4th Year Thyroid Flashcards
examples of iatrogenic causes of hyperthyroidism
amiodarone (full of iodine)
levothyroxine
contrast medium
how long does it take carbimazole to work?
6 weeks so use propranolol for symptom management
exogenous causes of thyrotoxicosis
iodine excess
contrast media
drugs
postpartum
risk in using RAI in active hyperthyroidism?
risks thyroid storm
complications in thyroidectomy
parathyroids
laryngeal nerve palsy (hoarse voice)
main RF for Grave’s eye disease
smoking
management of Grave’s eye disease
artificial tears sunglasses avoid dust elevate bed when sleeping to reduce periorbital oedema steroids surgical decompression
do neoplasms/ cancers tend to be euthyroid?
yes
what does RAI require the patient to do?
isolate
use own cutlery
use contraception as do not want to get pregnant
management of thyroid storm
beta blockers
PTU
hydrocortisone if likely Addison’s aswell
why is PTU first line in thyroid storm?
more rapid onset than carbimazole
what condition to consider in myxoedema coma?
Addison’s
how often are TFTs done when on levothyroxine?
every 6 months
what kind of receptor does T3 and T4 bind to?
nuclear receptor
what conditions should thyroid function be considered in?
AF hyperlipidaemia DM amiodarone lithium Down's Turner's Addison's
