thyroid function 3

  1. The thyroid gland directly secretes about 20 percent of?
  2. T3 is responsible for what?
    most of the thyroid action in the body
  3. 80% of T3 comes from the conversion of?
  4. T3 is approximately _________ more potent than T4.
    4 times
  5. Measuring T3 may help diagnose?
  6. Testing for T3 is rarely used to determine?
  7. Measuring TSH is the most effective way to initially test for?
    thyroid function
  8. TSH is regulated by?
  9. TSH regulations happens only after _____ is converted to ______ in the _____________ cells.
    T4 ; T3 ; pituitary cells
  10. The measurement of ______ and ______ provide the most accurate assessment of thyroid function.
    T4 and TSH
  11. What are two common thyroid antibodies that damage the thyroid gland?
    • antithyroid peroxidase (anti-TPO)
    • antithyroglobulin (anti-TG)
  12. Measuring thyroid antibodies helps to diagnose the most common cause of ?
  13. Common Disorders of the Thyroid
    • Hypothyroidism - Hashimoto’s
    • Hyperthyroidism - Graves Disease
  14. Hypothyroidism occurs when the ?
    thyroid fails to produce adequate amounts of thyroid hormone
  15. Hypothyroidism is often present for a number of years before it is recognized
    and treated.
  16. A typical person with an underactive thyroid will have elevated ______ levels with _______________.
    TSH with low free T4
  17. The most common cause of hypothyroidism is ?
  18. Thyroiditis includes a group of individual disorders that cause?
    thyroidal inflammation resulting in different clinical presentations
  19. Hashimoto’s disease is the most common _________________________ disorder.
    autoimmune thyroid
  20. Hashimoto's increases with ______ and occurs more frequently in _______ or persons with a ______________ of ________________
    age; women; family history of thyroid disease
  21. Hashimoto’s disease typically targets women and is characterized by ?
    • high thyroid antibody titers
    • increased TSH
    • low free T4.
  22. What is the most effective treatment for Hashimoto’s disease?
    Synthetic T4 Levothyroxine --- can be prescribed with a wide range of doses
  23. What is used to treat low thyroid activity?
  24. What is used to treat or suppress different types of goiters?
  25. How should levothyroxine be taken?
    on an empty stomach approx 30 minutes before or two hours after meals.
  26. Space levothyroxine how long before/after other meds
    • Space at least four hours
    • including
    • iron, PNV, antacids which can impair absorption.
  27. What occurs when there is an overabundance of thyroid hormone being produced?
  28. A typical person with an overactive thyroid will have a _________________ and ________________.
    • decreased TSH
    • high free T4
Card Set
thyroid function 3
thyroid function 3