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Unit 3 > Fluid and Electrolyte Imbalance - Endocrine > Flashcards

Fluid and Electrolyte Imbalance - Endocrine Flashcards

1
Q

Check for method of handling hormone test samples

A

note tube type, timing, drugs to be administered as part of the test, etc

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2
Q

Patient education about test

A

explain procedure and any restrictions to the patient

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3
Q

If you are drawing blood sample from a line

A

clear the IV line thoroughly; do not use a double- or triple-lumen line to obtain samples

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4
Q

If drug is prescribed for the test

A

Emphasize the importance of taking drug on time; tell pt to set alarm if the drug is to be taken at night

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5
Q

Urine collection

A

instruct pt to begin the urine collection by first emptying his or her bladder; do not save this urine; note time and plan to collect all urine from this time until the end of the collection period

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6
Q

To end urine collection

A

empty his or her bladder at the end of the timed period and add that to the collection

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7
Q

Storage and handling

A

is preservative needed (add to beginning), does sample need to be kept cold (place the container in cooler with ice)

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8
Q

Hormone replacement for acute adrenal insufficiency

A

Start rapid infusion of NS or D5NS; hydrocortisone sodium succinate 100-300 mg or dexamethasone 4-12 mg as IV bolus; 100 mg hydrocortisone sodium succinate via IV over next 8 hrs; hydrocortisone 50 mg IM every 12 hrs; H2 histamine blocker IV for ulcer prevention

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9
Q

Hyperkalemia management for acute adrenal insufficiency

A

administer insulin with dextrose in NS to shift K+ into cells; admin K+ binding and excreting resin; give loop or thiazide diuretics; avoid K+-sparing diuretics; initiate K+ restriction; monitor input/output; monitor HR, rhythm, and ECG for manifestations of hyperkalemia

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10
Q

Hypoglycemia management for acute adrenal insufficiency

A

administer IV glucose; administer glucagon; maintain IV access; monitor blood glucose hourly

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11
Q

Causes of primary adrenal insufficiency

A

autoimmune disease, TB, metastatic cancer, fungal lesions, AIDS, hemorrhage, gram-negative sepsis, adrenalectomy, abdominal radiation therapy, drugs and toxins

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12
Q

Causes of secondary adrenal insufficiency

A

pituitary tumors, postpartum pituitary necrosis, hypophysectomy, high-dose pituitary radiation, high-dose whole-brain radiation

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13
Q

Adrenal gland hypofunction history

A

changes in activity level, salt intake, anorexia, N/V, diarrhea, abdominal pain, weight loss, radiation to abdomen or head, and past and current drugs

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14
Q

Neuromuscular manifestations of adrenal insufficiency

A

muscle weakness, fatigue, joint/muscle pain

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15
Q

GI manifestations of adrenal insufficiency

A

anorexia, N/V, abdominal pain, bowel changes, weight loss, salt craving

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16
Q

Skin manifestations of adrenal insufficiency

A

vitiligo, hyperpigmentation

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17
Q

Cardiovascular manifestations of adrenal insufficiency

A

anemia, hypotension, hyponatremia, hyperkalemia, hypercalcemia

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18
Q

Psychosocial manifestations of adrenal insufficiency

A

lethargy, depression, confusion, psychotic, fearful

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19
Q

Increased lab values in adrenal insufficiency

A

potassium, calcium, bicarbonate, BUN, eosinophil, ATCH

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20
Q

Decreased lab values in adrenal insufficiency

A

sodium, glucose, cortisol, urinary 17-hydroxycorticosteroids, 17-ketosteroids

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21
Q

Nursing interventions for adrenal insufficiency

A

daily weight, intake/output, VS every 1-4 hrs, monitor lab values

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22
Q

Correction of cortisol and aldosterone deficiencies

A

hydrocortisone corrects glucocorticoid deficiency; mineralcorticoid hormone may be needed to maintain electrolyte balance

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23
Q

Hypersecretion by the adrenal cortex results in

A

hypercortisolism, Hyperaldosteronism, or excessive androgen production

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24
Q

Hypercortisolism (Cushing’s Disease)

A

exaggerated secretion of cortisol from the adrenal cortex; caused by problem in adrenal cortex, anterior pituitary gland, or hypothalamus; glucocorticoid therapy can also lead to hypercortisolism

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25
Q

Causes of endogenous secretion (Cushing’s Disease)

A

bilateral adrenal hyperplasia, pituitary adenoma increasing the production of ACTH, malignancies (carcinomas of the lung, GI tract, pancreas), and adrenal adenomas or carcinomas

