click below
click below
Normal Size Small Size show me how
Endocrine Medicines
Pharm Exam 4
| Question | Answer |
|---|---|
| hormone release is commonly controlled by what | negative feedback |
| what does negative feedback prevent | overresponse of the endocrine system |
| how do you treat hypofunction of an endocrine gland? | replace the missing hormone or give precursor to boost function |
| how do you treat hyperfunction of an endocrine gland? | suppress stimulation |
| What is a primary endocrine problem | one that originates with the gland itself |
| what is a secondary endocrine problem | one that originates with a problem with a hormone |
| what is a tertiary endocrine problem | one that originates with a problem with the hypothalamus |
| what does the hypothalamus secrete and where | releasing hormones; to the anterior pituitary |
| what are antineoplastics | chemotherapy |
| Where is the pituitary located | at the base of the brain next to the hypothalamus |
| what hormones does the anterior pituitary secrete and what do they control | ACTH controls cortisol, TSH controls thyroid hormone, FSH regulates fertility, LH controls sex hormones, PRL breast milk, GH controls everything |
| what are prolactin and oxytocin commonly used for | reproduction |
| what deficiency in hypopituitarism can be life threatening--why? | ACTH--b/c of it's role with the adrenal gland |
| What does hypopituitarism look like | tired and nauseous with postural hypotension |
| What is the pattern of deficiency in hypopituitarism | GH,LH,FSH,TH,ACTH |
| how do you treat hypopituitarism | find the underlying cause and replace the deficient hormone |
| what is dwarfism | a deficiency in GH |
| what two drugs are used to treat GH deficiency-how are they made | somatropin and somatrem--by recombinant DNA technology |
| What are common characteristics of GH deficiency in children? | normal birth wt and intelligence, short stature and obese, immature appearance |
| how do you treat GH deficiency in children? what is the administration route? | GH replacement, subq, |
| what is dyslipidemia | a metabolic syndrome with an elevation of C-reactive protein and interleukin 6 |
| Pts with GH deficiency as adults are at increased risk for what? | increased cardiovascular risk (promoting atherosclerosis), increased weight circumference, insulin resistance |
| How do you treat GH deficiency in adults | hormone replacement |
| What are prototype drugs for GH? what is it also known as? What is the action and use? | protropin and genotropin--somatropin--hormone replacement--deficiency and short stature |
| long term use of GH replacement can lead to what and why | diabetes mellitus b/c it increases glucose levels |
| how do you give GH | IM or SQ |
| What causes GH excess in children (tall stature)? How do you treat it? | genetic-marfans--with estrogen and testosterone 3-4 yrs before epiphyseal closure |
| What is a common cause of giantism? | pituitary tumor causing excess GH to be released prior to bone closure |
| what is acromegaly? What is a common cause? S/S? | excess GH after bone closure--pituitary tumor--big hands, prominent forehead, HTN CAD CHF d/t enlarged heart |
| What are some treatments for acromegaly? | surgery to remove pituitary and somatostatin analogs |
| What is sandostatin? What is it used for? | Somatostatin-GH excess |
| How does sandostatin work? How is it administered? | it supresses GH, glucagon, insulin, and LH--IM every 10-14 days |
| What are the posterior pituitary drugs? How do they work? | Pitressin and DDAVP--they aid the kidney in concentrating urine |
| What type of pt would need pitressin or DDAVP? | Diabetes insipidus, renal failure, enuresis (bedwetting-DDAVP) |
| What are some SE of pitressin and DDAVP? | HTN, angina, fluid retention, MI, water intoxification |
| How are pitressin and DDAVP administered? What are the onset and duration? | PO, IV, SubQ, intranasal--onset 1hr duration 8-20hrs |
| What are some nursing actions for pitressin and DDAVP? | monitor BP, limit water intake, pregnancy class X |
| What serum levels need to be monitored with thyroid problems? Why? | calcium--Calcitonin helps regulate blood calcium levels |
| What are the roles of T3 and T4? | T4 is responsible for cellular metabolism and T3 regulates cellular metabolism |
