Pleural effusions - pneumothorax Flashcards
pleural effusions - definition
excess accumulation of fluid between pleural layers
pleural effusions causes
restricted lung expansion during inspiration
pleural effusion treatment
thoracentesis to remove fluid
pleural effusions types
- transudate
- Exudate
- Lymphatic
pleural effusion tranudate - pathophysiology
increased hydrostatic or decreased oncotic pressure
pleural effusion tranudate - situations that cause it
- Heart failure
- nephrotic syndrome
- hepatic cirrhosis
pleural effusion tranudate - fluid characteristics
decreased protein
pleural effusion exudate - pathophysiology
increased vascular permeability
pleural effusion exudate - situations that cause it
- malignancy 2. pneumonia 3. trauma
4. collagen vascular disease
pleural effusion exudate - management
must be drained due to risk of infection
pleural effusion lymphatic - also known as
chylothorax
pleural effusion exudate - fluid characteristics
- increased protein content
2. cloudy
pleural effusion lymphatic - fluid characteristics
- increased triglycerides
2. Milky-appearing fluid
pleural effusion lymphatic - due to
thoracic duct injury from trauma or malignacy
pleural effusion lymphatic - due to thoracic duct injury from
trauma or malignacy
pneumothorax - definition
accumulation of air in pleural space
pneumothorax - symptoms and signs
- unilateral chest pain 2. dyspnea 3. hyperresonance
- UNILATERAL CHEST EXPANSION 5. decreased tactile fremitus 6. diminished breath sounds
ALL ON THE AFFECTED SIDES
pneumothorax - types
- primary spontaneous
- secondary spontaneous
- Traumatic spontaneous
- Tension (can be any of the above)
primary spontaneous pneumothorax is due to
rupture of apical blebs or cysts
primary spontaneous pneumothorax occurs most often in
tall, thin, young males
secondary spontaneous pneumothorax is due to
- diseased lung (bullae in emphysema, infections)
2. mechanical ventilation with use of high pressures (barotrauma)
traumatic pneumothorax is caused by
blunt (rib fracture) or penetrating (gunshot) trauma
tension pneumothorax is caused by
any of the others (traumatic, primary or secondary spontaneous)
tension pneumothorax pathophysiology
air enters pleural space but cannot exit –> increasing trapped aire –> tension pneumothorax
tension pneumothorax - trachea
trachea deviates away from affected lung
Tension pneumothorax - management
immediated needle decompression and chest tube placement