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26
Q

Hypercortisolism patient history

A

health problems, drug therapies, age, gender, usual weight, changes in activity, sleep patterns, fatigue, and muscle weakness, bone pain, fractures, frequent infections, easy bruising, menses, and ulcer formation

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27
Q

General appearance of hypercortisolism

A

fat redistribution (moon face, buffalo hump, truncal obesity), weight gain

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28
Q

Cardiovascular manifestations of hypercortisolism

A

hypertension, increased risk for thromboembolic events, frequent dependent edema, capillary fragility (bruising, petechiae)

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29
Q

Musculoskeletal manifestations of hypercortisolism

A

muscle atrophy, osteoporosis (pathologic fractures, decreased height with vertebral collapse, aseptic necrosis of the femur head, slow or poor healing of bone fractures)

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30
Q

Skin manifestations of hypercortisolism

A

thinning skin, striae, increased pigmentation

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31
Q

Immune system manifestations of hypercortisolism

A

increased risk for infection, decreased immune function, decreased inflammatory responses, decreased production of pro-inflammatory cytokines, histamine, and prostaglandins, manifestations of infection/inflammation may be masked

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32
Q

Psychosocial manifestations of hypercortisolism

A

emotional instability, mood swings, irritability confusion, depression, inappropriate laughter or crying, difficulty concentrating, neurotic or psychotic behavior, sleep difficulties, and fatigue

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33
Q

Increased lab values in hyperfunction of adrenal gland

A

sodium, glucose, cortisol, ACTH (pituitary Cushing’s)

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34
Q

Decreased lab values in hyperfunction of adrenal gland

A

potassium, calcium, bicarbonate, ACTH (adrenal Cushing’s)

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35
Q

Causes of exogenous administration (Cushing’s Syndrome)

A

therapeutic use of ACTH or glucocorticoids (most commonly used for asthma, autoimmune disorders, organ transplantation, cancer chemo, allergic responses, chronic fibrosis

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36
Q

Patient safety for hypercortisolism

A

prevent fluid overload from becoming worse; monitor for increased fluid overload (bounding pulse, increasing neck vein distention, lung crackles, increasing peripheral edema, reduced urine output); use pressure-reducing or pressure-relieving overlay on mattress; assess skin pressure areas; change positions every 2 hrs

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37
Q

Drug therapy for hypercortisolism

A

aminoglutethimide, metyrapone, cyproheptadine, mitotane

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38
Q

Nutrition therapy for hypercortisolism

A

restrictions of fluid and sodium

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39
Q

Radiation therapy for hypercortisolism

A

not always effective; often destroys normal tissue; monitor for changes in the pts neurologic status

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40
Q

Surgical therapy for hypercortisolism

A

removal of pituitary adenoma, hypophysectomy, or adrenalectomy

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41
Q

Preop care

A

balance and monitor electrolytes; control hyperglycemia; at risk for infections and fractures, monitor for safety; high-calorie, high protein diet; glucocorticoid preparation

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42
Q

Postop care

A

assess for shock; monitor VS, hemodynamic variables, intake/output, daily weight, serum electrolytes; glucocorticoid and mineralcorticoid replacement

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43
Q

Preventing skin injury for hypercortisolism

A

instruct pt to avoid activities that can result in skin trauma, use a soft toothbrush and electric shaver; keep skin clean and dry, use moisturizing lotion; us tape sparingly; exert pressure over puncture site longer than normal to prevent bleeding and bruising

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44
Q

Preventing pathologic fractures in hypercortisolism

A

teach pt safety issues and dietary needs; use lift sheet; call for help when ambulating; use fall precautions; eat high-calorie diet, increased calcium and vit D; avoid caffeine and alcohol

45
Q

Preventing GI bleeding in hypercortisolism

A

take antacids on regular schedule; reduce or eliminate habits that contribute to gastric irritation; avoid NSAIDs, ASA, and other salicylates

46
Q

Protection from infection in hypercortisolism

A

handwashing; upper respiratory infection caregivers or visitors should wear mask; strict procedures for dressing changes and invasive procedures; continuously assess for possible infection; monitor daily CBC with diff, WBC and absolute neutrophil count; inspect mouth for lesions and mucosa breakdown; assess lungs; ask about urgency, burning, or pain with urination; take VS every 4 hrs; use good personal hygiene and pulmonary hygiene, cough and deep breathe or sustained maximum inhalations hourly

