DIC Score — Disseminated Intravascular Coagulation (ISTH)

Calculate the ISTH Disseminated Intravascular Coagulation (DIC) score using platelet count, D-dimer, PT prolongation, and fibrinogen to diagnose overt DIC (score ≥5) in critically ill patients.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate the ISTH Disseminated Intravascular Coagulation (DIC) score using platelet count, D-dimer, PT prolongation, and fibrinogen to diagnose overt DIC (score ≥5) in critically ill patients

Each component has a specific meaning:

  • Platelet count — The platelet count recorded for the scenario being assessed.
  • D-dimer — The d-dimer recorded for the scenario being assessed.
  • PT prolongation — The pt prolongation recorded for the scenario being assessed.
  • Fibrinogen — The fibrinogen recorded for the scenario being assessed.

Note: Interpret the dic score result against the thresholds and context described above.

How to Use

Enter the platelet count, D-dimer, PT prolongation, fibrinogen for the scenario you are assessing. Calculate the ISTH Disseminated Intravascular Coagulation (DIC) score using platelet count, D-dimer, PT prolongation, and fibrinogen to diagnose overt DIC (score ≥5) in critically ill patients. Use the dic score result to inform your calculation.

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