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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Shock. 2014 May;41(5):378–387. doi: 10.1097/SHK.0000000000000142

Figure 1.

Figure 1

Observational data suggests that acute respiratory distress syndrome (ARDS) onset ranges from 5 hours to 3.7 days, with a median onset of 2 days. Increasing acuity and prolonged emergency department (ED) lengths of stay (LOS) for the critically ill suggests that the time spent in the ED may represent a window of opportunity (“golden hours”) to initiate ARDS prevention strategies. Solid circles indicate patients not progressing to ARDS and dashed circles indicate the development of ARDS.

PaO2:FiO2- partial pressure of arterial oxygen:fraction of inspired oxygen; CRS- respiratory system compliance; ED- emergency department; LOS- length of stay