ISTH Overt DIC Score Calculator

Calculates the International Society on Thrombosis and Haemostasis (ISTH) overt DIC score using platelet count, fibrin markers, PT prolongation, and fibrinogen level. Score ≥5 indicates overt disseminated intravascular coagulation.

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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

Calculates the International Society on Thrombosis and Haemostasis (ISTH) overt DIC score using platelet count, fibrin markers, PT prolongation, and fibrinogen level. Score ≥5 indicates overt disseminated intravascular coagulation

Each component has a specific meaning:

  • Platelet count — The platelet count recorded for the scenario being assessed.
  • Fibrin markers — The fibrin markers recorded for the scenario being assessed.
  • PT prolongation — The pt prolongation recorded for the scenario being assessed.
  • Fibrinogen level — The fibrinogen level recorded for the scenario being assessed.

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

How to Use

Enter the platelet count, fibrin markers, PT prolongation, fibrinogen level for the scenario you are assessing. Calculates the International Society on Thrombosis and Haemostasis (ISTH) overt DIC score using platelet count, fibrin markers, PT prolongation, and fibrinogen level. Score ≥5 indicates overt disseminated intravascular coagulation. Use the isth dic score result to inform your calculation.

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Frequently Asked Questions