Haematology
RIETE Score (Venous Thromboembolism)
30-day fatal bleeding risk during VTE anticoagulation.
RIETE Score (Venous Thromboembolism) calculator
Result
0points
Low risk — ~0.1% fatal bleed
How to use it
- 1
Recent bleeding: 2 points. Most heavily weighted — major bleed within 30 days.
- 2
5 other risk factors: 1 pt each. Renal impairment, anaemia, malignancy, PE diagnosis, age ≥75.
- 3
Bleeding risk vs. VTE recurrence. RIETE helps weigh competing risks for duration of anticoagulation decisions.
When to use it
- Anticoagulation duration decision
- RIETE score guides short (3 months) vs. extended anticoagulation after VTE.
- Extended OAC for unprovoked VTE
- RIETE low risk + unprovoked DVT/PE = extended anticoagulation strongly favoured.
- Malignancy-associated VTE
- RIETE high + cancer: LMWH vs. DOAC decision requires oncology input.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Haematology
- Inputs
- 6
- Type
- Points score
