Chapter 3 Flashcards

1
Q

role of nurse regarding drug toxicity (3)

A

Recognize adverse effects
Patient and family teaching
Responding to adverse effects - some can be countered with specific precautions, comfort measures

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2
Q

2 types of side effects

A

Primary action - extension of desired effect - too much

Secondary action - effects in addition to desired effect

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3
Q

define hypersensitivity

A

Excessive response to a drug

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4
Q

hypersensitivity usually r/t

A

underlying condition

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5
Q

define drug allergies

A

Occur when body forms antibodies to drug causing an immune response to it

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6
Q

define cross-sensitivity + example

A

some drugs are similar enough to produce a reaction to both

cephalosporin and penicillin

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7
Q

if a patient says they have a drug allergy, ask them…

A

what their response to drug is

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8
Q

4 types of allergy

A

anaphylaxis
cytotoxic
serum sickness
delayed reaction

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9
Q

explain anaphylaxis

A

Antibodies release histamines that cause mucous membrane swelling, constriction of airways

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10
Q

s/s anaphylaxis

A

Hives, rash may be present at beginning

Increased BP, HR, panic, respiratory arrest

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11
Q

admin _____ for anaphylaxis

A

epinephrine

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12
Q

explain cytotoxic allergy

A

Antibodies attack antigens on cell sites, causing cell death

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13
Q

s/s cytotoxic allergy

A

CBC (complete blood count) shows damage to blood cells, elevated liver enzymes, decreased renal function

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14
Q

treatment for cytotoxic is ____

A

supportive; relief of symptoms

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15
Q

explain serum sickness

A

Antibodies cause damage to tissues

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16
Q

when may serum sickness occur

A

a week or more after exposure

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17
Q

s/s serum sickness

A

Itchy rash, high fever, swollen lymph nodes, painful joints, edema of face and limbs

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18
Q

admin ______ for serum sickness

A

antiinflammatory drugs - steriods

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19
Q

explain delayed reaction allergy

A

Antibodies are bound to specific WBCs

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20
Q

s/s delayed reaction

A

Rash, hives, swollen joints

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21
Q

admin ______ for delayed reaction

A

antihistamines, steroids

22
Q

7 types of tissue/organ damage from drugs

A
dermatological
superinfections
blood dyscrasias
toxicity
electrolyte imbalances
sensory damage
neural damage
23
Q

examples of dermatological damage

A

rash
exfoliative dermatitis
Stevens-Johnson syndrome

24
Q

explain superinfections + example

A

Disruption of normal flora & overgrowth - Thrush

25
Q

explain blood dyscrasia

A

Bone marrow suppression due to drugs that cause cell death - often associated with chemo

26
Q

s/s of blood dyscrasia

A

anemia
leukopenia
thrombocytopenia
pancytopenia

27
Q

protect blood dyscrasia patients from (2) and support…

A

infections
bleeding

bone marrow recovery

28
Q

2 types of drug toxicity (organs)

A

liver

kidney

29
Q

s/s liver injury

A

Fever, malaise, n/v, jaundice, darkening of urine, abdominal pain, elevated liver enzymes

30
Q

s/s renal injury

A

Elevated BUN (blood urea nitrogen), elevated creatinine, edema, electrolyte imbalances, decreased urinary output

31
Q

hypoglycemia cause ex

A

antidiabetic meds

32
Q

hyperglycemia cause ex

A

drugs that stimulate glycogenolysis

steroids

33
Q

hypokalemia cause ex

A

loop diuretics

34
Q

hyperkalemia cause ex

A

k-sparing diuretics

35
Q

s/s hypoglycemia

A

Fatigue, drowsiness, hunger, anxiety, h/a (headache), cold & clammy skin, tremors, tachycardia, confusion, unconsciousness

36
Q

s/s hyperglycemia

A

Polyuria, polydipsia, polyphagia, deep respirations (Kussmaul respirations), flushed skin, fruity breath

37
Q

hypokalemia = K

A

<3.5

38
Q

K > ___ is hyper

A

5

39
Q

s/s hypokalemia

A

weakness, numbness, tingling, muscle cramps, n/v/d, irregular heart rate

40
Q

s/s hyperkalemia

A

weakness, muscle cramps, numbness, tingling, bradycardia

41
Q

s/s eye damage

A

Blurred vision, vision changes, corneal damage, blindness

42
Q

ex drug that can cause retinal damage

A

Hydrocychloroquine

43
Q

s/s hearing damage

A

Dizziness, tinnitus, loss of balance, loss of hearing

44
Q

ex drug that can cause hearing damage

A

antibiotics

45
Q

s/s neural effects

A

Confusion, delirium, insomnia, drowsiness, hyper or hyporeflexia, respiratory depression, loss of consciousness

46
Q

block effects of ACh in parasympathetic NS

A

anticholinergic effects

47
Q

dopamine levels affected

A

parkinson-like syndrome

48
Q

anesthesia drugs may cause…

A

Neuropleptic malignant syndrome

49
Q

s/s anticholinergic effects

A

Dry mouth, constipation, urinary hesitancy, urinary retention, impotence, palpitations, tachycardia, decreased sweating

50
Q

s/s parkinson-like syndrome

A

Akinesia, muscular tremors, drooling, rigidity, akalthisia (restlessness)

51
Q

s/s neuropleptic malignant syndrome

A

Slow reflexes, high fever, HTN, tachycardia - may be fatal