Lee et al reported criteria for post-operative coagulopathy. The authors are from the University of Washington and Harborview Medical Center in Seattle.
Criteria for diagnosis: any disorder reducing the ability of the blood to clot
Parameters:
(1) INR
(2) platelet count per microliter
(3) plasma fibrinogen in mg/dL
INR
Platelet Count
Fibrinogen
Severity Level
<= 1.4
> 100,000 per µL
>= 100 mg/dL
0
1.5 to 1.9
NA
NA
1
2.0 to 2.9
NA
NA
2
>= 3.0
NA
NA
3
NA
50,001 to 100,000
NA
1
NA
20,0001to 50,000
NA
2
NA
<= 20,000 per µL
NA
3
NA
NA
< 100 mg/dL
1
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