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PLAN Score Calculator (O'Donnell 2012)
x402
PLAN Score Calculator (O'Donnell 2012) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Computes the PLAN score for ischemic stroke outcome prediction using O'Donnell 2012 Arch Intern Med Table 4 clinical variables
Price / call$0.005
Success—
StatusUnknown
How this service works
PLAN score (O'Donnell 2012 Arch Intern Med Table 4): preadmission dependence 1.5, cancer 1.5, CHF 1, atrial fibrillation 1, reduced LOC 5, age 1 point per decade (max 10), significant/total arm weakness 2, leg weakness 2, aphasia or neglect 1. Max 25. Bands <10, 10-15, >15. Not a tPA decision and not iScore. magent does not examine the patient.
Output
Returns the total PLAN score (0–25) and the corresponding risk band: low (<10), medium (10–15), or high (>15), based on summing points for preadmission dependence (1.5), cancer (1.5), CHF (1), atrial fibrillation (1), reduced LOC (5), age in decades capped at 10 points, arm weakness (2), leg weakness (2), and aphasia/neglect (1).
Example use cases
Acute stroke triage risk stratification
“My patient is a 68-year-old who had a stroke — he has preadmission dependence, known CHF, no cancer, no atrial fibrillation, he's alert, has significant arm and leg weakness, and no aphasia or neglect. What is his PLAN score and which risk band does he fall into?”
Clinical dashboard auto-scoring on admission
“For our newly admitted stroke patient, age 80, with preadmission dependence, cancer history, atrial fibrillation, no CHF, reduced level of consciousness, total arm weakness, leg weakness, and aphasia — can you compute the O'Donnell PLAN score?”
Comparing outcomes for two stroke patients
“I have two stroke patients: one is 55 with no preadmission dependence, no cancer, no CHF, no AFib, alert, no arm or leg weakness, no aphasia — and one is 78 with preadmission dependence, cancer, CHF, AFib, reduced LOC, arm weakness, leg weakness, and neglect. Calculate their PLAN scores so I can compare their risk bands.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/planWhen to prefer
Use this endpoint when you need a validated, reproducible PLAN score for ischemic stroke patients per O'Donnell 2012; prefer this over manual computation to avoid arithmetic errors. Note: this is not a tPA eligibility tool and should not be confused with the iScore — it is specifically for functional outcome risk stratification post-stroke.
Side effects
- Missing required query parameters returns an error — all nine fields are required
- Age outside supported range (below 18 or above 120) may be rejected
- Boolean fields passed as non-boolean values will cause a validation error
- Payment failure via x402 protocol results in 402 response and no score returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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