pleural Flashcards

1
Q

visceral pleura lines the

A

lungs

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2
Q

parietal pleura lines the

A

mediastinum, diapghragm and chest wall

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3
Q

Costal & peripheral diaphragmatic pleura innervated by _______. Pain referred to __________

A

Costal & peripheral diaphragmatic pleura innervated by intercostal nerves. Pain referred to chest wall.

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4
Q

Central diaphragmatic pleura: innervated by ________ Pain referred to ___________

A

Central diaphragmatic pleura: innervated by phrenic nerve. Pain referred to ipsilateral shoulder.

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5
Q

how is the mechanical coupling of lungs against throacic wall maintaines?

A

by preventing gas and liquid accumulating

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6
Q

transudate

A

plasma ultrafiltrate due to altered starling forces

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7
Q

what sterling forces are altered in pleural effusions that cause transudate

A
  • increase in hydrostatic pressure in the capillary - decrease in oncotic pressure in the capillary
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8
Q

exudate

A

protein-rich fluid results from increased capillary leakage secondary to inflammation or disease of pleural surface

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9
Q

major etiology of transudate (4)

A
  • CHF - nephrotic syndrome - cirrhosis - atelectasis
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10
Q

major etiology of exudate (5)

A
  • tumor - pneumonia - TB - pulmonary embolism - collagen vascular disease
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11
Q

do effusions cause pain? what is the pain?

A

effusions do not cause pain - it is a sign of parietal pleura irritation by the process causing the pleural effusion

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12
Q

what are some of the physical signs of an effusion?

A
  • decrease in chest excursion - decrease in tactile fremitus - decrease or absent sounds over the effusion
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13
Q

loculated pleural effusion (3)

A
  • empyema - hemothorax - malignancy
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14
Q

what do you want to evaluate when considering pleural effusion?

A
  • protein - LDH
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15
Q

pleural fluid protein/ serum protein > 0.5

A

exudate

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16
Q

pleural fluid LDH/serum LDH >0.6

17
Q

pleural fluid protein < 2.9

A

transudate

18
Q

leading cause of pleural effusion (2)

A
  • CHF: transudate - pneumonia: exudate
19
Q

hepatic hydrothorax

A

caused by cirrhosis of the liver leading to transudative fluid moving to pleural space

20
Q

parapneumonic effusion

A

sterile exudate

21
Q

empyema

A

organisms or pus

22
Q

what does it mean when we see tumors in the pleural space?

A

poor prognosis

23
Q

chylothorax how does the exudate look like?

A

pleural effusion due to leakage of chyle due to lymphoma - exudate= milky and has high triglycerides

24
Q

how do you treat transudate? exudate?

A
  • transudate- treat underlying cause - exudate- might require further intervention such as in the case of a hemothroax
25
small pneumonia
effusion\<10 mm
26
large effusion
\> 10mm and thoracentesis is indicated
27
pneumothorax will present as _______ to percussion and the degree of collapse depends on
present as hyperresonance and the degree of collapse depends on size of PTX and elasticity of lung
28
- trachea shifted to contralateral - compressed left lung - mediastinum shifted to contralateral side - diaphragm depressed and inverted contour
tension pneumothorax
29
primary simple pneumothorax
spontaneous caused by small subpleural blebs that rupture
30
secondary complicated pneumothorax
occurs in underlying disease like COPD
31
iatrogenic pneumothorax
most common; puncture of the visceral pleura during invasive procedures
32
loculated pleural effusion
33
tuberculosis- exudate lymphocytic