Exam 3 - alterations in regulation and metabolism Flashcards
what is the feedback mechanism?
- body sends message to hypothalamus
- hypothalamus stimulates the pituitary
- pituitary sends to primary
- primary releases hormone
what is the complex feedback mechanism
Cns receives stimulus
Hypothalamus releases
Inhibiting factor or
Releasing factor which travels to
Pituitary gland. when then sends hormone to
Target tissue
what gland can override others?
pituitary
what are the endocrine glands
pitutary thyroid parathyroid adrenals gonads pancreas hypothalamus
what does the thyroid control
metabolism and growth
what does the parathyroid control
calcium and phosphorus metabolism
what does the adrenals control
sodium, electrolyte balance, reproduction, immune, fight or flight
what does the hypothalamus control
hormones are releasing factors or inhibiting
what are the types of endocrine disorders?
primary seconday tertiary ectopic hypofunction hyperfunction
what is a primary endocrine disorder?
problem with gland itself in releasing or creating hormone
what is a secondary endocrine disorder?
problems with pituitary and releasing factors
tertiary endocrine disorder
problems with cellular receptors or cells themselves
ectopic endocrine disorder
tumor (other than normal site of hormone production)
intolerance to heat tremor sweating weight loss increase in appetite palpitations nervousness exopthalmia decrease in fluids and sex drive
hyperthyroidism (systems speed up except wt loss)
what is the autoimmune version of hyperthyroidism?
graves disease
what labs should be looked at for thyroid disorders?
t3, t4, TSH
if the thyroid is the problem(primary), what should the labs look like?
TSH would be decreased and t3 and t4 would be increased
nurse interventions for hyperthyroidism
increase calories
o2
cool down
treatment that stops t3 and t4 production
radioactive iodine
high fever disaphoresis restlessness agitation tachy, dysrhytmia and tremor CHF delirium coma
thyroid storm!
what causes a thyroid storm
acute stress
infection
surgery
how should you treat a thyroid storm symptoms?
sedation, cooling, steroids, IV fluids
what are the meds you should administer in a thyroid storm
strong iodine solutions
propylthiouracil
inderal (propranol) beta block
NO ASPIRIN
myxedema
mucousy edema - hard to get rid of