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Patho Exam 3
Endocrine
28
Other
Undergraduate 3
11/05/2008

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Term
Primary Disorder
Definition
due to dysfunction of the target gland
Term
Secondary Disorder
Definition
due to dysfunction of the pituitary gland
Term
Tertiary Disorder
Definition
results from hypothalamus disorder
Term
Diabetes Insipidus
Definition
disease of posterior pituitary, kidneys produce abnormally large volumes of dilute urine
Term
Neurogenic Diabetes Insipidus
Definition
lack of ADH; could be due to tumor of posterior pituitary, trauma, genetic, 50% idiopathic. TX- Vasopressin:DDAVP
Term
Nephrogenic Diabetes Insipidus
Definition
inability of kidneys to respond to ADH; can be drug induced or genetic. TX - eliminate the drug or disease causing the problem
Term
Psychogenic Diabetes Insipidus
Definition
ADH is suppressed by excessive fluid intake; due to abnormality in brain cells that regulate thirst. TX - psychiatric intervention, DDAVP
Term
Gestational Diabetes Insipidus
Definition
ADH insufficiency; the placenta destroys the hormone. This resolves within 4-6 weeks of delivery
Term
Signs/Symptoms of DI
Definition
thirst with polydipsia, polyuria, and nocturia.
Term
Polydipsia
Definition
excessive thirst
Term
Polyuria
Definition
excretion of abnormally large quantities of urine (in normal person the average is 1500 ml/day, in DI they excrete around 4-6L/day)
Term
Nocturia
Definition
excessive urination at night
Term
Growth Hormone Deficiency
Definition
in children this deficiency interferes with linear bone growth, resulting in symmetrical dwarfism. Normal intelligence, short stature, immature facial features, delayed puberty
Term
Gigantism
Definition
Excess growth hormone, occurs before the fusion of epiphyses of long bones, leads to symmetrical growth in children
Term
Pituitary adenoma
Definition
Can be a causative factor for Gigantism, a benign tumor arising from growth hormone results in hypersecretion of GH
Term
Acromegaly
Definition
Growth hormone excess in adults, after bones are done growing, leads to asymmetric growth of the soft tissues. mostly from pituitary adenoma
Term
Tests of Thyroid Function
Definition
TSH - determine if problem is primary (thyroid gland) or secondary (pituitary). Free T4 measures unbound T4 free to enter cells
Term
Signs of Hyperthyroidism
Definition
weight loss, increased appetite, heat intolerance, thin fine hair, goiter
Term
Graves Disease
Definition
autoimmune, increased thyroid hormone production, goiter, women>men
Term
Signs of Hypothyroidism
Definition
weight gain, fatigue, cold intolerance, constipation, coarse hair
Term
Cretinism
Definition
congenital hypothyroidism,hormone replacement begins within first 6 weeks of life
Term
Replacement of thyroid hormone for hypothyroidism
Definition
synthetic T4 (Synthroid), monitor patient's TSH levels
Term
Adrenal cortex funcion
Definition
release of glucocorticols (cortisol), mineralcorticoids (aldosterone) and androgens and estrogens (sugar/salt/sex)
Term
Regulation of cortisol secretion
Definition
based on normal sleep schedule, levels peak in the early morning
Term
Signs of Cushing Syndrome
Definition
central obesity, moon facies, easy bruising, poor wound healing, striae, increased body and facial hair
Term
Cushing Disease
Definition
excessive anterior pituitary secretion of ACTH
Term
Cushing Syndrome
Definition
excessive level of cortisol, regardless of the cause. Can be from tumor, cancer, or iatrogenic (too much prednisone over time)
Term
Treatment of Cushing Syndrome
Definition
Surgery if a tumor, if on extra steroids should wean off gradually (so your body can become used to making them again)
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