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Table 4 Clinical Severity Scoring of Patients with Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome[22]

From: Thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS): a 24-year clinical experience with 178 patients

Score Neurologic
Symptoms
Renal
Insufficiency
Platelet Count
(/μL)
Hemoglobin Level
(g/dL)
0 None None > 100,000 > 12
1 Confusion, lethargy Cr* = 1.5–2.5
Proteinuria
Hematuria
20,000 – 100,000 9 – 12
2 Seizure, coma, focal deficits Cr > 2.5 Dialysis < 20,000 < 9
  1. Abbreviation: Cr: serum creatinine (in mg/dL).