Pathophysiology EXAM 4 UTA with Complete Solutions
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Pathophysiology UTA
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Pathophysiology UTA
Pathophysiology EXAM 4 UTA with Complete Solutions
1. pituitary gland The endocrine system's most influential gland. Under
the influence of the hypothalamus, the pituitary Is MAS-
TER GLAND and regulates growth and controls other
endocrine glands. ACTH, TSH and ADH important in this
unit.
2. ...
Pathophysiology EXAM 4 UTA with Complete Solutions 1. pituitary gland The endocrine system's most influential gland. Under the influence of the hypothalamus, the pituitary Is MAS - TER GLAND and regulates growth and controls other endocrine glands. ACTH, TSH and ADH important in this unit. 2. ACTH Adrenocorticotropic hormone - stimulates the action of adrenal gland to secrete glucocorticoids like cortisol. 3. ADH antidiuretic hormone (vasopressin) that works on Kidney and smooth muscles. Part of RAAS. Causes vasoconstric - tion and reabsorption of H2O 4. TSH thyroid stimulating hormone that acts on the thyroid gland. Stimulates T3, T4, calcitonin and Thyroxine. 5. Diabetes In - sipidus 6. diabetes in - sipidus etiology Caused by hyposecretion of ADH which causes little to no reabsorption of H2O. Results in polyuria, increased thirst, high B osmolarity which results in general signs of dehydration. Two possible 1. Kidneys no longer respond to ADH 2. Brain no longer secretion or lessening of secretions (maybe tumor or edema) 7. SIADH syndrome of inappropriate hyper antidiuretic hormone. That causes excess retention of water resulting in BP increase (increased stroke volume), generalized edema. 8. SIADH etiology 1. Drugs --> especially anesthetics 2. Trauma; brain tumor etc... 3. Neoplastic disease ; ectopic production of hormone 9. T3 and T4 func - tion 10. Calcitonin func - tion metabolism Lowers blood calcium levels by triggering uptake in bones. Pathophysiology EXAM 4 UTA with Complete Solutions 11. Hyperthyroidism excessive activity of the thyroid gland that can be due to cancer autoimmune dz or overactive pituitary. 12. Hyperthyroidism autoimmune 13. Hyperthyroidism labs 14. S/S of hyperthy - roidism Grave's dz T3, T4 and and TSH Same as hypermetabolism... agitated, exopthalmus, ner- vous, diarrhea, hot, ^HR, ^BP, thin, hyperactive etc.goiter 15. thyrotoxic crisis aka Thyroid storm - toxic condition characterized by hy - perthermia, tachycardia, nervous symptoms, and rapid metabolism. 16. Tx Hyperthyroid: Thyroidectomy, meds -radioactive iodine or thioamide (in- hibits incorp of I into hormones) 17. Hypothyroidism etiology 18. Hypothyroidism autoimmune 19. Hypothyroidism S/S 20. Hypothroidism labs low levels of thyroid hormone due to hypoactive thyroid gland from congenital defect, removal or destruction of arts of the gland autoimmune, endemic iodine deficiency. Hashimotos Same as hypometabolism ie, tired, sluggish Cold intolerant obese decreased hr, p, rr low T3/T4 High TSH 21. Myxedema coma extreme hypothyroidism(abrupt med cessation), rare with a high mortality rate = decreased cardiac output leads to decreased tissue perfusion which leads to brain and organ depletion leading to multi -organ failure
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