Endocrine System Flashcards

(77 cards)

1
Q

Leuprolide
nursing considerations & patient teaching

A

nursing:
- decreases effects of anti diabetic drugs
- give med until 11-12 years old
- IM or SQ injection
- rotate site
- effects will take 2-4 weeks
- usually given monthly

patient education:
- teach proper injection technique
- report irritation at injection site
- keep track of monthly dosing
- use nonhormonal birth control

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2
Q

Octreotide
- action
- use
- adverse effects
- contraindications

A

action: mimics somatostatin, inhibiting GH, insulin & some GI hormones
use: Acromegalia, GI bleeding, Diarrhea, some tumors
adverse effects: H/A, dizziness, bradycardia, hyperglycemia, diarrhea
contraindications: pancreatitis & diabetes

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3
Q

Octreotide nursing considerations & patient education

A

Nursing:
- many drug to drug interactions
- IV or IM route
- rotate injection site
- monitor height & weight
- monitor blood glucose
Patient education:
- teach proper injection technique
- monitor blood glucose if at risk
- monitor height & weight
- notify MD if severe GI upset

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4
Q

where are parathyroid glands located & what do they produce?

A

located ON back of thyroid gland; produce parathyroid hormone (PTH)

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5
Q

what two things does PTH regulate?

A

calcium (8.5 - 10.5) & phosphorus (indirectly)

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6
Q

which hormones are involved in calcium regulation? in which 3 ways do these hormones alter the absorption of calcium?

A

parathyroid hormone, calcitonin, & vitamin D
1. from GI tract
2. from bones
3. excreted by kidneys

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7
Q

when calcium levels are low:
- how does this affect PTH & amount of Ca in urine, GI, bone,
& blood?

A

increased PTH released & increased activation of Vitamin D
- decreased loss of Ca+ in urine
- increased GI absorption of Ca+
- Increased Ca+ release from bones
- raise calcium in blood

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8
Q

when calcium levels are high:
- how does this affect PTH & amount of Ca in GI tract, bones, & blood?

A

decreased secretion of PTH & increased secretion of calcitonin
- increased loss of Ca+ in GI tract
- decreased release of Ca+ from bones
- decrease calcium in blood

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9
Q

difference between hypo & hyperparathyroidism & causes

A

Hypoparathyroidism: not enough PTH, low calcium levels
causes: accidental removal of parathyroid glands
Hyperparathyroidism: too much PTH, high calcium levels
causes: tumor or enlargement of glands, genetic disease (Paget’s disease)

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10
Q

S/Sx of hypo & hypercalcemia

A

Hypocalcemia: Hyperactive reflexes, paresthesias, positive Chostek & Trousseau signs, hypotension, prolonged QT intervals, abdominal & muscular spasms & cramps

Hypercalcemia: lethargy, coma, hypertension, shortening of the QT interval, N/V, muscle atrophy, kidney stones, renal insufficiency

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11
Q

calcium supplements (calcium acetate, calcium carbonate (tums), calcium citrate, calcium gluconate)
- action
- use
- adverse effects
- contraindications

A

action: provides supplemental calcium
use: tx & prevent hypocalcemia, decrease bone loss & fractures, treat high phosphorus levels
adverse effects: GI upset (N/V, constipation), EKG changes, weakness
contraindications: kidney stones, cancer w bone involvement, hypercalcemia, hypophosphatemia

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12
Q

Calcium supplement nursing considerations & patient education

A

nursing:
- available PO & IV
- give PO after meals
- monitor IV closely, tissue toxic
- monitor lab values
- monitor EKG for changes
Patient education:
- calcium carbonate (tums) most calcium OTC
- high calcium diet (milk, yogurt, cheese)
- take after meals

