Chest and Lower Respiratory Tract Disorders Flashcards
alveoli
- responsible for ventilation and oxygenation
- if deflated can cause infection and business problems
atelectasis
closure or collapse of alveoli caused by excessive secretions
causes of acute atelectasis
- occurs in post op settings
- immobile
- anesthesia
- supine
- abdominal/cardiac surgery
- abdominal distention
- obstruction (mucus plugs)
chronic atelectasis
- similar to acute
- pulmonary infection may be present
symptoms of atelectasis
- insidious
- increased dyspnea
- cough
- sputum production
large area of lung affected sx
- marked respiratory distress
- tachycardia
- tachypnea
- pleural pain
- central cyanosis
assessment of atelectasis
- increased work of breathing and hypoxemia
- decreased breath sounds and crackles over affected area
diagnosis of atelectasis
- chest x-ray
- pulse ox (less than 90%)
hallmarks of severity of atelectasis
- tachypnea
- dyspnea
- mild to moderate hypoxemia
preventing atelectasis
- frequent turning
- early mobilization
- incentive spirometer
- tcdb
- respiratory treatments/metered dose inhaler
- hydration
- monitor i&o, bun, cr
management of atlectasis
- improve ventilation and remove secretions
- first line measures: ICOUGH
- other measures: PEEP, CPAB, bronchoscopy, CPT, Endotracheal intubation & mechanical ventilation, thoracentesis
pneumonia
inflammation of the lung parenchyma caused by various organisms
classifications of pneumonia
- CAP: acquired outside of hospital within 48 hrs
- HCAP: 48 hours after hospital admission
- VAP: 48 hrs after intubation
causative agents of pneumonia
- s. pneumoniae: young with no comorbidities
- h. influenzae: elderly and those with comorbid ilnesses
pneumonia risk factors
- Heart failure: fluid overload that travels to the lungs
- COPD: decrease ventilation and perfusion
- Aids & diabetes: compromised immune system
- alcholism
- flu: increased risk for developing pneumonia
- cystic fibrosis: high amount of resp. secretions; recurrent pneumonia