Exxcellence pearls: hypothyroidism Flashcards
1
Q
What is the incidence of hypothyroidism?
What is the leading cause worldwide?
What is the leading cause in the US?
A
5%
Iodine deficiency
Auto-immune Hashimoto’s thyroiditis
2
Q
What other causes are included on the differential of hypothyroidism?
A
Loss of thyroid function secondary to surgery or radioactive treatment for hyperthyroidism, lymphocytic thyroiditis, pituitary dysfunction, hypothalamic defects, medications such as methimazole, propylthiouracil, lithium, potassium iodide
2
Q
How often should TSH be checked when adjusting dose?
For long-term management?
A
Every 4-6 weeks
Annually
3
Q
What are possible side effects of levothyroxine overdose?
A
Palpitations, chest pain, myocardial infarction