47
Q

Self-management for hypercortisolism

A

monitor weight at home, notify provider if pt gains more than 3 lbs in a week or more than 1-2 lbs in 24 hrs; lifelong hormone replacement is needed after bilateral adrenalectomy; protect pt from infection, use proper hygiene, avoid crowds or others with infection, yearly influenza for pt and family, notify provider of fever or other signs of infection; wear medical alert bracelet

48
Q

Hypophysectomy

A

surgical removal of the pituitary gland and tumor; most common treatment for hyperpituitarism

49
Q

Preop care for hypophysectomy

A

explain that procedure decreases hormone levels, relieves headaches, and may reverse changes in sexual functioning; these changes are usually not reversible; nasal packing will be present for 2-3 days after surgery, breathe through mouth, mustache dressing under nose; instruct not to brush teeth, cough, sneeze, blow nose, or bend forward after surgery due to increased ICP and healing delay

50
Q

Postop care for hypophysectomy - neuro

A

monitor neuro status, changes in vision or mental status, altered LOC, decreased strength of extremities, diabetes insipidus, CSF leakage, infection, ICP

51
Q

Postop care for hypophysectomy - general

A

monitor fluid balance, maintain pulmonary hygiene, do not cough, blow nose, or sneeze, use dental floss and oral mouth rinses, avoid bending at the waist, monitor nasal drip pad (presence of halo sign may indicate CSF leak), monitor bowel movements to prevent constipation, teach pt self-administration of prescribed hormones

52
Q

Hyperthyroidism

A

excessive thyroid hormone secretion from the thyroid gland; thyroid hormones increase metabolism in all body organs; may be temporary or permanent; over-secretion changes the secretion of hormones from the hypothalamus and anterior pituitary gland through negative feedback

53
Q

Toxic diffuse goiter (Grave’s Disease)

A

autoimmune disorder in which antibodies are made and attach to the thyroid stimulating hormone (TSH) receptors on the thyroid tissue; the gland enlarges and forms a goiter and overproduces thyroid hormones; exophthalmos and pretibial myxedema are present

54
Q

Toxic multinodular goiter

A

caused by multiple thyroid nodules; may be enlarged thyroid tissues or benign tumors; usually have a goiter for years

55
Q

Exogenous hyperthyroidism

A

caused by excessive use of thyroid replacement hormones

56
Q

Patient history of hyperthyroidism

A

age, gender, usual weight, heat intolerance, palpitations or chest pain, changes in breathing patterns, visual changes, change in energy levels, irritable or depressed, change in menses, increase in libido, medical history, previous thyroid surgery or radiation therapy to the neck, past and current drugs

57
Q

Skin manifestations of hyperthyroidism

A

diaphoresis, fine, soft, silky body hair, smooth, warm, moist skin, thinning of scalp hair

58
Q

Pulmonary manifestations of hyperthyroidism

A

SOB with or without exertion, rapid, shallow respirations, decreased vital capacity

59
Q

Cardiovascular manifestations of hyperthyroidism

A

palpitations, chest pain, increased systolic blood pressure, widened pulse pressure, tachycardia, dysrhythmias

60
Q

GI manifestations of hyperthyroidism

A

weight loss, increased appetite, increased stools, hypoproteinemia

61
Q

Musculoskeletal manifestations of hyperthyroidism

A

muscle weakness and wasting

62
Q

Neurologic manifestations of hyperthyroidism

A

blurred or double vision, eye fatigue, corneal ulcers or infections, increased tears, injected conjunctiva, photophobia, eyelid retraction or lag, globe lag, hyperactive deep tendon reflexes, tremors, insomnia

63
Q

Metabolic manifestations of hyperthyroidism

A

increased basal metabolic rate, heat intolerance, low-grade fever, fatigue

64
Q

Psychological/emotional manifestations of hyperthyroidism

A

decreased attention span, restlessness, irritability, emotional lability, manic behavior

65
Q

Reproductive manifestations of hyperthyroidism

A

amenorrhea, decreased menstrual flow, increased libido

66
Q

Other manifestations of hyperthyroidism

A

goiter, wide-eyed or startled appearance (exophthalmos), decreased total WBC, enlarged spleen

67
Q

Lab testing for hyperthyroidism

A

triiodothyronine (T3), thyroxine (T4), T3 resin uptake (T3RU), and thyroid-stimulating hormone (TSH); antibodies to TSH (TSH-RAb) are measured to diagnose Graves’ disease

68
Q

Lab abnormal values for hyperthyroidism

A

Page 1396

69
Q

Thyroid scan

A

evaluates the position, size, and functioning of the thyroid gland; pregnancy should be ruled out before scan; procedures that use iodine-containing dye should not be performed for at least 4 weeks before a thyroid scan is done; drugs that contain iodine should be discontinued for 1 week before the scan

