PulmCrit: ARDS vs. pseudoARDS – Failure of the Berlin definition.

Did this woman have ARDS?  According to the Berlin Definition shown below, she had moderately severe ARDS while on conventional low tidal-volume ventilation (P/F ratio of 166).  However, she didn't meet the definition of ARDS while she was APRV, a few hours earlier (P/F ratio 475).  Her overall clinical course with prompt recovery and weaning off oxygen is inconsistent with the natural history of ARDS.

EMCrit Project by Josh Farkas.