Outcome 8 Endocrinology Flashcards
Abnormal growth and stature
gigantism
*5 pituitary gland diseases also
- gigantism
- acromegaly
- hypopituitarism
- dwarfism
- diabetes insipidus
Gigantism is caused by the excessive production and secretion of ____ hormones
pituitary
*Gigantism occurs when there is a hypersecretion of ____ from the anterior pituitary or adenoma before ____
growth hormone; puberty
Child with gigantism experience abnormal growth because the ____ has not begun
epiphyseal closure
Gigantism is treated by reducing the amount of ___ secreted
growth hormone
How is surgery reducing the amount of growth hormone performed?
transsphenoidal approach
Chronic metabolic condition of adults with overgrowth of soft tissue and the bones of face, hands and feet
acromegaly
Which 3 bones are commonly affected by acromegaly?
bones of face, hands and feet
*Acromegaly is caused by the hypersecretion of ____ from the anterior pituitary or adenoma after ___
growth hormone; after puberty
Acromegaly is treated by reducing the amount of ___, ___ approach, and reverse or preventing ____ effects
growth hormone; transsphenoidal approach; tumor mass
Condition caused by deficiency or absence of any pituitary hormones
hypopituitarism
In hypopituitarism there is a deficiency or absence of hormones especially produced by the ____
anterior pituitary
Hypopituitarism produces ____ in children
growth retardation
Hypopituitarism can be genital or acquired ad may be caused by ___ tumor or tumor of the ___
pituitary; hypothalamus
Hypopituitarism is also caused by damage to the pituitary gland caused by ____, ischemia of ____, tumor, or ____ fracture
radiation; gland; basilar skull
*Destruction of entire anterior lobe and none of anterior pituitary hormones are secreted; occurs mostly in women
panhypopituitarism
What 3 factors determine the treatment of hypopituitarism?
- age
- severity
- underlying cause
Hypopituitarism is also treated with hormone relacement therapy with these 4 hormones
- thyroxine
- cortisone
- sex hormones
- somatropin (hGH)
Abnormal underdevelopment occuring in children
dwarfism
Dwarfism is ____ occurring in children
hypopituitarism
Dwarfism can be congenital or can result from ____ after the birth process
cranial hemorrhage
Dwarfism is treated by administering ____ until child reaches height of ____ feet
somatotropin (hGH); 5 feet
Patients with dwarfism may need replacement of ___, ___, or ___ hormones
thyroid; adrenal; sex
- Disturbance of water metabolism resulting in polyuria and polydipsia
diabetes insipidus
Excessive amount of colorless and dilute urine
polyuria
Excessive thirst; deficiency in the release of vasopressin
polydipsia
Diabetes resulting from renal tubular resistance to action of vasopressin; more common in men
nephrogenic diabetes
Diabetes insipidus occurs when the ____ pituitary releases reduced amounts of ____
posterior; vasopressin
Diabetes inspidus may be hereditary, a result of insult to the ____ or ____ gland, head trauma, cerebral edema, or intracranial lesion
hypothalamus; pituitary
Diabetes insipidus is managed with ____ injections, ____ spray or ____ (DDAVP)
vasopressin; nasal; oral desmopressin acetate (DDAVP)
Nephrogenic diabetes is managed with ____
thiazide diuretics
Thiazide diuretics block the ability of kidneys to excrete ___ and increases excretion of ___ and ____
water; sodium chloride; water
2 types of hyperpituitarism
- gigantism
2. acromegaly
*5 thyroid gland diseases
- simple goiter
- Hashimoto’s thyroiditis
- Hyperthyroidism
- Cretinism
- Myxedema
Enlargement or hyperplasia of thyroid gland usually with swelling in the neck area; asymptomatic in early stages
simple goiter
Simple goiter is also called ____
non-toxic goiter
Simple goiter can produce ___ or difficulty breathing
dyspnea
Simple goiter is caused by a shortage of ___ in diet
iodine
Simple goiter is treated with one drop per week of saturated solution of _____
potassium iodide
Unresponsive simple goiter is excised using what surgical procedure
subtotal thyroidectomy
Chronic disease of immune system that attacks the thyroid gland
Hashimoto’s thyroiditis
Hashimoto’s is also called ___
chronic thyroiditis
Hashimoto’s is accompanied by gradual and painless lumpy enlargement of the ____ causing pressure in neck and difficulty swallowing
thyroid gland
Hashimoto’s occurs in women __ times more than in men and is most common between ages 45-65
8 times
Hashimoto’s has a hereditary pattern and may also be caused by ____
autoimmune disorders
Hashimoto’s is treated with a lifelong replacement of _____ hormones; this treatment prevents further growth of goiter
thyroid hormones
Condition of primary hyperthyroidism where entire thyroid gland hypertrophies
Hyperthyroidism
Hyperthyroidism is also known as ____
Graves’ disease
When the thyroid gland hypertrophies in hyperthyroidism, this results in ____ goiter and overproduction of ____ hormones
diffuse; thyroid
Sudden exacerbation of hyperthyroidism, also called ___ or ___, can be life-threatening
thyrotoxicosis; thyroid storm
Hyperthyroidism is believed to be an ______ response
autoimmune
The goal of treating hyperthyroidism is to reduce formation and secretion of ____ hormones
thyroid
Hyperthyroidism is treated with ____ drugs, ____ therapy or ____-ectomy
anti-thyroid drugs; radioactive iodine therapy; thyroidectomy
____ are given to treat tachycardia and hypertension associated with hyperthyroidism
B-Blockers
2 types of hypothyroidism
- cretinism
2. myxedema
*Congenital hypothyroidism developing in infancy or early childhood where the thyroid gland is absent or thyroid hormone is not synthesized by thyroid gland
cretinism
Cretinism is caused by ____ in fetal development
error
Cretinism is caused by the congenital absence of ___ required for ___ and ___ synthesis
enzymes; T3; T4
Cretinism may also be caused by ____ deficient diets, ___ thyroid deficiency, or taking ____ drugs during pregnancy
iodine; maternal; anti-thyroid
Early treatment with thyroid hormone promotes normal physical growth for patients with cretinism, but this may not prevent _____
mental retardation