6. Are there any other symptoms she is likely experiencing that are not listed here?

7. What do you think is the underlying cause of all these symptoms in Barbara? What is wrong with her?

8. A TRH stimulation test involves measuring basal TSH levels and then measuring again after an injection of TRH. This test is often not necessary for thyroid patients, but would it be beneficial in diagnosing Barbara’s condition? Explain why or why not.

9. Some patients with thyroid or thyroid hormone problems develops goiter. List two possible causes of this goiter

10. Barbara does not have a goiter at the moment. If her condition continues unchecked will she developed one?