70
Q

Ultrasonography

A

determines the size and general composition of any masses or nodules; takes about 30 minutes and is painless

71
Q

Drug therapy: thionamides (pylthiouracil and methimazole

A

block thyroid hormone production by preventing iodide binding in the thyroid gland; PTU prevents T4 from being converted to T3; response is delayed

72
Q

Drug therapy: iodine preparations

A

short-term therapy before surgery; decrease blood flow through the thyroid gland; reduces the production and release of thyroid hormone; monitor for hypothyroidism

73
Q

Drug therapy: lithium

A

inhibits thyroid hormone release; use is limited d/t side effects of depression, diabetes insipidus, tremors nausea, vomiting; may be used for pt who cannot tolerate other antithyroid drugs

74
Q

Drug therapy: Beta-adrenergic blocking drugs (propranolol)

A

supportive therapy; relieves diaphoresis, anxiety, tachycardia, palpitations; do not inhibit thyroid hormone production

75
Q

Drug therapy: radioactive iodine (RAI) therapy

A

not used in pregnant women; dosage depends on thyroid gland size and sensitivity to radiation; symptom relief may not occur until 6-8 weeks after therapy; add’l drug therapy is needed during the first few weeks after RAI tx; performed on outpt basis; 1-3 doses needed; radiation dose is low and eliminated in a month; use radiation precautions; monitor regularly for changes in thyroid function

76
Q

Total and subtotal thyroidectomy

A

Removal of all or part of the thyroid tissue; decreases the production of thyroid hormones; pt must take lifelong thyroid hormone replacement

77
Q

Preop care for thyroidectomy

A

pt is treated with antithyroid drugs; iodine preps are used to decrease thyroid size and vascularity; cardiac issues must be controlled; pt follows high-protein, high-carb diet for days/weeks; teach to support neck while coughing or moving following; hoarseness may be present following; explain the surgery and care following

78
Q

Operative care for thyroidectomy

A

general anesthesia; collar incision just above the clavicle; subtotal remaining thyroid tissue is sutured to trachea

79
Q

Postop care for thyroidectomy

A

monitor VS 15 min till pt stable then 30 min for 24 hrs; semi-fowlers when awake; sandbags or pillows to support head/neck; avoid neck extention; pain control; humidified air; monitor for hemorrhage, respiratory distress, hypocalcemia, tetany, and laryngeal nerve damage, thyroid storm/crisis

80
Q

Thyroid storm/crisis triggers

A

stressors such as trauma, infection, diabetic ketoacidosis, pregnancy, vigorous palpation of goiter, exposure to iodine, radioactive iodine therapy

81
Q

Thyroid storm/crisis manifestations

A

fever, tachycardia, systolic hypertension, abdominal pain, nausea, vomiting, diarrhea, as crisis progresses: anxiousness, tremors, restless, confusion, psychotic, seizures leading to coma, can lead to death; report a temp increase of even 1 degree F, as it may indicate an impeding thyroid crisis

82
Q

Medications during thyroid storm/crisis

A

methimazole, propylthiouracil, sodium iodide solution, propranolol, glucocorticoids (hydrocortisone, prednisone, or dexamethasone, non-salicylate antipyretics

83
Q

Emergency care during thyroid storm/crisis

A

maintain patent airway, administer meds; monitor for cardiac dysrhythmias, VS Q30m; comfort measures, cooling blanket; correct dehydration with NS; cooling blanket or ice packs to reduce fever

84
Q

Hypothyroidism - Myxedema

A

thyroid cells fail to produce sufficient levels of thyroid hormones; low metabolic rate; buildup of glycosaminoglycans forms cellular mucinous edema and changes the pts appearance; nonpitting edema forms everywhere

85
Q

Skin manifestations of hypothyroidism

A

cool, pale, yellowish, dry, coarse, scaly skin, thick, brittle nails, dry, coarse, brittle hair, decreased hair growth, loss of eyebrow hair, poor wound healing

86
Q

Pulmonary manifestations of hypothyroidism

A

hypoventilation, pleural effusion, dyspnea

87
Q

Cardiovascular manifestations of hypothyroidism

A

bradycardia, dysrhythmias, enlarged heart, decreased activity tolerance, hypotension

