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IMPROVE-DD VTE Risk Score Calculator
x402
IMPROVE-DD VTE Risk Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Calculates the Gibson 2017 IMPROVE-DD venous thromboembolism (VTE) risk score for hospitalized medical patients using 7 Spyropoulos 2011 IMPROVE factors plus D-dimer elevation
Price / call$0.005
Success—
StatusUnknown
How this service works
Gibson 2017 IMPROVEDD VTE score: Spyropoulos 2011 7-factor IMPROVE items (previous VTE 3, known thrombophilia 2, lower-limb paralysis 2, current cancer 2, immobilized >=7 days 1, ICU/CCU 1, age >60 1) plus 2 if caller-assigned D-dimer >=2x ULN. Max 14. low 0-1 vs high >=2 (heightened VTE through 77 days when >=2). Not a VTE diagnosis or prophylaxis order. Not the 4-factor admission model. Not Padua or Caprini. magent does not assay D-dimer.
Output
Returns the IMPROVE-DD total score (integer, 0–14) and the risk category: low (score 0–1) or high (score ≥2), indicating heightened 77-day VTE risk when high. Does not include a clinical recommendation, prophylaxis order, or VTE diagnosis.
Example use cases
ICU patient VTE risk stratification
“Run the IMPROVE-DD VTE score for a 72-year-old patient currently in the ICU — they have a history of prior VTE, no known thrombophilia, no lower-limb paralysis, no active cancer, have been immobilized for over 7 days, and their D-dimer is more than twice the upper limit of normal.”
Oncology inpatient clot risk assessment
“What's the IMPROVE-DD score for a 58-year-old with active cancer who was just admitted — no prior VTE, no thrombophilia, no limb paralysis, not in ICU, immobilized fewer than 7 days, and D-dimer is below 2× ULN?”
Elderly patient with thrombophilia triage
“Score this 65-year-old patient on the IMPROVE-DD: known thrombophilia, no prior VTE, no cancer, no lower-limb paralysis, not in ICU, not immobilized ≥7 days, and D-dimer is at least twice the upper limit of normal.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/improveddWhen to prefer
Use this endpoint when you need the Gibson 2017 IMPROVE-DD 8-factor model specifically (the 7 original Spyropoulos 2011 IMPROVE items plus D-dimer). Prefer it over the original 4-factor IMPROVE admission model when D-dimer data is available and a 77-day risk window is relevant. Do not use if you need the Padua, Caprini, or Khorana models — those are distinct risk stratification tools. This endpoint does not diagnose VTE, order prophylaxis, or assay D-dimer; it only scores a set of caller-supplied binary flags.
Side effects
- Missing required query parameters (age, any of the 7 boolean flags, or d_dimer_ge_2x_uln) returns a 400 error
- Age outside the accepted range (18–120) returns a validation error
- Non-boolean values for boolean fields cause a schema validation failure
- Payment failure (insufficient USDC balance or x402 protocol error) prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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