Exam 3 Flashcards
main adrenal problems
cushing’s, addison’s, hyperaldosteronism
what occurs in cushing’s syndrome?
increase in adrenal hormones
causes of cushing’s
- excess corticosteroids
- ACTH-secreting pituitary adenoma
- tumors
manifestations of cushing’s
buffalo hump, moon face, striae on stomach, weight gain, increased BG, muscle wasting, thin hair and skin, acne, male characteristics in females (hair on body), female characteristics in males (gynecomastia)
treatment of cushing’s
- decrease corticosteroids
- surgery to remove tumor
what occurs in addison’s disease?
decrease in adrenal hormones
addison’s is a _______ disease
autoimmune
causes of addison’s disease
- all 3 corticosteroids are decreased (glucocorticoids, mineralocorticoids, androgens)
- pituitary disease or suppression
manifestations of addison’s disease
weight loss, hyperpigmentation of skin, cold intolerance, weak, fatigued, orthostatic hypotension, anorexia, nausea, abdominal pain, diarrhea, headache, salt craving, joint pain, depression, irritability
addisonian crisis
sudden decrease in hormones due to stress, sudden withdrawal of steroids, adrenal surgery or pituitary gland destructions
manifestations of addisonian crisis
- decreased BP, increased HR
- dehydrated: decreased Na+ and increased K+
- decreased BG
- fever
- weakness, confusion
treatment of addison’s
lifelong hormone therapy (hydrocortisone)
when should hormone therapy be increased?
when stressed
when should hormone therapy be taken and why?
in the AM due to GI upset
causes of hyperaldosteronism
- Na+ retention
- K+ and hydrogen ion excretion
manifestations of hyperaldosteronism
HTN with hypokalemic alkalosis
treatment of hyperaldosteronism
- surgical removal of adenoma
- K+ and diuretics
main thyroid problems
- graves disease
- hypothyroidism
graves’ disease
increased thyroid hormone
graves’ is an ____________ disease
autoimmune
causes of graves’
- toxic nodula goiter
- thyroiditis
- increased iodine intake
- pituitary tumors
- thyroid cancer
manifestations of graves’
goiter, exopthalamous, weight loss, clubbing of fingers, anxiety, palpitations, tremors
treatment of graves’
- antithyroid meds
- radioactive iodine
- surgery
thyrotoxic crisis/thyroid storm
increased thyroid hormone is released from stressors or being on meds for hypothyroidism
manifestations of thyroid storm
- increased HR, HF, shock
- hyperthermia
- agitation, delirium, seizures
- abdominal pain, vomiting, diarrhea
- coma
what occurs in hypothyroidism
- decreased thyroid hormone
- slow metabolic rate
causes of hypothyroidism
- iodine deficiency
- destruction of thyroid tissue
- defective hormone synthesis
- pituitary disease with decreased TSH
- hypothalamic dysfunction with decreased TRH
manifestations of hypothyroidism
- tired, lethargic, neuro changes
- weight gain
- decreased CO
- decreased exercise tolerance, SOB
- increased cholesterol and triglycerides
- cold and dry skin, hair loss, cold intolerance
- constipation
treatment of hypothyroidism
- low calories
- levothyroxine lifelong
myxedema
severe, longstanding hypothyroidism
manifestations of myxedema
- alters physical appearance
- puffiness, periorbital and facial edema
- mask-like effect
what can myxedema lead to?
myxedema coma
what is myxedema coma precipitated by?
infection, drugs, cold, trauma
type 1 DM
no insulin from pancreas; need to give a lot of insulin
type 2 DM
diet, exercise, etc. are factors
normal BG
60-100
most common manifestations of DM
polyuria, polydipsia, polyphagia
goal of an A1C
< 7.0%
who is HHS more common in?
type 2 diabetics
causes of HHS
UTIs, newly diagnosed type 2, sepsis, acute illness, pneumonia
manifestations of HHS
- increased BG (>600) leading to neuro problems: coma, somnolence, seizures, hemiparesis, aphasia ~ looks like a stroke
- lethargic
- decreased BP, increased HR
- peeing a lot (can’t replace fast enough), BUN and creatinine increased
- no or little ketones
treatment of HHS
- immediate IV insulin and NaCl (be careful with large volume fluids, they might have HF or kidney issues)
- when BG reaches about 250, start IV dextrose to prevent hypoglycemia
who is DKA more common in?
type 1 diabetics
DKA characteristics
- increased BG
- ketosis
- acidosis
- dehydration
causes of DKA
- illness
- infection
- inadequate insulin dosage
- undiagnosed type 1
- lack of education
how do ketones form in DKA?
since body can’t use glucose for energy, it breaks down fat instead -> ketones -> ketosis -> acidosis
manifestations of DKA
- increased HR, orthostatic hypotension
- dehydration
- lethargic, weak
- anorexia, N/V
- acetone, sweet fruity breath
- kussmaul RR