88
Q

Metabolic manifestations of hypothyroidism

A

decreased basal metabolic rate, decreased body temperature, cold intolerance

89
Q

Musculoskeletal manifestations of hypothyroidism

A

muscle aches and pains, delayed contraction and relaxation of muscles

90
Q

Neurologic manifestations of hypothyroidism

A

slowing of intellectual functions (slow or slurred speech, impaired memory, inattentiveness), lethargy or somnolence, confusion, hearing loss, paresthesia of extremities, decreased tendon reflexes

91
Q

Psychological/emotional manifestations of hypothyroidism

A

apathy, depression, paranoia, withdrawal

92
Q

GI manifestations of hypothyroidism

A

anorexia, weight gain, constipation, abdominal distention

93
Q

Reproductive manifestations (women) of hypothyroidism

A

changes in menses, anovulation, decreased libido

94
Q

Reproductive manifestations (men) of hypothyroidism

A

decreased libido, impotence

95
Q

Other manifestations of hypothyroidism

A

periorbital edema, facial puffiness, nonpitting edema of the hands and feet, hoarseness, goiter, thick tongue, increased sensitivity to opioids and tranquilizers, fatigue, weakness, decreased urine output, anemia, easy bruising, iron deficiency, folate deficiency, B12 deficiency

96
Q

Primary causes of hypothyroidism

A

decreased thyroid tissue (surgical removal of thyroid, radiation induced thyroid destruction, autoimmune thyroid destruction, congenital thyroid agenesis, congenital thyroid hypoplasia, congenital thyroid dysgenesis, cancer), decreased synthesis of thyroid hormone (endemic iodine deficiency, excessive exposure to iodine, drugs [lithium, phenylbutazone, propylthiouracil, sodium or potassium percholate, and aminoglutethimade])

97
Q

Secondary causes of hypothyroidism

A

inadequate production of thyroid-stimulating hormone (pituitary tumors, trauma, infections, or infarcts, congenital pituitary defects, hypothalamic tumors, trauma, infections, or infarcts)

98
Q

Pt history for hypothyroidism

A

compare activity now with that of a year ago; ask whether more blankets at night or sweaters and extra clothing in warm weather have been needed; current or previous use of drugs; has pt ever been treated for hyperthyroidism, if so what specific treatment was used

99
Q

Laboratory assessment for hypothyroidism

A

Triiodothyronine (T3), thyroxine (T4) are decreased, TSH levels are high in primary but may be normal in secondary

100
Q

Improving oxygenation in hypothyroidism

A

monitor resp status; apply oxygen if needed; monitor lung sounds; use ventilator support if needed; sedation should be avoided unless necessary, and reduced dosage is required

101
Q

Preventing hypotension in hypothyroidism

A

monitor BP, heart rate and rhythm, observe for signs of shock; report episodes of chest pain or chest discomfort; starting levothyroxine sodium at too high a dose or increasing the dose too rapidly can cause severe hypertension, heart failure, and myocardial infarct

102
Q

Supporting cognition in hypothyroidism

A

observe and report lethargy, drowsiness, memory deficit, poor attention span, and difficulty communicating; problems should resolve within 2 wks of thyroid hormone replacement; orient pt and explain procedures; provide safe environment; encourage family to accept the mood changes and remind them that these problems should improve with therapy

103
Q

Prevention of myxedema coma

A

at risk: acute illness, surgery, chemotherapy, discontinuing thyroid replacement therapy, use of sedatives or opioids

104
Q

Emergency care of myxedema coma

A

patent airway; replace fluids with IV NS or hypertonic saline; give levothyroxine sodium; give glucose IV; give corticosteroids; check temp hourly; monitor BP hourly; cover pt with warm blankets; monitor for changes in mental status; turn pt every 2 hrs; institute aspiration precautions

105
Q

Pt teaching for hypothyroidism

A

lifelong drug therapy; manifestations of hypo- and hyperthyroidism; medical alert bracelet; when to seek medical interventions; periodic blood tests; no OTC drugs (may interact with thyroid hormone prep); adequate fiber and fluid intake; take thyroid meds on empty stomach; resolution time varies; when pt needs more sleep and is constipated, dose should be increased; when pt has difficulty getting to sleep and has more BMs, the dose should be decreased

106
Q

Adrenocorticotropic hormone (ACTH)

A

released by the pituitary; stimulates the release of cortisol, aldosterone, and androgen from the adrenal cortex

107
Q

Vasopressin (antidiuretic hormone - AHD)

A

released by the posterior pituitary; promotes water reabsorption to maintain water balance

108
Q

Thyroid stimulating hormone (TSH)

A

released by the anterior pituitary; stimulates the release of thyroxine (T4) and triiodothronine (T3) from the thyroid

Unit 3 (4 decks)

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