Obstructive Lung Diseases Flashcards
(49 cards)
4 groups fo Obstructive diseases
Acute upper resp infection
Asthma
COPD
Miscellaneous resp disorders
What accounts for 95% of URIs
Infections Nasopharyngitis
Most URI’s involve what type of pt
pedatric pt
Children with URI are at higher risk for what
hypoxemia, laryngospasmn, breath holding, coughing
A stable URI in someone is ok for what
surgery
If surgery is cancelled due to URI it should not be rescheduled for how long
6 weeks
Use of what in someone with an acute URI may reduce risk of laryngospasam
LMA
What may allow for a smoother emergence
deep extubation
What resp events in pts with acute URI can occur
laryngospasam, airway obstruction, post intubation croup, desaturation, atelectasis
Asthma
Chronic inflmmation of mucosa of lower airways
Astha results in edema in what part of the airway
bronchi
Main inflammatory mediators in asthma
histamine, prostglandin d2, leukotrienes
Asthma is episodic dz with _____ exacerbations and _____ periods
acute
asymptomatic
Diagnosis of asthma is based on PFTs that show
airway obstruction that responds to treatment with bronchodilators
What is the typical FEV1 in a symptomatic asthmatic
< 35%
During a severe asthmatic attack what may increase
FRC
Would TLC increase or change in a severe asmatic attack
NO
Can a pt have asthma with a normal PFT test?
Yes: asmatha is an episodic illness
Durin and asthma attack tachynea and hyperventilation is c/b _________ reflexes of the lungs
Neural
Two most common findings on ABG in someone with symptomatic asthma
Hyocarbia, respiratory alkolosis
When does PCO2 increase based of the FEV1
<25%
First line treatment for mild asthma
Short acting inhaled B2 agonist
Following a short acting b2 agonist, what medication would be given next that reduce exacerbations and decrease hospitlization
Inhaled corticosteroids
Systemic coricosteroids are reserved for _______ asthma
severe