Antihistamines Flashcards
1
Q
Medications
A
- Diphenhydramine
- Hydroxyzine
- Meclizine
- Promethazine
- Azelastine
- Cetirizine
- Fexofenadine
- Levocetirizine
- Loratadine
2
Q
Actions
A
- Blocks release or action of histamine at histamine-1 receptors
- Decreases allergic response
- Anticholinergic and antipruritic effects
- 1st gen: greater anticholinergic effects
- 2nd gen: less sedating
3
Q
Indications
A
-Seasonal and perennial allergic rhinitis, allergic conjunctivitis, uncomplicated urticaria, and angioedema
4
Q
Contraindications
A
-Pregnancy/lactation
5
Q
Cautions
A
- Renal or hepatic dysfunction
- History of arrhythmias
6
Q
Adverse effects
A
- Drowsiness and sedation
- Anticholinergic effects
7
Q
Drug-Drug interactions
A
- Vary based on the drug
- Any drug that increases QT intervals
8
Q
Assessment
A
- History: check for contraindications or cautions
- Physical: skin, orientation and reflexes, lung sounds
9
Q
Nursing diagnosis
A
- Acute pain
- Disturbed sensory perception
- Deficient knowledge
10
Q
Implementation
A
- Take on an empty stomach to increase absorption
- Sugarless lozenges for dry mouth
- Non-pharmacologic methods
- Void before administration for those with urinary retention
- Most effective when taken before onset of S/S
- Safety measures
- Patient teaching
11
Q
Evaluation
A
- Response to drug
- Effectiveness of teaching plan
- Effectiveness of safety measures
- Compliance with drug regimen
