topic 6 respiratory Flashcards
(42 cards)
what classification is diphenhydramine?
antihistamine
indications for diphenhydramine
allergic rhinitis, motion sickness, sleep aid, seasonal allergies
contraindications of diphenhydramine
anything that amplifies anticholinergic effects:
- asthma
- COPD
- glaucoma
MOA of diphenhydramine
antagonizes antihistamine effects by binding at H1 receptor sites
drug interactions w/ diphenhydramine
no MAOIs
increased CNS depression w alc, opiods, hypnotics
side effects of diphenhydramine
anticholinergic effects: urinary retention, dry mouth, bad vision
- hypotension
- PHOTOSENSITIVITY
onset of diphenhydramine
15 min PO
IV immediate
patient teaching for diphenhydramine
no driving, drinking, wear sunscreen, no sports after taking
CAM considerations for diphenhydramine
valerian and kava kava (increase sedation)
what class is dextromethorphan
antitussive
(non narcotic OTC)
MOA of dextromethorphan
depresses the urge to cough in medulla
use of dextromethorphan
for temporary relief of cough frequency for non-productive cough
onset and duration of dextromethorphan
onset 15-50 min after PO
lasts 3-6 hours
pt education for dextromethorphan
increase fluids to decrease thickness of secretions
side effects of dextromethorphan
dizziness, fatigue, GI distress, constipation, low BP
what is COPD
airway obstruction with increased airway resistance of airflow to lung tissues
what is restrictive lung disease?
a decrease in total lung capacity as a result of fluid accumulation or loss of elasticity of the lung
what class is albuterol
beta2 adrenergic agonist
what is albuterol used for
asthma, bronchospasms, can be prophylacically
MOA of albuterol
stimulates beta2-adrenergic receptors in the lungs, relaxes the bronchial smooth muscle, causing bronchodilation
contraindications of albuterol
milk protein hypersensitivity
labs to draw for albuterol
potassium level, blood glucose
adverse reactions of albuterol
HYPOKALEMIA
in high doses: tachycardia, palpations, tremors, headache
side effects of albuterol
muscle cramps, tremors, CNS effects