Chopra 2017 Michigan Risk Score for PICC-associated thrombosis
Chopra 2017 Michigan Risk Score for PICC-associated thrombosis: another CVC at PICC placement 1, WBC >12 x10^9/L 1 (12.0 does not score), active cancer 2, PICC lumens single 0 / double 2 / triple 3 (triple includes quad), VTE history never 0 / remote 2 / within 30 days 3 (one field; do not add remote and recent). Max 10. Classes I=0 (observed 0.9%), II=1-2 (1.6%), III=3-4 (2.7%), IV=>4 (4.7% Table 4). Not a PICC order. magent does not count lumens.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
285 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/michigan_picc
| 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 | $0.007 | 285 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"active_cancer": false,
"other_cvc": false,
"picc_lumens": "single",
"vte_history": "never",
"wbc_k_ul": 8,
"wbc_ul": 8000
},
{
"active_cancer": false,
"other_cvc": false,
"picc_lumens": "single",
"vte_history": "never",
"wbc_k_ul": 8,
"wbc_ul": 8000
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"active_cancer": {
"description": "Active cancer as assigned by the caller (Chopra 2017). true or false. true scores 2.",
"type": "boolean"
},
"other_cvc": {
"description": "Another CVC present when the index PICC is placed, as assigned by the caller (Chopra 2017). true or false. true scores 1. magent does not count catheters.",
"type": "boolean"
},
"picc_lumens": {
"description": "PICC lumen count as assigned by the caller (Chopra 2017). single scores 0; double scores 2; triple scores 3. triple includes quad as published. magent does not count lumens.",
"enum": [
"single",
"double",
"triple"
],
"type": "string"
},
"vte_history": {
"description": "One 3-tier VTE history field (Chopra 2017). never scores 0; remote (prior VTE beyond 30 days) scores 2; within_30_days scores 3. Do not add remote and recent.",
"enum": [
"never",
"remote",
"within_30_days"
],
"type": "string"
},
"wbc_k_ul": {
"description": "WBC in 10^3/\u00b5L (same as 10^9/L) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 0.01-500. >12 scores 1 (12.0 does not).",
"type": "number"
},
"wbc_ul": {
"description": "WBC in cells/\u00b5L (same as cells/mm^3) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 10-500000. >12000 scores 1 (12000 does not; 12001 does).",
"type": "number"
}
},
"required": [
"other_cvc",
"active_cancer",
"picc_lumens",
"vte_history"
],
"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"
}