Padua Score Calculator

Introduction

Hospitalized medical patients face a substantial risk of venous thromboembolism, a potentially preventable cause of morbidity and mortality. The Padua Score Calculator is a validated tool that quantifies this risk using 11 clinical variables. Clinicians use it to decide whether pharmacological thromboprophylaxis is warranted. This calculator automates the scoring, delivering a total score (0–17), risk category (low, high, or very high), and specific recommendations. It is designed for physicians, pharmacists, and nurses involved in inpatient care. All calculations run in your browser, ensuring patient privacy. Use it at the bedside or for documentation to support evidence-based VTE prevention.

How to Use the Padua Score Calculator

1. Review each of the 11 risk factors listed under Risk Factors.

2. Toggle Yes or No for each factor based on the patient’s clinical status.

3. Observe the total score update automatically as you make selections.

4. Click Calculate if you want to refresh the results manually.

5. Check the Total Score out of 17 and the Risk Category.

6. Read the VTE Risk percentage and the Recommendation for prophylaxis.

7. Use the quick example buttons to test low, moderate, high, and cancer patient profiles.

8. Copy, share, or embed the results using the buttons below.

How the Padua Score Calculator Formula Works

The Padua Score is an additive point system. Each of the 11 risk factors contributes a fixed number of points when present.

Formula:
Padua Score = sum of points for all present risk factors

Point assignments:

• Active cancer: 3 points

• Previous VTE (excluding superficial vein thrombosis): 3 points

• Reduced mobility (bed rest with bathroom privileges for ≥3 days): 3 points

• Known thrombophilia: 3 points

• Recent trauma and/or surgery (within 1 month): 2 points

• Age ≥70 years: 1 point

• Heart and/or respiratory failure: 1 point

• Acute MI and/or ischemic stroke: 1 point

• Acute infection and/or rheumatologic disorder: 1 point

• Obesity (BMI ≥30 kg/m²): 1 point

• Ongoing hormonal treatment: 1 point

Score range: 0–17 points.

Risk categories:

• 0–3: Low risk (<0.3% 90-day VTE risk) — no specific pharmacological prophylaxis; early ambulation.

• 4–6: High risk (~11% 90-day VTE risk) — thromboprophylaxis recommended (LMWH or DOAC) in patients without contraindications.

• ≥7: Very high risk (>11% 90-day VTE risk) — aggressive prophylaxis and consider extended duration.

The calculator does not validate inputs beyond the Yes/No toggles. Edge cases include all No (score 0) and all Yes (score 17).

Worked Example

Consider a 72-year-old woman admitted with acute infection and reduced mobility. She has active cancer and is over 70. She has no previous VTE, thrombophilia, recent surgery, heart failure, MI, stroke, obesity, or hormonal treatment.

• Active cancer: Yes → 3 points

• Reduced mobility: Yes → 3 points

• Age ≥70: Yes → 1 point

• Acute infection: Yes → 1 point

Total Score: 3 + 3 + 1 + 1 = 8 / 17

Risk Category: Very High Risk (≥7)

VTE Risk: >11% at 90 days

Recommendation: Very high risk of VTE. Aggressive thromboprophylaxis is strongly recommended. Consider extended prophylaxis post-discharge (6–39 days). Close monitoring for VTE and bleeding complications is essential.

This patient should receive pharmacological prophylaxis unless contraindicated.