Pneumothorax Flashcards

1
Q

define pneumothorax

A

air in pleural space (between parietal and visceral pleura )

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2
Q

what are the 3 types of pneumothorax ?

A

spontaneous/primary
secondary
traumatic

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3
Q

what is the risk factor for pneumothorax ?

A

connective tissue disorder

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4
Q

give an example of connective tissue disorder

A

marfans

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5
Q

how can you differentiate between small and large pneumothorax ?

A

measured at level of hilum

small < 2cm rim of air
large > 2cm rim of air

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6
Q

what are features of pneumothorax ?

A

acute onset pleuritic chest pain, especially on insperation

SOB

Tachycardia

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7
Q

what would you 4 things may you find on examination of pneumothorax ?

A

hyper - resonant percussion note
reduced expansion on affected side
quiet breath sounds on auscultation
Hamman’s sign ( click on ausculation left side in time with heartbeat)

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8
Q

what would you do to further ivestigate pneumothorax ?

A

CXR

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9
Q

how would you manage pneumothorax ?

A

aspiration or/and chest drain

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10
Q

when would you do a chest drain immediately ?

A

if patient is:

unstable
bilateral
secondary to another pathology

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11
Q

how would you manage a patient who has pneumothorax < 2cm and has no SOB ?

A

no treatment as usually spontaneous resolves
follow up in 2-4 weeks of. CXR to see if resolved

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12
Q

how would you mange a patient with pneumothorax with SOB and > 2 cm ?

A

aspiration

if t fails twice then do a chest drain

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13
Q

why is tension pneumothorax an emergency ?

A

it can lead to cardiac arrest

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14
Q

what are signs of a tension pneumothorax ?

A

tracheal deviation AWAY from side
hyper-resonance on the affected side
Hypotension
raised JVP

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15
Q

what investigation do you use for tension pneumothorax ?

A

none as it is a clinical diagnosis

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16
Q

how would you manage tension pneumothorax ?

A

needle decompression (large bole cannula)
insert chest drain shortly after

17
Q

where is the site of chest drain ?

A

Triangle of safety

5th intercostal space nipple line
mid axillary line
anterior axillary line
above rib to avoid NV bundle that runs underneath