PATHOPHYSIOLOGY EXAM 4 UTA
QUESTIONS WITH ANSWERS
2026.
pituitary gland - correct answer- The endocrine system's most
influential gland. Under the influence of the hypothalamus, the
pituitary Is MASTER GLAND and regulates growth and controls
other endocrine glands. ACTH, TSH and ADH important in this
unit.
ACTH - correct answer- Adrenocorticotropic hormone-
stimulates the action of adrenal gland to secrete glucocorticoids
like cortisol.
ADH - correct answer- antidiuretic hormone (vasopressin) that
works on Kidney and smooth muscles. Part of RAAS. Causes
vasoconstriction and reabsorption of H2O
TSH - correct answer- thyroid stimulating hormone that acts on
the thyroid gland. Stimulates T3, T4, calcitonin and Thyroxine.
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Diabetes Insipidus - correct answer- 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.
diabetes insipidus etiology - correct answer- Two possible
1. Kidneys no longer respond to ADH
2. Brain no longer secretion or lessening of secretions (maybe
tumor or edema)
SIADH - correct answer- syndrome of inappropriate hyper
antidiuretic hormone. That causes excess retention of water
resulting in BP increase (increased stroke volume), generalized
edema.
SIADH etiology - correct answer- 1. Drugs--> especially
anesthetics
2. Trauma; brain tumor etc...
3. Neoplastic disease ; ectopic production of hormone
T3 and T4 function - correct answer- metabolism
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Calcitonin function - correct answer- Lowers blood calcium
levels by triggering uptake in bones.
Hyperthyroidism - correct answer- excessive activity of the
thyroid gland that can be due to cancer autoimmune dz or
overactive pituitary.
Hyperthyroidism autoimmune - correct answer- Grave's dz
Hyperthyroidism labs - correct answer- T3, T4 and and TSH
S/S of hyperthyroidism - correct answer- Same as
hypermetabolism... agitated, exopthalmus, nervous, diarrhea,
hot, ^HR, ^BP, thin, hyperactive etc.goiter
thyrotoxic crisis - correct answer- aka Thyroid storm- toxic
condition characterized by hyperthermia, tachycardia, nervous
symptoms, and rapid metabolism.