Care of Patients With Noninfectious lower respiratory problems Flashcards
Asthma Risk Factors:
- Inherited Disorder
- Environmental Factors: Viral infection, Allergens, pollutants
- Excitatory States: Stress, Laughing, Crying
- Aspirin & NSAIDS
- GERD
- Exercise, changes in temperature, strong odors
Asthma Pathophysiology: Early Phase
Shortness of breath, chest tightness, wheezing
Asthma Pathophysiology: Immune Activation
IgE, Mast cells, chemical mediators
Asthma Pathophysiology: Vasodilation
Edema in airway, attempt to dilute the allergen
Asthma Pathophysiology: Bronchospasm
narrowing of bronchial tubes by constriction of the smooth muscle around and within the bronchial walls
Asthma Pathophysiology also includes Late Phase
Bronchial Hyperresponsiveness, cyanosis (late sign)
Asthma Clinical Manifestations
Cough Wheezing Chest tightness Dyspnea Nasal flaring Use of accessory muscles Cyanosis
Nursing Interventions
Auscultate breath sounds Monitor respiratory pattern Monitor oxygen saturation Elevate head of bed Deep breathe Activity Encourage fluid intake
Asthma Treatment
Inhaled Beta2 agonists Corticosteroids Anticholinergics Mast cell stabilizers Leukotriene modifiers Oxygen
Chronic Obstructive Bronchitis Risk Factors
Chronic productive cough Smoking Exposure to air pollution Older adults Repeated infections
Chronic Bronchitis Pathophysiology:
Irritant triggers:
- Inflammation of airway
- Infiltration of inflammatory cells
- Continuous irritation and inflammation
- Bronchial edema
- Hypersecretion of mucus
- Bacterial colonization
- Airway obstruction: not alveoli
- Air trapping
Chronic Bronchitis Clinical Manifestations:
Acute versus Chronic Productive cough “smoker’s cough” Decrease exercise tolerance Wheezing Shortness of breath Prolonged expiration
Emphysema Risk Factors
Cigarette smoking
Alpha1-antitrypsin deficiency
Air pollution
Occupational chemicals or dust
Emphysema Pathophysiology:
Irritant or Alpha 1 antitrypsin deficiency triggers:
- Inflammation of airway
- Infiltration of inflammatory cells: Inhibition of normal endogenous antiproteases
- Increased protease activity
- Destruction of alveolar septa: Loss of elastic recoil
- Blebs
- Bullae
- Air trapping
Emphysema Clinical Manifestations:
- Dyspnea on exertion
- Dyspnea at rest
- Anteroposterior diameter of chest enlarges
- Chest hyperresonant sound with percussion
- Cyanosis lips
- Neck vein distention
- Pitting peripheral edema