NURS 8022 ADVANCED PATHOPHYSIOLOGY EXAM 4
-2025|130QS&AS|| UNIVERSITY OF CINCINNATI
What are the mechanisms of hormonal alterations?
1. Failure of feedback systems
2. Dysfunction of an endocrine gland
3. Altered hormone inactivation or degradation
4. Ectopic hormone release
5. Target cell dysfunction
What can cause failure of feedback systems in hormonal regulation?
Failure to function properly or responding to inappropriate signals.
What are the consequences of dysfunction of an endocrine gland?
Inability to produce or obtain an adequate quantity of required hormone
precursors, inability to convert precursors to the active hormone, or
excessive/inadequate hormone production.
What is ectopic hormone release?
Hormone production at non-endocrine sites without feedback mechanisms.
,What is hormone insensitivity?
Failure of the target cell to respond to its hormone due to receptor-associated
disorders.
What are some receptor-associated disorders that can lead to hormone
insensitivity?
Decrease in the number of receptors, impaired receptor function, presence of
antibodies against specific receptors, and unusual expression of receptor
function.
What are intracellular disorders related to target cell dysfunction?
Inadequate synthesis of a second messenger, failure to produce the
anticipated hormonal response, and abnormal response to the second
messenger.
What is SIADH and what causes it?
Syndrome of inappropriate antidiuretic hormone secretion, characterized by
abnormally high levels of ADH, often due to ectopic secretion, surgery, or
certain cancers.
, What are the clinical manifestations of SIADH?
Euvolemic hypotonic hyponatremia, weight gain, headache, nausea/vomiting,
confusion, and potentially severe neurologic damage.
What sodium level indicates hyponatremia?
Sodium <135 mEq/L.
What is diabetes insipidus?
Insufficiency of ADH leading to polyuria and polydipsia, with partial or total
inability to concentrate urine.
What are the types of diabetes insipidus?
Neurogenic (central), nephrogenic (renal), and dipsogenic/psychogenic.
What characterizes neurogenic diabetes insipidus?
Insufficient amounts of ADH.
-2025|130QS&AS|| UNIVERSITY OF CINCINNATI
What are the mechanisms of hormonal alterations?
1. Failure of feedback systems
2. Dysfunction of an endocrine gland
3. Altered hormone inactivation or degradation
4. Ectopic hormone release
5. Target cell dysfunction
What can cause failure of feedback systems in hormonal regulation?
Failure to function properly or responding to inappropriate signals.
What are the consequences of dysfunction of an endocrine gland?
Inability to produce or obtain an adequate quantity of required hormone
precursors, inability to convert precursors to the active hormone, or
excessive/inadequate hormone production.
What is ectopic hormone release?
Hormone production at non-endocrine sites without feedback mechanisms.
,What is hormone insensitivity?
Failure of the target cell to respond to its hormone due to receptor-associated
disorders.
What are some receptor-associated disorders that can lead to hormone
insensitivity?
Decrease in the number of receptors, impaired receptor function, presence of
antibodies against specific receptors, and unusual expression of receptor
function.
What are intracellular disorders related to target cell dysfunction?
Inadequate synthesis of a second messenger, failure to produce the
anticipated hormonal response, and abnormal response to the second
messenger.
What is SIADH and what causes it?
Syndrome of inappropriate antidiuretic hormone secretion, characterized by
abnormally high levels of ADH, often due to ectopic secretion, surgery, or
certain cancers.
, What are the clinical manifestations of SIADH?
Euvolemic hypotonic hyponatremia, weight gain, headache, nausea/vomiting,
confusion, and potentially severe neurologic damage.
What sodium level indicates hyponatremia?
Sodium <135 mEq/L.
What is diabetes insipidus?
Insufficiency of ADH leading to polyuria and polydipsia, with partial or total
inability to concentrate urine.
What are the types of diabetes insipidus?
Neurogenic (central), nephrogenic (renal), and dipsogenic/psychogenic.
What characterizes neurogenic diabetes insipidus?
Insufficient amounts of ADH.
