Flashcards in Endocrine - Thyroid Deck (13):
Most common cause of hypothyroidism? Other, less common causes?
Hypothyroidism is characterized by a slowing down of almost all bodily processes except for?
Menstrual flow (increased)
Treatment of hypothyroidism?
#If TSH over 10 with normal T4, replace hormone
#If TSH 5-10, send serum antibodies (anti-thyroid peroxidase anti-thyroglobulin). If positive, replace hormone
Patient with suspected hypothyroidism – best first test? Second test?
TSH; free T4
Only thyroid disorder with eye/skin abnormalities?
Thyroid disorder with tender thyroid? (Treatment?)
Nontender thyroid with normal physical exam? (Treatment?)
Subacute thyroiditis (ASA)
Painless "silent" thyroiditis (supportive)
Hyperthyroidism with nonpalpable, involuted gland?
Exogenous thyroid hormone use
Only hyperthyroid disease with elevated TSH?
Only thyroid disease with elevated radioactive iodine uptake? Confirmatory test?
Graves' disease; positive antibody testing (to TSH receptor)
Treatment of thyroid storm?
#Propranolol – for symptoms and inhibition of peripheral conversion of T4 to T3
#Methimazole >propylthiouracil (blocks hormone production)
#Iodinated contrast – blocks peripheral conversion of T4 to T3 and blocks release of existing hormone
#Radioactive iodine – oblates gland for permanent cure
Treatment for Graves ophthalmopathy? If fails? If that fails?
Steroids. If no response, radiation
If no response, decompressive surgery
Pt presents with thyroid nodule. Next steps?
1. TSH and T4
2. If normal, FNA