive further training and is an EMF consultant and home assessment mitigation expert.
Her latest project is her "Intro to Writing CE", a course to empower nurses on how to write a continuing education course!

She is available for writing course consultations, and can be reached at

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