9 - ARDS Flashcards
1
Q
what is used to determine if edema fluid is transudate or exudate?
A
edema fluid : plasma protein ratio
0.5 = exudate
2
Q
2 direct and 3 indirect common causes of ARDS
A
direct: aspiration, PNA
indirect: sepsis, severe trauma, shock
3
Q
MCC ARDS
A
PNA
4
Q
difference btwn ARDS and ALI
A
ARDS is more hypoxemic
5
Q
highest mortality cause of ARDS
A
sepsis
6
Q
risk factors for ARDS
A
older age
metab acidosis
chronic alcoholism
more acute illness
7
Q
3 phases of ARDS
A
exudative (wk 1) - neutrophils, hyaline membranes
proliferative (wk 2) - interstitial infiltrates, early fibrosis, prolif of type 2 pneumocytes
fibrotic (>21d) - fibrosis - most dont get this
8
Q
triad of resp failure, neurologic impairment and petechial rash seen in
A
fat embolism syndrome
9
Q
lung support in ARDS
A
ventilation - low tidal vol at 6 ml/kg recruit lungs by Pos End Expiratory Pressure (PEEP) minimize O2 tox by keeping FiO2 <60% minimize acidosis diuresis to keep on dry side
