fund nursing 51 - asthma Flashcards
asthma is
chronic but reversible. different that COPD. it’s really upper bronchi. intermittent airway obstruction. muscles around bronchioles tighten.
mortality for emphaysmia and chronic bronchitis
Mortality is >50% within 10 years of diagnosis. we try to slow progression.
chronic airway limiting diseases cause
and increase in CO2 so it causes hypercapnia
asthma more common in women or men?
women, but kids it’s boys
is alveoli affected with asthma?
nope, just bronchioles. triggered by an irritant. dust mites, smoke, etc. viral infections, nasal polyps. meds, emotional stress.
asthma increases
work of breathing to maintain MV (minute volume - this is what gets rid of CO2)
asthma and mucus?
Leads to an increased number and size of mucous glands and secretion of thick mucous
during asthma attack, where does air get trapped? (A for asthma and alveoli)
the alveoli so we can’t bring down CO2 hypoxic and hypercapnic. also causes tachycardia from stress maybe.
cholinergic receptors are what type of cells?
mast cells
vitamins associated with asthma (Ce, you have asthma)
Diets low in vitamins C, E and omega-3 fatty acids, obesity
asthma diagnosis
Diagnosis
History & Symptoms
PFTs – especially peak flow (spironmetry, pulse ox, use every morning, measuring expiratory volume)
Methacholine challenge test (MCT
Tests airway sensitivity to detect asthma
Increasing amounts methacholine inhaled causes airways to spasm and narrow if asthma present
Measures spirometry before & after and is + if FEV drops by 20% or more
Bronchodilator given at end of test to reverse effects
asthma using peak volume flow - measures what?
expiratory volume
Peak flow meter - how to use (peaking 3 times a day)
do 3 times take a break in between. do same time every day. sometimes twice a day.
asthma meds - in order (SMAL AB - asthma meds are big A little A)
1) steroids
2) mast cell stablizers
3) antihistamines and leukotrienes
4) anticholeringenics and bronchodilators
asthma listen to what part of lungs (asthma is everywhere)
brioch, bronchi-vesic, vesic.
hydrate or not?
hydrate but don’t overhydrate. usually use a mask not cannula.
CPAP expands what? (alvin with a cpap)
alveoli
short acting meds - within 5 min (terol is shorty)
ending in terol, terbutaline and epinephrine
long acting meds - within 20-30 min (salmon and meta are long)
salmetrol, metaproterononal tablets, and other tablets
status ashtmatics in what respiratory state? (status is almost gone)
respiratory distress
status asthmatics triggers (latin from fires and cold)
upper respiratory infection, wildfire, or exercising in cold
meds to status asthmatics (maticus needs epi pen and maggie)
epinephrine, corticosteroids, magnesium sulfate (relax smooth muscle), terbutaline, leukotriene inhibitors (anti inflammatory)