23 terms

med surge 3 ch 14 part 5

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Hypothyroidism description
decrease in T4 production. advanced hypothyroidism in adults is called myxedema (commonly middle aged woman)
In infants it is rare in US
its caused by part of fetus thyroid fails to develop properly
Congenital Hypothyroidism
is called cretinism (devastating, leading to mental and physical growth challenges in the infant and young child)
Hypothyroidism etiology
2 fairly common causes Hashimoto's (autoimmune usually in women) believed that lymphocytes react with thyroid tissue leading to thyroid destruction leading to inability to produce adequate amounts of thyroid hormone
2nd cause of Hypothyroidism is medical treatment
treating hyperthyroidism often leads to destruction of part or all of the thyroid gland, leading to hypothyroidism.
In underdeveloped countries congenital hypothyroidism
is common due to iodine deficiency in mothers.
Hypothyroidism signs and symptoms
opposite of hyperthyroidism. fatigue, drowsy, sensitive to cold, thin nails, brittle hair, excessive weight gain, physically and mentally sluggish.
an individual with myxedema can exhibit
all these symptoms as well as a characteristic swelling or bloating of the facial tissue, thickened tongue, and puffy eyelids.
Hypothyroidism cretins
dwarfed, short stocky build, protruding tongue, and abdomen: abnormal face broad nose, puffy eyelids, small eyes, sexual organs fail to develop. muscle growth slows possibly can't stand or walk. earlier its found the better the prognosis.many states mandate thyroid blood test on newborns.
Hypothyroidism diagnosis
review symptoms blood test (T3, T4, and free T4 index) (FTI)
Hypothyroidism treatment
treat with thyroxine hormone replacement, symptoms usually disappear after a few months of treatment.
Hypothyroidism prevention
most cases in US are not preventable because most are due to hashimoto thyroiditis.
Adrenogenital Syndrome description
over production of sex hormones by adrenal cortex. also known as virilism
virilism
masculinization or feminization depending on the excessive hormone.
Adrenogenital Syndrome etiology
hereditary most include hypersecretion of androgen
Adrenogenital Syndrome signs and symptoms
premature sexual development in males also called precocious (early development) puberty
precocious in females
overproduction of androgen leading to excessive hair on legs, chest, and abdomen. an enlarged clitoris, deepened voice and amennorrhea
precocious in males
over production of estrogen leads to gynecomastia, testicular atrophy, and decrease libido.
virilism in adult females
leads to hirsutism, decreased breast size, amennorrhea.
feminization in adult male
leads to gynecomastia, testicular atrophy, decreased libido.
Adrenogenital Syndrome diagnosis
physical exam of symptoms and blood tests (increased ACTH)
Adrenogenital Syndrome treatment
treat by surgical removal of tumor of adrenal cortex
Adrenogenital Syndrome prevention
not preventable.