Pathophysiology of bronchial asthma

  • 7,586 views
Uploaded on

 

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
7,586
On Slideshare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
0
Comments
0
Likes
3

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. PATHOPHYSIOLOGY OF BRONCHIAL ASTHMA Precipitating Factors Predisposing Factors Environmental Factors Genetics Atmospheric Pollutants Race Allergens Age Exercise, Stress on emotional Gender upset, Chemicals, Medications IgE Stimulants Mast Cell Degranulation Asthma AttackAltered immunologic Increased airway Increased lung Impaired mucocilary Altered O2-CO2response resistance compliance function exchangeChemical mediators Mucus secretion, Lungs become Increase mucus Increase airwayare released inflammation, hyperinflated production resistance bronchospasmHistamine,Prostaglandins,Bradykinins, etc
  • 2. SPASM S/S: Slowed mucus Respiratory muscle works clearance harder Audible expiratory & inspiratory Accessory muscle Increased water loss Muscle fatigue and breathing from mucus exhaustion Nasal flaring Tachypnea Tachycardia Mucus becomes Respiratory Alkalosis increasingly viscous S/S: Wheezing Paroxysmal dyspnea Cough Production
  • 3. Without medical With Medical interventionsinterventionsIndividual compensates O2 Therapywithout increased RRRespiratory alkalosis Medications: Inhaled steroid, beta 2 adrenergic agents, bronchodilatorsHypoxemia V Opens the airway GOOD PROGNOSISHypoventilation Deep breathing and Health teachings coughing exercise Increase Fluid IntakeRespiratory acidosis Elevate HOB Coughing up thick Limit exposure to tenacious sputum allergens Minimize strenuousSevere hypoxemia Adequate rest activitiesDeathBAD PROGNOSIS