Obstruction

• Respiratory diseases characterised by increased airways resistance and airflow limitation are called:

  • Obstructive diseases
• Clinical Problems of Obstruction:

  • Reduced inspiratory flow
  • Further reduced expiratory flow
  • Air left in lungs after expiration
  • Air trapping
  • Hyperinflation
  • Altered respiratory mechanics
  • V/Q mismatch
  • Inadequate alveolar ventilation
  • Respiratory failure
• Reversal of Obstruction:

  • Bronchodilator therapy
  • Inhibit PNS
  • Excite SNS
  • Anti-inflammatory agents
  • Diuretics
  • Antibiotics
  • Physiotherapy
  • Bronchoscopy