This calculator evaluates the following Clinical Criteria:
- Platelet count <30,000/microL
- One or more indicators of hemolysis:
Reticulocyte count (percentage) >2.5%; or
Haptoglobin undetectable; or
Indirect bilirubin >2.0 mg/dL [>34 mcmol/L] - No active cancer in the preceding year
- No history of solid organ or hematopoietic stem cell transplant
- Mean corpuscular volume (MCV) <90 femtoliters
- International normalized ratio (INR) <1.5
- Creatinine <2.0 mg/dL [<177 mcmol/L]
References
Legal Notices and Disclaimer
All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. EBMcalc is NOT a medical device. EBMcalc NEVER stores cookies or other persistent data in user's browsers. Click here for full notice and disclaimer.
EBMcalc is Copyright © 1998-2026 EBMcalc, LLC [Build 282297 v26.3]
