pleural disease Flashcards
(35 cards)
parts of the pleura
visceral pleura
parietal pleura
pluid fluid
straw coloured fluid that is generated through filtration of the proteins from the pleura .
contents of the pleural fluid
macrophage
lymphocytes
mesothelial cells
what is pleural pressure
pressure that is exerted by the pleural fluid that is mostly negative from negative 3 to negative 5 of water
gradient of pleural pressure
most negative at the apex and least negative at the base
pleural effusion
collection of fluid into the pleural space
collection of air in the pleura
pneumothorax
mass in the pleural space
mesothelioma
hemothorax
blood in the pleural cavity
types of pleural effusion
transudate
exudate
protein count exudate
generation of the pleural fluid
pleural lymphatics in the parietal pleura
transudate
there is collection of pleural fluid as a result of a non -inflammatory reaction
exudate
accumulation of fluid that is of high protein content protein content is more than 3g per decilitre
lights criteria
for transudates , ratio of protein in the pleural fluid to serum fluid ratio should be greater than 0.5
causes of transudates
organ failure such as liver cirrhosis and left ventricular failure
causes of exudates
malignancy ( pulmonary and non -pulmonary)
para-pneumonic effusions
empyema
tuberculosis
investigation of pleural effusion
ultrasound which is conducted by a qualified technician
chest x -ray
ct of the thorax
clinical feature of effusion on examination
dull percussion note
pleural fluid analysis
aspiration
inspection of the fluid
pH bedside ABG machine , biochemistry , microbiology , cytology
management of transudate
treatment of the underlying cause and this may not need CT imaging
management of exudate
Exudate : Unless cause identified will need further investigation for eg further imaging , and or pleural biopsy
causes of a pneumothorax
1.primary spontaneous which happens on someone with no pre-existing conditions.
2.secondary spontaneous - happens because there is a pre-existing lung disease
3.traumatic caused by injury to chest wall
latrogenic
4.tension - air is so much that it pushes the lung to the other side of the chest wall .there is complete collapse of the lung , there is tracheal shift
symptoms of tension pneumothorax
chest pain
shortness of breath
rapid heart rate
shallow breathing
anxiety
blue or ashen skin
presentation of a pneumothorax
sudden chest pain and breathlessness
happens in tall thin and young men
with a history of biopsy /line insertion /mechanical ventilation