Table 1 Fluid challenge protocol

CVP at start:

≤ 8 if PEEP ≤15

200 ml/10 min

≤ 12 if PEEP >15

200 ml/10 min

≤ 10 if PEEP ≤15

100 ml/10 min

≤ 14 if PEEP >15

100 ml/10 min

≤ 12 if PEEP ≤15

50 ml/10 min

≤ 16 if PEEP >15

50 ml/10 min

CVP during infusion:

increase >5

stop

CVP after 10 min:

increase ≤2

continue

2< increase ≤5

wait 10 min

increase >5

stop

CVP after 10 min waiting:

increase >2

stop

increase ≤2

repeat