Emergency · LIVE

Pediatric BIG score

Compute the Borgman 2011 pediatric trauma BIG score from caller-assigned admission base deficit in mmol/L, INR, and GCS. Returns the published arithmetic only.

LIVE $0.005 USDC GET /api/calc/pediatric_big

Markdown: /docs/pediatric-big.md · Canonical: https://magentlab.com/docs/pediatric-big

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Compute the Borgman 2011 pediatric trauma BIG score from caller-assigned admission base deficit in mmol/L, INR, and GCS. Returns the published arithmetic only.

When to use

When an agent already has admission base deficit, INR, and a 3-15 GCS and needs the Borgman 2011 BIG score, not PTS, not ISS, and not a later mortality cutoff.

When not to use

• Not a medical device and not a trauma-bay disposition order.
• magent does not assay blood gas or INR or compute GCS. base_deficit, inr, and gcs are caller-assigned. Base deficit is used as Borgman 2011 prints it (mmol/L); magent does not flip a signed base-excess value.
• Borgman 2011 publishes the equation BIG = admission base deficit + (2.5 × INR) + (15 − GCS). It does not print a ≥12.7 or ≥16 mortality cut. magent returns the numeric score only.

Formula

BIG = base_deficit + (2.5 * inr) + (15 - gcs); Borgman 2011; admission base deficit mmol/L as published (not a signed base-excess flip); INR unitless; GCS integer 3-15; magent does not assay blood gas or INR or compute GCS; no later 12.7 or 16 mortality cut

Citation

Title

Pediatric trauma BIG score: predicting mortality in children after military and civilian trauma

Authors

Borgman MA, Maegele M, Wade CE, Blackbourne LH, Spinella PC

Source

Pediatrics. 2011;127(4):e892-e897

DOI

10.1542/peds.2010-2439

Worked example

Also searched as

• BIG score
• pediatric BIG score
• pediatric trauma BIG
• Borgman BIG score
• base deficit INR GCS
• pediatric trauma mortality BIG
• BD INR GCS score

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/pediatric_big?base_deficit=0&inr=1.0&gcs=15

Full URL: https://api.magentlab.com/api/calc/pediatric_big?base_deficit=0&inr=1.0&gcs=15

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/pediatric_big?base_deficit=0&inr=1.0&gcs=15"

Parameters

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/pediatric_big Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

• 1 to 25 items. Each item uses the same keys as the GET query parameters.
• POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
• The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
• HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
• Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
• x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "base_deficit": "0",
      "gcs": "15",
      "inr": "1.0"
    },
    {
      "base_deficit": "0",
      "gcs": "15",
      "inr": "1.0"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/pediatric_big",
  "items": [
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Borgman MA, Maegele M, Wade CE, Blackbourne LH, Spinella PC",
        "doi": "10.1542/peds.2010-2439",
        "id": "borgman-2011",
        "pmid": "21422095",
        "source": "Pediatrics. 2011;127(4):e892-e897",
        "title": "Pediatric trauma BIG score: predicting mortality in children after military and civilian trauma"
      },
      "formula": "pediatric_big",
      "formula_expression": "BIG = base_deficit + (2.5 * inr) + (15 - gcs); Borgman 2011; admission base deficit mmol/L as published (not a signed base-excess flip); INR unitless; GCS integer 3-15; magent does not assay blood gas or INR or compute GCS; no later 12.7 or 16 mortality cut",
      "score": 2.5,
      "inr": 1.0,
      "gcs": 15,
      "base_deficit": 0.0
    },
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Borgman MA, Maegele M, Wade CE, Blackbourne LH, Spinella PC",
        "doi": "10.1542/peds.2010-2439",
        "id": "borgman-2011",
        "pmid": "21422095",
        "source": "Pediatrics. 2011;127(4):e892-e897",
        "title": "Pediatric trauma BIG score: predicting mortality in children after military and civilian trauma"
      },
      "formula": "pediatric_big",
      "formula_expression": "BIG = base_deficit + (2.5 * inr) + (15 - gcs); Borgman 2011; admission base deficit mmol/L as published (not a signed base-excess flip); INR unitless; GCS integer 3-15; magent does not assay blood gas or INR or compute GCS; no later 12.7 or 16 mortality cut",
      "score": 2.5,
      "inr": 1.0,
      "gcs": 15,
      "base_deficit": 0.0
    }
  ]
}

Response

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Borgman MA, Maegele M, Wade CE, Blackbourne LH, Spinella PC",
    "doi": "10.1542/peds.2010-2439",
    "id": "borgman-2011",
    "pmid": "21422095",
    "source": "Pediatrics. 2011;127(4):e892-e897",
    "title": "Pediatric trauma BIG score: predicting mortality in children after military and civilian trauma"
  },
  "formula": "pediatric_big",
  "formula_expression": "BIG = base_deficit + (2.5 * inr) + (15 - gcs); Borgman 2011; admission base deficit mmol/L as published (not a signed base-excess flip); INR unitless; GCS integer 3-15; magent does not assay blood gas or INR or compute GCS; no later 12.7 or 16 mortality cut",
  "score": 2.5,
  "inr": 1.0,
  "gcs": 15,
  "base_deficit": 0.0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

Related tools

• PTS — Compute the Tepas 1987 Pediatric Trauma Score from caller-assigned weight, airway, systolic BP, CNS, skeletal, and wound grades.
• ISS — Compute the Baker 1974 Injury Severity Score as the sum of squares of the three highest caller-assigned AIS body-region grades, or 75 if any region is AIS 6.
• Glasgow Coma Scale — Compute the Glasgow Coma Scale as the sum of caller-assigned eye, verbal, and motor integers. The 1974 or 1976 edition is required.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

• HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
• exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
• HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
• Execution is timeout-bounded and concurrency-capped.
• Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.