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TWIST Score Calculator (Barbosa 2013) — Testicular Torsion Risk
x402
TWIST Score Calculator (Barbosa 2013) — Testicular Torsion Risk 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).
Computes the Barbosa 2013 TWIST score (0–7) for testicular torsion risk stratification from five caller-supplied clinical flags, returning a numeric score and low/intermediate/high risk category.
Price / call$0.005
Success—
StatusUnknown
How this service works
Barbosa 2013 TWIST (Testicular Workup for Ischemia and Suspected Torsion). Five caller-assigned flags: testicular swelling (2), hard testicle (2), absent cremasteric reflex (1), nausea or vomiting (1), high-riding testis (1). Max 7. Risk: 0–2 low, 3–4 intermediate, 5–7 high (cutoffs 2 and 5). Not a torsion diagnosis or an ultrasound or operative order. magent does not examine the patient.
Output
Returns the integer TWIST score (0–7), the risk category (low for 0–2, intermediate for 3–4, high for 5–7), and the scoring breakdown per Barbosa 2013. Does not provide a diagnosis, order imaging, or recommend surgery.
Example use cases
ED triage for suspected torsion
“My patient in the ED has testicular swelling, a hard testicle, and nausea but no absent cremasteric reflex and no high-riding testis — what's their TWIST score and which risk category does that put them in?”
Intermediate-risk pathway decision support
“I need the Barbosa TWIST score for a teenager with absent cremasteric reflex and a high-riding testis, no swelling, no hard testicle, no vomiting — is this low, intermediate, or high risk for torsion?”
Documentation of all-negative TWIST exam
“All five TWIST criteria are negative for this patient — testicular swelling false, hard testicle false, absent cremasteric reflex false, nausea false, high-riding testis false. What score does that give and what's the risk level?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/twistWhen to prefer
Use this endpoint when you need a validated, algorithmic TWIST risk stratification from five already-assessed clinical findings (swelling, hardness, cremasteric reflex, nausea, testis position) and want a reproducible 0–7 score with low/intermediate/high cutoffs per Barbosa 2013. Prefer it over generic LLM reasoning for any workflow requiring an auditable, published clinical score.
Side effects
- Missing any of the five required boolean flags returns a validation error
- Non-boolean values for flags cause a schema error
- Score alone does not determine clinical management — misuse risk if treated as a diagnostic result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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