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13
Q

without ___ calcium cannot be absorbed

A

Vitamin D

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14
Q

Vitamin D
- action
- use
- adverse effects
- contraindications

A

action: increases calcium & phosphorus, absorption in GI tract, pulls calcium & phosphorus from bones, decreases calcium & phosphorus in kidneys
use: vitamin D deficiency & treatment of hypoparathyroidism
adverse effects: high vitamin D (fat soluble) & high calcium
contraindications: high calcium & vitamin D toxicity

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15
Q

Vitamin D nursing considerations & patient education

A

nursing:
- monitor lab values
- many combination meds available
patient education:
- high vitamin D diet (fish, eggs, milk)
- sunlight good source of vitamin D
- may be taken w out regard to meals

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16
Q

normal range for calcium

A

8.5 - 10.5

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17
Q

Alendronate
- action
- use
- adverse effects
- contraindications

A

action: binds to bone & blocks calcium release, suppresses osteoclasts
use: treat & prevent osteoporosis
- post menopausal
- steroid induced
adverse effects: esophageal irritation / erosion**, bone pain
contraindications: **
inability to sit upright for 30 minutes
*, esophageal disorders

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18
Q

Alendronate nursing considerations & patient education

A

nursing:
- give first thing in the morning
- give w full glass of water
- nothing to eat or drink for 30 minutes before
- remain sitting upright for 30 minutes
patient education:
- proper administration
- report esophageal pain, heartburn, & difficulty swallowing to MD

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19
Q

which drug should be given instead of Alendronate if a patient is unable to sit upright for 30 minutes?

A

Calcitonin Salon (nasal spray)

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20
Q

adrenal glands
- where are they located?
- what are the two layers & their roles?

A

located on top of each kidney
layers:
1. adrenal cortex (makes 3 corticosteroids controlled by the hypothalamus)
2. adrenal medulla (part of SNS; fight or flight)

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21
Q

which 3 hormones does the adrenal cortex make & what responses do they regulate?

A
  1. Glucocorticoids (immune response)
  2. Mineral corticoids (water & electrolyte balance)
  3. Androgens (male / female reproductive)
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22
Q

what is addison’s disease? what do patients lack? what can it be caused by?

A

lack of adrenocortical hormones
can be caused by:
- lack of ACTH
- lack of response of adrenal glands
- damage to adrenal glands
- prolonged use of corticosteroids

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23
Q

what is an adrenal crisis? list some effects & how it can be treated

A

adrenal insufficiency + extreme stress = body unable to support SNS response
effects: hypotension, exhaustion, shock, death
treatment: massive steroid infusion

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24
Q

cushing’s disease
- what is it?
- what can it be caused by?
- what are some S/Sx?

A

excess adrenocortical hormones
can be caused by: excessive corticotropin & tumors
S/Sx: hyperglycemia, irritability, moon shaped face, fluid retention

