Endocrine, Metabolic and nutritional disorders- chap 9 Flashcards
Quick review
Endocrine glands
Hormones produced one place and sent through blood to other areas of body to the target tissue
***Result of congenital defect or ischemic factors
- Pituitary tumors: benign or malignant
- Trauma at base of skull
- Infection
- Pituitary dwarfism
- Posterior pituitary: diabetes insipidus
- Sheehan’s Syndrome: occurs during childbirth: restricts -blood to pituitary gland
Pituitary Hypofunction
Simmonds disease
Dwarfism
Diabetes insipidus
Pituitary Hypofunction
Weakness, hypotension, weight loss, loss of energy, emaciation
Simmonds disease
Short stature, delayed onset of puberty, headaches, excess thirst, increased urine
Dwarfism
Large amounts of urine (pituitary hypofunction)
Diabetes insipidus
Excess GH (conditions)
gigantism
Acromegaly
Excess GH before puberty
Gigantism
- Broad, heavy bones
- Large hands and feet, thick skull
- Changed facial features
- Large protruding mandible
- Affects glucose metabolism
- Htn and cardiovascular disease
Acromegaly
*Deficit in hormone
- Diabetes insipidus
- HI, surgery, or renal tubules not responding
- Polyuria
- Polydipsea
- Severe dehydration
- Replace ADH
Antidiuretic Hormone
- Excess ADH
- Retain fluid
- Stress, ectopic source
- Symptoms: confusion, irritability
- Treat with diuretics, sodium
Inappropritate ADH syndrome
- TSH secreted by pituitary gland
- Thyroid gland produces T4 and T3
- Can have thyroid or pituitary problem
Thyroid Disorders
-Enlarged thyroid gland
-Endemic: hypothyroid condition due to low iodine level
*****Mountainous area, Great Lakes
*****Goitrogens: cabbage, turnips, lithium, fluoride
-Toxic_________
*****Hyperthyroid condition
goiter
- Graves’ Disease
- Increase in T3 and T4
- Women over 30
- Autoimmune
- Exopthalmos: may lead to vision impairment
- Hypermetabolism
- Toxic goiter
Hyperthyroidism
*****Untreated: visual impairment/optic nerve damage
*****Thyroid storm: uncontrolled hyperthyroidism
-Hyperthermia
-Tachycardia
-Heart failure
-delirium
Hyperthyroidism
*****Treatment for what?
- Radioactive iodine
- Antithyroid meds
- Usually have to treat long term for low thyroid
Hyperthyroidism
-Common
-Mild cases: treat with medication
-Hashimotos thyroiditis
**Autoimmune
-Myxedema
**Non pitting edema
**Leads to hypotension, hypoglycemia, hypothermia,
**LOC
Hypothyroidism
- Congenital hypothyroidism
- Iodine deficiency: thyroid absent or not functioning
- Can lead to mental retardation if not treated
- Impaired growth and development
cretinism
testing for what?
TSH, T3, T4
T3 uptake
Antibodies
Scans
biopsy
Thyroid
**Pheochromocytoma
- Benign tumor
- Secretes epi, norepi
- Produces htn, HA, heart palpitations, sweating, anxiety
Adrenal Glands
-Prognosis is good with appropriate treatment
-MI:
***Pituitary dwarfism: growth hormone
***Simmonds Disease: give deficient hormone
***Diabetes Insipidus: ADH
Pituitary Hypofunction
**Excess glucocorticoids (cortisol)
-Adrenal adenoma
-Pituitary adenoma
-Ectopic carcinoma
-Administered glucocorticoids
**Glucocorticoids
-Responsible for stress response
cushing’s syndrome
- Moon face
- Fat at back of neck
- Thick trunk
- Fragile skin with red streaks, hirsutism
- Osteoporosis
- Delayed healing
- Gluconeogenesis, insulin resistance
- Retain sodium and water
cushings syndrome
-Deficiency of glucocorticoids (cortisol), mineralcorticoids, and androgens
-Etiology:
*Autoimmune
*Tumors
*Infection
Addison’s Disease
- Decreased blood glucose levels
- Poor stress response
- Weight loss
- Frequent infections
- Low sodium
- Hypotension
- Decreased body hair
- Treatment: hormone replacement
Addison’s Disease