Vital signs
|
Return to normal
|
Transient improvement, recurrence of decreased blood pressure and increased heart rate
|
Remain abnormal
|
Estimated blood loss
|
Minimal (10–20 %)
|
Moderate and ongoing (20–40 %)
|
Severe (>40 %)
|
Need for more crystalloid
|
Low
|
Low to moderate
|
Moderate as a bridge to transfusion
|
Need for blood
|
Low
|
Moderate to high
|
Immediate
|
Blood preparation
|
Type and crossmatch
|
Type-specific
|
Emergency blood release
|
Need for operative intervention
|
Possibly
|
Likely
|
Highly likely
|
Early presence of surgeon
|
Yes
|
Yes
|
Yes
|