Adrenal & Thyroid Disorders Flashcards
The adrenal cortex is the outer part of the adrenal gland. It secretes more than 50 steroid hormones, which are classified as ______, ______, and ______.
Glucocorticoids
Catacholamines are ______ that are released as a response to stress that include epinephrine (75%), norepinephrine (25%), and dopamine (?)
Mineralocorticoids
The term ______ refers to any of the hormones synthesized by the adrenal cortex.
Neurotransmitters
The glucocorticoid cortisol (Hydrocortisone) helps maintain vascular integrity and fluid volume. It also helps regulate blood glucose concentration but is mainly given to patients for its ______ properties.
Anti-inflammatory
______ is a mineralocorticoid that maintains extracellular fluid volume by promoting reabsorption of sodium, excretion of potassium and hydrogen.
Aldosterone
Androgens like dehydroepiandosterone (DHEA) play a role in ______ growth and development.
Pubertal
Cushing syndrome is a spectrum of clinical abnormalities caused by an excess of ______.
Corticosteroids
The ______ form is created by excessive production of ACTH (Cushings disease).
Pituitary
The ______ form is caused by excessive cortisol secretion from benign or malignant adrenal tumors.
Adrenal
The ______ form is caused by an ACTH secreting tumor from carcinoma of the long, G.I. tract, or pancreas.
Non-Pituitary
Cushing syndrome can result from high doses of ______.
Corticosteroids
The primary goal for treatment of Cushing’s is to ______ hormone secretion. This can be done by drug treatment, ______ if the cause is by adrenal type, ______ resection or radiation therapy if it is caused by a pituitary adenoma, removal of tumor if it is caused by an ectopic ____ secreting tumor, or a change or discontinuation in exogenous ______ therapy.
Normalize Adrenalectomy Transsphenoidal ACTH Corticosteroid
Adrenocortical insufficiency (in which all three classes of adrenal corticosteroids is reduced) from a primary cause is known as ______ disease.
Addison’s
The most common cause of this disease is an ______ response. Other causes include TB, infarction, fungal infections (histoplasmosis), AIDS, and metastatic cancer.
Autoimmune
A disorder of the ______ system results and secondary adrenocortical insufficiency. This disorder causes a lack of pituitary ACTH secretion (glucocorticoids and androgens low and mineralocorticoids normal)
Hypothalamus-Pituitary-Adrenal (HPA)