Powers 2018 Table 6 Class III Harm IVT
Powers 2018 Table 6 Class III Harm IVT. contraindicated iff any of 15 caller flags: CT ICH; recent ischemic stroke, severe head trauma, or intracranial/spinal surgery; posttraumatic infarction; history of ICH; SAH presentation; GI malignancy or bleed 21d; coagulopathy; LMWH 24h; DOAC not cleared; GP IIb/IIIa; infective endocarditis; aortic arch dissection; intra-axial neoplasm. Not Class I eligibility, time window, or a dose. magent does not read CT or assay labs. Not a treatment order.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
363 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/ivt_contraindications
| 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 | $0.007 | 363 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"aortic_arch_dissection": false,
"coagulopathy": false,
"ct_ich": false,
"doac_not_cleared": false,
"gi_malignancy_or_gi_bleed_21d": false,
"gp2b3a_concurrent": false,
"history_ich": false,
"infective_endocarditis": false,
"intra_axial_neoplasm": false,
"intracranial_spinal_surgery_within_3_mo": false,
"ischemic_stroke_within_3_mo": false,
"lmwh_treatment_dose_within_24h": false,
"posttraumatic_infarction_in_hospital": false,
"sah_presentation": false,
"severe_head_trauma_within_3_mo": false
},
{
"aortic_arch_dissection": false,
"coagulopathy": false,
"ct_ich": false,
"doac_not_cleared": false,
"gi_malignancy_or_gi_bleed_21d": false,
"gp2b3a_concurrent": false,
"history_ich": false,
"infective_endocarditis": false,
"intra_axial_neoplasm": false,
"intracranial_spinal_surgery_within_3_mo": false,
"ischemic_stroke_within_3_mo": false,
"lmwh_treatment_dose_within_24h": false,
"posttraumatic_infarction_in_hospital": false,
"sah_presentation": false,
"severe_head_trauma_within_3_mo": false
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"aortic_arch_dissection": {
"description": "Known or suspected aortic arch dissection as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
},
"coagulopathy": {
"description": "Caller-assigned coagulopathy as in Table 6 (platelets <100000/mm3 or INR >1.7 or aPTT >40 s or PT >15 s). One flag. true or false. magent does not assay labs.",
"type": "boolean"
},
"ct_ich": {
"description": "CT reveals acute intracranial hemorrhage as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read CT.",
"type": "boolean"
},
"doac_not_cleared": {
"description": "Taking a direct thrombin or factor Xa inhibitor AND labs not documented normal AND last dose not >48 h with normal renal function, as assigned by the caller from that Table 6 row. true or false. magent does not assay labs.",
"type": "boolean"
},
"gi_malignancy_or_gi_bleed_21d": {
"description": "Structural GI malignancy or GI bleed within 21 days as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
},
"gp2b3a_concurrent": {
"description": "Concurrent GP IIb/IIIa inhibitor as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read a medication list.",
"type": "boolean"
},
"history_ich": {
"description": "History of intracranial hemorrhage as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read prior imaging.",
"type": "boolean"
},
"infective_endocarditis": {
"description": "Symptoms consistent with infective endocarditis as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
},
"intra_axial_neoplasm": {
"description": "Intra-axial intracranial neoplasm as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read imaging.",
"type": "boolean"
},
"intracranial_spinal_surgery_within_3_mo": {
"description": "Intracranial or spinal surgery within 3 months as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read an operative note.",
"type": "boolean"
},
"ischemic_stroke_within_3_mo": {
"description": "Prior ischemic stroke within 3 months as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not date prior strokes.",
"type": "boolean"
},
"lmwh_treatment_dose_within_24h": {
"description": "Treatment-dose LMWH within the previous 24 h as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not read a medication list.",
"type": "boolean"
},
"posttraumatic_infarction_in_hospital": {
"description": "Posttraumatic infarction in the acute in-hospital phase as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
},
"sah_presentation": {
"description": "Presentation most consistent with subarachnoid hemorrhage as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
},
"severe_head_trauma_within_3_mo": {
"description": "Recent severe head trauma within 3 months as assigned by the caller (Powers 2018 Table 6 Class III: Harm). true or false. magent does not examine the patient.",
"type": "boolean"
}
},
"required": [
"ct_ich",
"ischemic_stroke_within_3_mo",
"severe_head_trauma_within_3_mo",
"posttraumatic_infarction_in_hospital",
"intracranial_spinal_surgery_within_3_mo",
"history_ich",
"sah_presentation",
"gi_malignancy_or_gi_bleed_21d",
"coagulopathy",
"lmwh_treatment_dose_within_24h",
"doac_not_cleared",
"gp2b3a_concurrent",
"infective_endocarditis",
"aortic_arch_dissection",
"intra_axial_neoplasm"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "st