Thyroid Disease Flashcards
3 main causes of hypothyroidism?
Primary: Hashimoto’s, iodine deficiency, meds (amiodarine)
Transient: post partum, thyroxine withdrawal
Secondary:hypopituitary, hypothalamic, TSH deficiency
thyroid nuclear scan useful in what?
hyperthyroid
thyroixine can increase metabolism of? bad how?
cortisol
bad if has addison’s disease
what 4 things decreases thyroxine absorption?
iron
calcium
antacids
cholestyramine
common mistakes in thyroid treatment?
checking or adjusting earlier than 6 week
nuclear scan for hypothyroidism
4 DDx for symptoms of hyperthyroidism?
caffeine excess
thyrotoxicosis
anxiety/panic attack
pulmonary/cardiac disorder
2 kinds of toxic nodular goitre?
multinodular
solitary adenoma
3 kinds of iodine-induced thyrotoxicosis?
contrast
naturopathic (too much iodine)
amiodarone
why would you take excess thyroxine purposefully?
weight loss
thyroid and eyes?
Thyroid stare
diplopia
redness
proptosis
how to confirm hyperthyroidism?
TSH receptor anti-bodies
T4 - elevated
TSH -Low
how to distinguish Graves’ and toxic nodular disease?
nuclear scan test
hyperthyroidism in elderly usu. symptom?
weight loss
2 antithyroid drugs?
carbimazole (not in preg)
propylthiouracil
b-blockers used why in graves?
symptoms