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25
treatment for Addison's disease
- Replace adrenocorticoids - Replace mineralocorticoids - Lifetime replacement necessary - Increase dose in times of stress
26
treatment for Cushing's Disease
- Usually surgical treatment - Meds in preparation or surgery contraindicated - Inhibit cortisol synthesis
27
Hydrocortisone - action - use - adverse effects
action: combo mineralocorticoid & adrenocorticoid, decreases inflammatory response, & increases retention of Na use: acute & chronic adrenal insufficiency adverse effects: cardiac (HTN, MI), CNS (dizziness, vertigo, H/A), derm (thin skin & easy bruising), GI (GI upset & weight gain), fluid balance (fluid & Na retention), metabolic (hyperglycemia) ***Black box warning to avoid live vaccines***
28
Hydrocortisone nursing considerations & patient education
nursing: - give w food - give before 0900 - monitor vitals - monitor fluid volume status -monitor glucose patient education: - take before 0900 - space doses evenly throughout day - do not stop abruptly - increase dose in times of stress - increase calcium diet if long term - monitor blood glucose - report S/Sx of Cushing's disease
29
Fludrocortisone - action - use - adverse effects - contraindications
action: strong mineralcorticoid action, Na retention & K excretion (increased BP) use: additional mineralcorticoid supplement in Addison's adverse effects: ***fluid retention, HTN, CHF***, growth suppression, hyperglycemia, hypokalemia contraindications: uncontrolled HTN
30
Fludrocortisone nursing considerations & patient education
nursing: - many drug to drug interactions - take along w glucocoticoid - monitor Na & K levels - monitor weight - monitor vitals patient education: - high K diet (bananas, OJ, potatoes) - low Na diet - monitor weight, call for 5 lb gain - follow up labs - report swelling or SOB to MD
31
Ketoconazole - action - use - adverse effects - contraindications
action: inhibits cortisol synthesis use: treat Cushing's disease adverse effects: itching, GI upset, ***black box for liver toxicity*** contraindications: liver failure
32
what two roles do the endocrine & NS work together on?
maintaining homeostasis & responding to environment
33
endocrine system communicates within the body to...
- regulate growth & development - regulate energy use - balance electrolytes - respond to internal (infection) & external (weather, jobs) stressors
34
what do endocrine glands produce?
hormones that are secreted directly into bloodstream
35
what do hormones do?
increase or decrease cellular function; broken down immediately & produced in small amounts
36
in what 2 ways does the endocrine structure work? give examples
1. react w specific receptor sites on the cell (EX: insulin) 2. enter cell & react w a receptor site inside the cell (EX: estrogen)
37
what 3 hormones does the thyroid gland produce?
1. triiodothyroinine (T3) 2. thyroxine (T4) 3. calcitonin (affect calcium & other hormones that regulate calcium)
38
circular follicles
store hormones
39
parafollicular cells
produce calcitonin
40
list roles of thyroid hormones (T3 & T4)
- regulate metabolism - affect heat production - affect body temperature - oxygen consumption / cardiac output - blood volume - metabolism of CHO, fats, proteins - growth & development
41
thyroid gland role
TH production & release regulated by TSH negative feedback loop: only made when needed, not continuous
42
what is hypothyroidism?
absence of thyroid gland: - lack of iodine (needed to make T3 & T4) - lack of functioning thyroid tissue - lack of TSH (no hormones get made R/T message not getting down to thyroid) - lack of TRH (no first step = no message to TSH or thyroid)
43
list the 2 hypothyroid conditions & explain
Myxedema: severe hypothyroidism Myxedema coma: could be fatal
44
hyperthyroidism - what is it? - list a disease
excessive amounts of thyroid hormone Grave's disease: autoimmune disorder that stimulates TSH to release thyroid hormones overstimulation from TSH = enlarged thyroid gland = releases too much hormone thyroid storm: too much thyroid hormone (could be fatal)
45
Propylthiouracil (PTU) - action - use - adverse effects
action: inhibits production of thyroid hormone (takes about 1-2 weeks while old hormones get used up) use: hyperthyroidism adverse effects: hypothyroidism, bone marrow suppression, ***BBW: liver failure***
46
Lugols solution (iodine solution) - what is it used to treat? - use
used to tx hyperthyroidism **give before OR after to reduce size & vascularity of thyroid gland ***not safe in pregnancy*** may discolor teeth, drink w straw
47
anti-thyroid drugs nursing implications & patient education