| What is hypothyroidism? | a hypometabolic state that results in a decreases in metabolism, O2 consumption, and heat production |
| What are some causes of hypothyroidism? | primary-congenital defect, surgery, radiation, antithyroid meds, iodine deficiency, thyroiditis Secondary-resistance to thyroid hormone or pituitary TSH deficiency |
| What are some common S/S for hypothyroidism? | decrease in everything except weight and fluid, cold intolerance d/t hypothermia |
| What is myxedema? What is disorder is it common in? | fluid retention in interstitial spaces resulting in non pitting edema; can L/T dilated cardiomyopathy--hypothyroidism |
| How do you treat hypothyroidism? | hormone replacement |
| What can cause a myxedematous coma? | Prolonged untreated hypothyroidism from inadequate replacement, infection, cold exposure, CNS depression, trauma |
| How do you characterize a myxedematous coma? | lactic acidosis, hypoglycemia, hyponatremia, hypotension, bradycardia, hypothermia, hypoventilation |
| What is synthroid? What is it used for? | thyroid hormone--hypothyroidism, goiter, thyroid cancer |
| What are some important nursing actions to remember in the administration of synthroid? | give at same time in AM, monitor s/s of hypo/hyperthyroidism, check pulse prior to admin, take on empty stomach, do not stop abruptly |
| What is the most common cause of hyperthyroidism? What are some other causes? | Graves Disease (autoimmune)--goiter, tumor, excess replacement |
| What are some S/S of hyperthyroidism? | everything goes up except weight-expothalamos, fatigue, hyperthermia (heat intolerance) |
| What is PTU? What does it do? What is it used for? | antithyroid med--stops TH--hyperthyroidism |
| What are some nursing implications for PTU? | monitor pulse before admin, monitor for s/s of hypo/hyperthyroidism, give with meals (3xday), monitor for agranulocytosis (fever, fatigue) |
| What are some iodine meds? How do they work? | Ca, Na, K iodide--increased amounts suppress TH |
| What are iodine meds used for? | pre-hyperthyroid surgery to prevent bleeding |
| What are some nursing implications for iodine meds? | Monitor for allergic reaction (betadine, shellfish), pt should not be in contact with children or pregnant women for 1 week b/c iodine has been linked to birth defects |
| What role does PTH play in the kidneys? | It enhances the activation of Vit. D |
| Hypoparathyroidism can lead to what? | hypocalcemia, hyperphosphatemia, and increased DTR |
| What are some signs and symptoms of hypocalcemia? | increased DTR, positive Trousseau and Chvostek signs, tetany, muscle cramps, pathological fractures |
| How do you treat hypoparathyroidism? | Admin IV Ca gluconate, Vit. D, and PTH replacement |
| Hyperparathyroidism can lead to what? | hypercalcemia, hypophosphatemia, renal damage, bone damage |
| What are some S/S of hypercalcemia | N/V, lethergy, flank pain (kidney stones), anorexia, decreased LOC, cardiac arrest |
| What are some iodine meds? How do they work? | Ca, Na, K iodide--increased amounts suppress TH |
| What are iodine meds used for? | pre-hyperthyroid surgery to prevent bleeding |
| What are some nursing implications for iodine meds? | Monitor for allergic reaction (betadine, shellfish), pt should not be in contact with children or pregnant women for 1 week b/c iodine has been linked to birth defects |
| What role does PTH play in the kidneys? | It enhances the activation of Vit. D |
| Hypoparathyroidism can lead to what? | hypocalcemia, hyperphosphatemia, and increased DTR |
| What are some signs and symptoms of hypocalcemia? | increased DTR, positive Trousseau and Chvostek signs, tetany, muscle cramps, pathological fractures |
| How do you treat hypoparathyroidism? | Admin IV Ca gluconate, Vit. D, and PTH replacement |
| Hyperparathyroidism can lead to what? | hypercalcemia, hypophosphatemia, renal damage, bone damage, increased bicarb excretion and decreased acid excretion L/T hypokalemia & metabolic acidosis |
| What are some S/S of hypercalcemia | N/V, lethergy, flank pain (kidney stones), anorexia, decreased LOC, cardiac arrest |
| What are some common causes of hyperparathyroidism? | cancer, tumor, renal failure |
| What treatments are available for hyperparathyroidism? | Calcitonin, |