respiratory function (1) Flashcards
chronic inflammatory disorder of the airway, airway has increased responsiveness to stimuli
asthma
what do bronchioles do in asthma
constrict
in asthma, exposure to triggers causes cells in the airway to release what?
proinflammatory chemical mediators (histamine, prostaglandins, and leukotrines)
what are symptoms of asthma exacerbation?
- dyspnea/tachypnea
- insp/exp wheezing
- use of accessory muscles
- cough
- discomfort, irritbility, restlessness, anxiety
- chest tightness
which of the following are asthma triggers?
a)exercise
b)food additives
c) emotions
d) temp chamges
e) all
all
what does the diagnosis of asthma include?
- symptoms of wheezing/obstruction
- improvement of wheezing/obstruction with short acting beta adrenergic and oral corticosteroid med
- exclusion of other diagnosis
- pulmonary function testing (spirometry) assess airway function (older than 5-6 years) (need to follow directions)
What meds would be used for status asthmaticus
- albuterol
- methylprednisolone or IV solumedrol
- prednisone or prednisolone orally
which asthma med is a beta adrenergic blocker that causes bronchodilation
albuterol
which asthma meds decrease inflammation?
prednisone/prednisolone/methylprednisolone
what are the 2 ways albuterol can be given?
nebulizer/MDI
steps of using MDI with mask
- shake 30 sec
- put mask on
- push first puff
- take 6 breaths
- wait 30 sec between puffs
steps for using MDI with only spacer and mouthpiece (no mask)
- shake 30 sec
- slow deep breath, let out
- put mouthpiece in, push first puff
- slow breath 3-5 sec
- hold 10 sec
- wait 30 sec between puffs
what are the ages for mouthpieve vs. mask for MDI
mask used up to 5 y.o., then mouthpiece
what is the purpose of albuterol
relax bronchial smooth muscle
side effects of albuterol
- tachycardia
- nervousness
- nausea
- headachesa
how long are oral corticosteroids usually used for?
5 days
what asthma meds decrease inflammation
oral corticosteroids
what asthma meds inhibit bronchoconstriction?
anticholinergics
what meds are used short term MDI with exacerbation of asthma
anticholinergics
what is the onset of anticholinergics?
30-90 min
what is the most effective long-term control therapy for asthma
inhaled corticosteroids
how are inhaled corticisteroids administered
MDI with spacer
what can inhaled corticosteroids cause?
thrush and dyspnea
what is important to do after inhaled steroid use
rinse mouth
what is the purpose of leukotrine receptor antagonist?
prevent asthmatic episodes
what is an objective assessment of signs and symptoms of asthma
pediatric asthma score
what is looked at for a pediatric asthma score?
respiratory rate, oxygen, retractions, dyspnea, auscultation
what is a history of coughing, breathlessness, chest pain, or wheezing during and after exercise
exercise induced bronchospasm