Pathophysiology Flashcards
anterior pituitary growth hormone disorders
hypersecretion-gigantism, acromegaly
hyposecretion- dwarfism
iatrogenic
induced by medical treatments like chemo, radiation therapy, or surgical removal, beta blocker, chronic hormone replacement therapy
Acromegaly in adults, gigantism in children
increase in frontal sinuses, ring/shoe size, deepened voice and enlarged tongue. Treatment is GH replacement therapy.
pituitary dwarfism
hypoglycemia, growth 3%, dental delayed, thin hair and greater fat mass.
Adults have hypercholesterolemia, decreased bone density and body mass
Posterior pituitary of ADH diseases
hyposecretion- diabetes insipidus
hypersecretion- Syndrome of inappropriate ADH secretion, adrenal insufficency and Hypothyrodism
Diabetes inspidus
not enough ADH, too much water leaves the body, constant thirst and urination. Causes the 3 poly (polyuria, nocturia, high Na in blood)
SIADH
more water, less Na, increase bp
Hypothyroidism causes
primary failure of thyroid gland, secondary to a deficiency of TRH, TSH, or both, not enough iodine, cretinism, congenital, Hashimoto
Myxedema (in hypothyroid state)
thickening, non-pitting edematous changes in the soft tissues. coma is rare and life-threatening condition occurring in progression of Hypothyroidism. Treatment is thyroid hormone replacement
Cretinism
hypothyroid disorder, caused by untreated congenital thyroid hormone deficiency. Causes stunted growth mentally and physically, abnormal bone development myxedema- might have goiter
hyperthyroidism causes
thyroid nodules for excess hormone secretion called hot nodules. It feels hot and might lose weight even though they are eating more. Solution is surgery removal, iodine ( radioactive) to shrink thyroid.
Grave’s disease
hyperthyroidism disorder, enlarged thyroid ( goiter) producing too much thyroid hormone, women are likely to get disease, runs in the family, only a small amount produces too much as most doesn’t produce enough.
Thyroid storm
life threatening thyrotoxicosis, when excessive amounts of thyroid hormone is released. It triggers radioactive iodine therapy, emotional stress, uncontrolled diabetes. It increases heart rate, arrhythmia, CHF, temperature, extreme restless, agitation.
Treatment includes cooling with ice packs. BUT don’t induce shivering
Hyperparathyrodism
increase in calcitonin, bone deformity and fractures, Calcium stones in urinary tract.
Causes kidney stones, osteoporosis, dehydration, high serum calcium levels, decrease neuromuscular excitability
hypoparathyrodism
severe muscle tetany due to low calcium levels, too much claw like hands, numbness, cramps, spasms, seizures