nursing: - increases effect of anticoags - may take 1-2 weeks to start working - monitor liver function - monitor metabolism of other drugs as metabolism slows Patient education: - take evenly around the clock - take always w food or always w out food - may take 1-2 weeks to start working - alert MD to s/sx of liver failure - may need blood draws to monitor therapeutic level - will need lifelong thyroid hormone replacement
48
Levothyroxine - action - use - adverse effects - contraindications
action: synthetic T4, increases metabolic rate use: hypothyroidism, thyroid cancer adverse effects: hyperthyroidism (tachy, CP, MI, nervousness, insomnia, weight loss) contraindications: acute MI
49
levothyroxine nursing considerations & patient education
nursing: - goal TSH 0.5 - 4.2 microunits / L - many drug interactions (increases effect of anticoags) ***monitor metabolism of other drugs as metabolism increases** - monitor for stress on heart = CP, tachy, sweating patient education: ***take in morning on empty stomach** - frequent lab draws needed early - periodic labs drawn later in therapy - lifelong replacement
50
hypothalamus
- "master gland" - constantly monitor's body's homeostasis - coordinates responses through autonomic, endocrine, & NS - receives input from the rest of the brain (acts as a sensory to electrolytes, chemicals, & hormones) - stimulates or suppresses endocrine, autonomic, & CNS activity
51
Leuprolide - action - use - adverse effects
action: inhibits gonadotropin secretion: suppressing LH & FSH, decreasing testosterone in males use: treatment of early puberty (< 8 years old), tx of prostate cancer, tx of endometriosis adverse effects: pain at injection site, labile emotions
52
Desmopressin (DDAVP) nursing considerations & patient education
nursing considerations: - available in multiple routes (IM, SQ, IV, Nasal) - monitor I's & O's - monitor electrolytes (Na, K) - monitor urine osmolality - assess hydration status patient education: - report HA, drowsiness, lethargy to MD - rotate injection site of IM or SQ - rotate Nares for nasal spray
53
Desmopressin (DDAVP) - action - use - adverse effects
action: synthetic ADH, decreases urine volume use: tx of Diabetes Insipidus adverse effects: - swelling & burning at injection site - nasal irritation - ***black box: cardiac arrest d/t rapid fluid volume change*** - ***black box: for risk of hyponatremia leading to seizures & death***
54
Somatropin nursing considerations & patient education
nursing: - monitor for hyperglycemia - med is given IM or SQ - rotate injection sites - ***monitor height & weight for effectiveness (should increase)*** - medication given until desired height reached - x-rays needed to monitor for epiphyseal closure patient education: - monitor height & weight at home - monitor glucose at home if at risk - teach proper injection technique
55
Somatropin - action - use - adverse effects - contraindications
action: replaces growth hormone, stimulates bone / muscle growth use: growth failure in children adverse effects: muscle pain / hyperglycemia contraindications: - ***closed epiphyses** if closed, no room for bone growth; already sealed - malignancy
56
precocious puberty
early development of sex characteristics (prior to age 8) r/t excess gonadotropin hormones or excess androgen / estrogen (can be from exposure to estrogen)
57
acromegaly
gigantism r/t excess growth hormone
58
growth deficiency in children
- deficiency in growth hormone - growth below 3rd percentile
59
diabetes insipidus
- dysfunction of posterior pituitary - deficiency in ADH production - large quantity of dilute urine (up to 30 liters)
60
role of ADH
regulates water balance
61
role of oxytocin
uterine contractions, milk letdown
62
role of ACTH
stimulates production of corticosteroids
63
role of growth hormone (GH)
stimulates growth of body tissues
64
role of TSH
regulates secretion of thyroid hormones
65
role of FSH
stimulates function of sex glands
66
role of LH
stimulates hormone production
67
role prolactin hormone (PLH)
milk production in mothers
68
what are the posterior pituitary hormones?
ADH & Oxytocin
69
what are the anterior pituitary hormones?
ACTH, GH, TSH, FSH, LH, & PLH
70
which hormone is on the pars intermediate lobe & when is it secreted?
endorphins / enkephalins secreted in response to pain, stress overactivity of pain nerves, sympathetic stimulation, guided imagery, & vigorous exercise
71
role of CRF
release of corticotropin during stress
72
role of GHRH
release of growth hormones
73
role of TRH
releases TH during stress
74
role of GnRH
releases FSH & LH
75
role of PRF
lactation & childbirth
76
role of somatostatin
inhibits release of growth hormone
77
role of PIF
inhibits lactation