cardiopulm 2 - pathology of the lungs Flashcards
what is acute respiratory distress syndrome (ARDS)
sudden respirtory failure 2/2 fluid accumaltion in the aveoli
fluid leaking from small blood vessels into the aveoli
what population does ADRS normally occur in
critially ill
what are the signs and sym of ARDS
severe SOB
labored rapid breathing
hypotension
confusion
extreme fatigue
cough
what is the treatment for ARDS
oxygen or supplement oxygen
it is important to find out the cause of ARDS becasue this determines how to treat it
what is asthma
chronic inflammation of the airways caused by an increase in airway sensitivity to various stimuli
what are the signs and sym of asthma
wheezing, chest tightness and slight SOB
severe: cyanosis, flaring nostrils
what is the treatment for asthma
reduce exposure to known triggers
two classes of med: anti-inflammatory and bronchodilators
what are examle of anti-inflammatory agents
corticosteriods
cromolyn sodium
leukotriene modifiers
these are preventive action
what are examples of bronchodilators
beta-adrenergic agonist
methylanthines
antichlonergics
what is atelectasis
a condition in which one or more of the lungs collapse or do not inflate properly
what can cause atelatasis
conditions and factors that prevent deep breathng and coughing
post-op, pleural effusions, tumor, ARDS, asthma, COPD, cystic fibrosis
what are the signs ans sym of atelatasis
small area - no sym
large area - cynaosis, SOB, increased breathing rate, and increase HR
what is bronchiectasis
a progressive obstructive lung disease that produces abnormal dilation of the bronchus
irreversible condition - the brochi wall weakens over time and allows for dilation
what often causes bronchiectasis
chronic infections, aspiration, cystic fibrosis, or immue system impairments
what are the signs and sym of bronchiectasis
consistent productive cough, hemoptysis, wirght loos, anemia, crackle and wheeze, and lous breath soundns
what is bronchitis
inflammation of the bronchic
hypertrophy of the mucus secreting glands, increased mucus secretions, insufficient oxygenation 2/2 increased mucus
what is primary causes of chronic bronchitis
citgrette smoking
what are the signs and sym of bronchitis
persistant cough
thick spetum
increase used fo accessory muscles
wheezing, dyspnea, cyanosis
what is the treatment for bronchitis
improving breathing - rest, fluids, breathing moist air cough suppresent
chronic - antibiotics, anti-inflammatory agents, brochodilators
what is COPD
group of lung diseases that block airflow 2/2 narrowing of the brochial tree
what are the two main conditions that make up COPD
emphysema and chronic bronchitis
what is total lung capacity
the volume of air that is in the lungs after max expiration
what is residual volume
the volume of the gas remaining in the lungs at the end of maximal expiration
25% of total lung volume
what lungs volumes chnage with COPD
total lung capacity and residual volume
what is the major cuase of COPD
smoking
what are the signs and sym of COPD
excessive mucus production
chronic productive cough
wheezing
SOB
fatigue
reduced exercise capicity