Upper Respiratory Flashcards
Average number of colds annually for adults and for children
adults 2-4
children 4-12
virus causing colds
rhinovirus
When are colds most contagious?
1-4 days before symptoms develop and during first 3 days of cold
antihistamine cold medicine mechanism of action
block H1 receptors, competing with histamine for binding sites.
What happens when Histamine-1 receptors are stimulated?
respiratory extravascular smooth muscle constriction, vasodilation
What happens when H2 receptors are stimulated?
gastric acid secretion
Diphenhydramine drug type
first generation OTC antihistamine
benadryl mechanism of action
competes with histamine for binding at H1 receptors
THIS DRUG is an OTC remedy for allergic rhinitis, cold, hives, and prevention of motion sickness
diphenhydramine hydrochloride
Should benadryl be used for an acute asthma attack or COPD?
NO
Should benadryl be used on neonates or hepatically impaired patients?
no
Narrow angle glaucoma, prostatic hypertrophy, urinary retention, pregnancy & breastfeeding are CAUTIONS for THIS DRUG
benadryl
hypotension, palpitations, and psychosis are adverse reactions for THIS DRUG
benadryl
The most common side effects of this drug are dry mouth & fatigue
benadryl
What should the nurse assess before benadryl administration?
respiratory status, urinary dysfunction, CBC