NEXUS Chest CT (Rodriguez 2015)
NEXUS Chest CT (Rodriguez 2015). Chest CT-Major is negative only when abnormal CXR, distracting injury, chest-wall, sternal, thoracic-spine, and scapular tenderness are all absent. Chest CT-All is negative only when those six and rapid deceleration mechanism are absent. Presence of a criterion does not mandate CT. Not a diagnosis, not the NEXUS Chest CXR instrument, and not Hoffman 2000 NEXUS C-spine. Enrolled blunt trauma age >14. magent does not examine the patient or read a radiograph.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
293 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/nexus_chest_ct
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 293 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"abnormal_cxr": false,
"chest_wall_tenderness": false,
"distracting_injury": false,
"rapid_deceleration_mechanism": false,
"scapular_tenderness": false,
"sternal_tenderness": false,
"thoracic_spine_tenderness": false
},
{
"abnormal_cxr": false,
"chest_wall_tenderness": false,
"distracting_injury": false,
"rapid_deceleration_mechanism": false,
"scapular_tenderness": false,
"sternal_tenderness": false,
"thoracic_spine_tenderness": false
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"abnormal_cxr": {
"description": "Abnormal chest radiograph as assigned by the caller (paper: any thoracic injury including clavicle fracture, or a widened mediastinum). true means the finding is present and Chest CT-Major is not negative. true or false. magent does not read a radiograph.",
"type": "boolean"
},
"chest_wall_tenderness": {
"description": "Chest-wall tenderness to palpation as assigned by the caller. true means tenderness is present and Chest CT-Major is not negative. true or false. magent does not palpate the chest.",
"type": "boolean"
},
"distracting_injury": {
"description": "Painful, distracting injury as assigned by the caller. true means a distracting injury is present and Chest CT-Major is not negative. true or false. magent does not examine the patient.",
"type": "boolean"
},
"rapid_deceleration_mechanism": {
"description": "Rapid deceleration mechanism as assigned by the caller (paper: fall from >20 feet or motor vehicle crash >40 mph with sudden deceleration). true means the finding is present and Chest CT-All is not negative. true or false. magent does not classify mechanism.",
"type": "boolean"
},
"scapular_tenderness": {
"description": "Scapular tenderness to palpation as assigned by the caller. true means tenderness is present and Chest CT-Major is not negative. true or false. magent does not palpate the scapula.",
"type": "boolean"
},
"sternal_tenderness": {
"description": "Sternal tenderness to palpation as assigned by the caller. true means tenderness is present and Chest CT-Major is not negative. true or false. magent does not palpate the sternum.",
"type": "boolean"
},
"thoracic_spine_tenderness": {
"description": "Thoracic-spine tenderness to palpation as assigned by the caller. true means tenderness is present and Chest CT-Major is not negative. true or false. magent does not palpate the thoracic spine.",
"type": "boolean"
}
},
"required": [
"abnormal_cxr",
"distracting_injury",
"chest_wall_tenderness",
"sternal_tenderness",
"thoracic_spine_tenderness",
"scapular_tenderness",
"rapid_deceleration_mechanism"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}