Use the responsive three-column large-screen grid, two-column medium grid, and one-column mobile layout to capture weighted Caprini factors.
Sample profiles showing how weighted factors can accumulate.
| Example | Selected factors | Total score | Risk band |
|---|---|---|---|
| Patient A | Age 52, BMI 31, major surgery, surgery over 2 hours, smoker | 6 | Very High Risk |
| Patient B | Age 68, one prior VTE episode, one malignancy episode | 7 | Very High Risk |
| Patient C | Age 34, estrogen therapy, visible varicose veins | 2 | Moderate Risk |
This calculator uses additive weighted scoring.
Total Caprini Score = Sum of all applicable weighted risk factors
Age points = 0, 1, 2, or 3 based on age band
BMI points = 1 if BMI > 25, plus 1 more if BMI > 40
Procedure points = Current surgery weight + any qualifying recent procedure, injury, or mobility weights
Risk bands used here = 0–1 low, 2 moderate, 3–4 high, 5 or more very high
Follow a consistent review sequence for better documentation.
- Enter basic patient information such as sex, age, BMI, and assessment date.
- Select one current surgery profile, then add any qualifying recent surgery, injury, or mobility state.
- Check each one-point, two-point, three-point, and five-point factor that truly applies.
- Use the count inputs for repeated malignancies, prior VTE events, thrombophilia markers, or multiple lung diagnoses.
- Click the calculate button to show the score above the form and below the header.
- Review the result table, category badge, and Plotly chart before exporting CSV or PDF reports.
- Document any clinical nuance separately, because the score should support, not replace, clinical review.
Plain HTML FAQ list with concise answers.
1. What does the Caprini score measure?
It estimates a patient’s relative risk for venous thromboembolism by adding weighted clinical risk factors such as age, surgery, immobility, prior thrombosis, cancer, and thrombophilia history.
2. Why are some factors worth more points?
Higher-weight items represent stronger associations with thrombosis risk. Prior VTE, thrombophilia, major trauma, recent stroke, and major orthopedic procedures carry more weight than milder contributors.
3. Can the score change after surgery?
Yes. The score is dynamic. New immobility, infection, transfusion, central access, or postoperative complications can raise the total and should prompt reassessment.
4. Does BMI above 40 count more than once?
Yes in this 2013-style implementation. BMI above 25 adds one point, and BMI above 40 adds one additional point, giving two BMI-related points total.
5. How are female-specific factors handled?
This page applies estrogen therapy, pregnancy or postpartum status, and qualifying obstetric history only when they are relevant. They are grouped separately to keep the form clearer.
6. Why are there count inputs for some items?
Advanced scoring sometimes needs repeated malignancy episodes, more than one prior VTE event, multiple thrombophilia markers, or multiple lung diagnoses documented separately. Count fields help represent that detail.
7. Does the category alone decide prophylaxis?
No. The score supports risk stratification, but final prevention decisions also depend on bleeding risk, current status, procedure type, contraindications, and local institutional practice.
8. Why include export buttons and a graph?
Exports support documentation and review, while the chart gives a quick visual summary of the total score against common risk bands. Both features improve workflow communication.
This calculator is for educational and documentation support. It does not diagnose disease, prescribe treatment, or replace qualified medical judgment. Always confirm scoring assumptions, contraindications, bleeding risk, and prevention strategy with an appropriate clinician.