Respiratory COPD Flashcards
COPD is?
emphysema and/or bronchitis (most patients have both)
COPD obstructs?
expiratory airflow
What are these signs and symptoms of?
feelings of not having enough air to breathe, progressive dyspnea and fatigue.
COPD
what are pathologic changes that occur to the airways of patients with COPD?
lung parenchyma & the vasculature
COPD: inflammation and narrowing of the airways leads to?
loss of pulmonary function, lung destruction, and impaired gas exchange. (increased mucus-producing cells, chronic inflammation in varying parts of the lungs, structural changes that result in a cycle of destruction and repair - airflow limitation, more susceptible to infection)
COPD: respiratory infections is the leading cause of?
exacerbations.
___________ is when air sacs or alveoli become enlarged with lack of structure in the lung when breathing occurs.
emphysema
What are emphysema breath sounds?
Diminished.
areas of destroyed alveoli are called?
bullae
the blebs which make up the bullae are fragile and susceptible to injury, possible _________, which is one of the complications for ______________.
pneumothorax,
end-stage emphysema
___________ is the presence of cough and sputum production for at least 3 months in each of two consecutive years.
bronchitis
Bronchitis: b/c of chronic inflammation and mucus hyper secretion lung function?
declines with repeated infections and exacerbations
Bronchitis causes __________ of the airways, which causes the airway lumen to become smaller, which predisposes the patient to have repeated episodes of ____________.
remodeling,
bronchospasm
Major modifiable risk factor for COPD?
exposure to smoke!
What are the three categories of risk assessment for smokers?
smokers, non-smokers(quit), and never smokers.
20 - 30 % of smokers have?
COPD
What irritates the airways and results in mucus hyper secretion and airway inflammation?
smoking
Smoking paralyzes the mucociliary escalator, which inhibits?
expectoration of mucus.
What is an example of COPD that is a non modifiable risk factor?
Alpha 1 Antitrypsin Deficiency - genetic leads to liver and lung disease.
_______ inhibits/protects the lungs from injury?
A1AT
Alpha 1 Antitrypsin can be?
treated if diagnosed (only 5% have been ID’ed)
What is the treatment for alpha 1 antitrypsin?
Reducing risk and aggressive treatment of URI; Augmentation therapy, infusions of the human protein from donors.
Other non-modifiable factors of COPD:
prematurity, age-related changes to the respiratory system
comorbid conditions, co-existing disorders of COPD:
asthma, OSA, pulmonary fibrosis, bronchiectasis, HF, CVD, PVD, stroke, anxiety, and depression.
_____________ is abnormal widened bronchioles related to infection.
bronchiectasis
COPD: Systemic functions affected are r/t?
hypoxemia and lack of tissue perfusion
COPD: Skeletal functions affected?
muscle weakness, anorexia, cachexia(wasting), decreased muscle mass, barrel chest
COPD: Cardiovascular functions affected?
cor pulmonale, arrhythmias
COPD: Neurologic functions affected?
changes in cognitive function r/t brains affinity for oxygen, insomnia, sleep disturbances
COPD: Psychiatric functions affected?
anxiety, depression
COPD: Endocrine functions affected?
side effects from medications, Cushing’s syndrome r/t corticosteroid treatment.
COPD: End-stage lead to problems with gas exchange which can lead to?
respiratory failure.
Two predictors of disease progression for COPD?
increased frequency of exacerbations and weight loss.
Leaning forward, arms braced, maximizing pulmonary expansion is called?
tripod position
End-stage COPD:
- impaired gas exchange
- chronic hypoxemia
- hypercapnia
- respiratory failure
_________ _________ is suspected in patients with extreme dyspnea and fatigue.
pulmonary hypertension
Chronic hypoxia leads to?
pulmonary arterial narrowing of the vessels and remodeling.
Pulmonary artery constriction, resistance to blood flow leads to
increased workload on right ventricle.
When the right ventricle is compensating for pulmonary artery constriction; over time it will ________ and ________ causing _____ ___________ ____________.
This type of side sided heart failure is called?
enlarge and dilate.
right ventricular hypertrophy
cor pulmonale
What are these S/S related to:
- fluid is evident, systemically.
- JVD
- abdominal distention (ascites)
- hepatomegaly and peripheral edema
- pulmonary embolus
cor pulmonale
COPD: diagnostic tests
- pulmonary function tests
- spirometry
- chest x-ray
- CT
- EKG
- CBC
- BNP
Pulmonary function tests are used to?
help confirm the diagnosis, determine severity, and monitor progression.
PFTs are not performed in the acute setting, or on admission with?
exacerbation
Spirometry is used to evaluate _________ __________, and compared to normal values for age, gender, race, weight, and height.
airflow obstruction
With obstruction the patient has difficulty ________ or cannot forcibly ______ ____ from lungs.
- exhaling
- exhale air
Obstruction reduces?
forced expired volume in one second (FEV1)
Lung obstructive disease is defined as?
FEV1 of less than 80% OR a ratio of FEV1/FVC of <70%
When lung function declines and the FEV1 is less than 50%, the COPD is classified as?
severe.