thyroid Flashcards
needed to make thyroid hormone
iodine
list the thyroid hormones & functions
T3 stimulator
T4 stabilizer
calcitonin takes serum calcium and brings into the bone for storage
when does thyroid screening start?
at age 35
best way to see if someone’s hyperthyroid medication is working how it should
lookg at T3 levels
T3 resin uptake
give patient radioactive material contain iodine; looks for open sites
what percents are abnormal T3 resin uptake values
< 25% hypothyroidism
> 35% hyperthyroidism
thyroid antibodies
specifically looking at autoimmune disorders
what conditions are thyroid antibodies 100% positive in?
hashimoto thyroiditis
graves disease
chronic autoimmune
serum thyroglobulin
specific to thyroid cancer
radioactive iodine uptake scan
looks for hot and cold area
hot= HYPERthyroidism
cold= cancer–> biopsy performed
what info does nurse need to know before radioactive iodine uptake scan
if the patient is taking iodine OTC or prescription because it can cause inaccuracy
most common causes of hypothyroidism
hashimoto disease
types of hypothyroidism
primary: thyroid
secondary: TSH
tertiary: TRH
neonatal: congenital at birth
myxedema coma
severe hypothyroidism
- hypotension
- bradycardia
- hypothermia
- decreased RR
hypothyroid treatment
synthroid, levothyroxine, levoxyl
glucocorticoids
synthroid, levothyroxine, levoxyl
thyroid replacement
on empty stomach if PO
take slowly if IV
thyroid replacement nursing considerations
if myxedema coma= IV
if IV too fast= possible adrenal insufficiency–> take steroids
watch for cardiac events
glucocorticoids
check cortisol, TSH, T4
what is thyroid replacement dosage based on?
TSH level
what to avoid with hypothyroidism?
hypnotics & sedatives
magnesium antacids
digitalis
anticoagulants
most common cause of hyperthyroidism
graves disease
who is more likely to have hyperthyroidism?
women 8x more likely than men
classic manifestations of hyperthyroidism
exophthalmos
goiter
hyperthyroidism treatment
radioactive iodine therapy
medication
thyroidectomy/subtotal thyroidectomy
radioactive iodine therapy nursing considerations
avoid pregnancy, lactation, and close contact
watch for thyroid storm & iodine toxicity
hyperthyroid medications are first line therapy
PTU
methimazole
SSKI
dexamethasone
thyroidectomy nursing considerations
watch for hypothyroidism
watch for thyroid storm
watch for post op complications
biggest concerns for post op thyroidectomy patient
AIRWAY blockages
stridor
bleeding
thyroid storm symptoms
high fever
tachycardia
altered mental status
exaggerated symptoms of hyperthyroidism
