respiratory medications Flashcards
rhonchi/coarse
excess mucous in the airways; inspiration or expiration; CF, pneumonias, bronchitis, chronic smokers, {cough, antibiotics}
rales/crackles
fluid in and around the alveoli; inspiration only; CHF {Diuretic ie Lasix}
wheezes
obstruction or narrowing of the airways; inspiration and/or expiration {bronchodilators}
diminished/decreased breath sounds
cant hear anything during deep breath; atelectasis {cough and deep breath, incentive spirometer}
histamine receptors
when stimulated by histamine cause rhinorrhea, itching, and sneezing.
antihistamine competes with ______ preventing ______
competes with histamine for receptor sites thus preventing a histamine response.
anticholinergic side effects
drowsiness, blurred vision, dry mouth, urinary retention, constipation
antihistamine SE
anticholinergic effects- drowsiness, blurred vision, dry mouth, urinary retention, constipation
increase in blood sugar and intraocular pressure
caution antihistamine use with
HTN, diabetes, glaucoma, renal disease, prostate disease
other uses of 1st generation of antihistamines
hypersensitivity reactions, motion sickness, sleep aid
2nd generation antihistamines
non-sedating antihistamines cause less drowsiness and sedation.
use for 2nd generation antihistamines
Primarily used for seasonal allergies
cautions decongestant use with
HTN, hyperthyroidism, CV disease, glaucoma, BPH.
overuse of decongestants results in
rebound nasal congestion
do not use nasal sprays longer than
5 days
can cause rebound nasal congestion
intranasal steroid agents
Local corticosteroid used in conjunction with antihistamines and decongestants to help with congestion associated with allergies.
response for intranasal steroid agents takes
2-3 weeks
given by inhalation
discontinue if symptoms dont subside
are intranasal steroid agents associated with rebound congestion?
no
SE of intranasal steroid agents (fluticasone propionate (flonase))
epistaxis, nasal burning, irritation to nasal mucous membranes
antitussives should not be used in patients
with excessive secretions who need to be able to cough up the secretions i.e. asthma, emphysema.
SE of codeine
drowsiness, nausea, constipation, respiratory depression
expectorants are used in combination with
analgesics, antihistamines, decongestants and antitussives.
side effects of guaifenesin (robitussin)- expectorant
N&V, dizziness, headache
mucolytics
break up secretions
for COPD, pneumonias
mucomyst antidote for tylenol