Emergency · LIVE

Braden Scale (Bergstrom)

Braden Scale

Sum six caller-assigned Bergstrom 1987 Braden Scale subscale points and return at_risk when the total is ≤16.

LIVE $0.005 USDC GET /api/calc/braden

Markdown: /docs/braden.md · Canonical: https://magentlab.com/docs/braden

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

What it computes

Sum six caller-assigned Bergstrom 1987 Braden Scale subscale points and return at_risk when the total is ≤16.

When to use

When an agent has already assigned published Bergstrom 1987 subscale points and needs the 6-23 total and that paper's cutoff-16 at-risk flag. magent does not examine the patient or diagnose a pressure sore.

When not to use

• Not a medical device and not a diagnosis or treatment plan.
• Each subscale is a caller-assigned published integer from Bergstrom 1987. magent does not examine the patient.
• Only the 1987 predictive-validity cutoff of 16 is returned (at_risk true iff score ≤16). magent does not emit later mild, moderate, high, or severe bands.

Formula

Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16

Citation

Title

The Braden Scale for Predicting Pressure Sore Risk

Authors

Bergstrom N, Braden BJ, Laguzza A, Holman V

Source

Nurs Res. 1987;36(4):205-210

DOI

10.1097/00006199-198707000-00002

Worked example

Also searched as

• Braden Scale
• Braden score
• Bergstrom Braden
• pressure sore risk
• Braden 1987
• Braden Scale for Predicting Pressure Sore Risk
• pressure ulcer risk

Try

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

/api/calc/braden?sensory_perception=1&moisture=1&activity=1&mobility=1&nutrition=1&friction_shear=1

Full URL: https://api.magentlab.com/api/calc/braden?sensory_perception=1&moisture=1&activity=1&mobility=1&nutrition=1&friction_shear=1

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/braden?sensory_perception=1&moisture=1&activity=1&mobility=1&nutrition=1&friction_shear=1"

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/braden 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": [
    {
      "activity": "1",
      "friction_shear": "1",
      "mobility": "1",
      "moisture": "1",
      "nutrition": "1",
      "sensory_perception": "1"
    },
    {
      "activity": "1",
      "friction_shear": "1",
      "mobility": "1",
      "moisture": "1",
      "nutrition": "1",
      "sensory_perception": "1"
    }
  ]
}

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/braden",
  "items": [
    {
      "components": [
        {
          "value": 1,
          "factor": "sensory_perception",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "moisture",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "activity",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "mobility",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "nutrition",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "friction_shear",
          "points": 1,
          "present": true
        }
      ],
      "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": "Bergstrom N, Braden BJ, Laguzza A, Holman V",
        "doi": "10.1097/00006199-198707000-00002",
        "id": "bergstrom-1987",
        "pmid": "3299278",
        "source": "Nurs Res. 1987;36(4):205-210",
        "title": "The Braden Scale for Predicting Pressure Sore Risk"
      },
      "formula": "braden",
      "formula_expression": "Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16",
      "max_score": 23,
      "score": 6,
      "at_risk": true
    },
    {
      "components": [
        {
          "value": 1,
          "factor": "sensory_perception",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "moisture",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "activity",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "mobility",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "nutrition",
          "points": 1,
          "present": true
        },
        {
          "value": 1,
          "factor": "friction_shear",
          "points": 1,
          "present": true
        }
      ],
      "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": "Bergstrom N, Braden BJ, Laguzza A, Holman V",
        "doi": "10.1097/00006199-198707000-00002",
        "id": "bergstrom-1987",
        "pmid": "3299278",
        "source": "Nurs Res. 1987;36(4):205-210",
        "title": "The Braden Scale for Predicting Pressure Sore Risk"
      },
      "formula": "braden",
      "formula_expression": "Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16",
      "max_score": 23,
      "score": 6,
      "at_risk": true
    }
  ]
}

Response

Example JSON

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

{
  "components": [
    {
      "value": 1,
      "factor": "sensory_perception",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "moisture",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "activity",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "mobility",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "nutrition",
      "points": 1,
      "present": true
    },
    {
      "value": 1,
      "factor": "friction_shear",
      "points": 1,
      "present": true
    }
  ],
  "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": "Bergstrom N, Braden BJ, Laguzza A, Holman V",
    "doi": "10.1097/00006199-198707000-00002",
    "id": "bergstrom-1987",
    "pmid": "3299278",
    "source": "Nurs Res. 1987;36(4):205-210",
    "title": "The Braden Scale for Predicting Pressure Sore Risk"
  },
  "formula": "braden",
  "formula_expression": "Braden = sensory_perception + moisture + activity + mobility + nutrition + friction_shear; Bergstrom 1987 caller-assigned points; 1-4 except friction_shear 1-3; range 6-23; at_risk iff score ≤ 16",
  "max_score": 23,
  "score": 6,
  "at_risk": true
}

Client errors (HTTP 400)

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

Related tools

• NRS-2002 — Sum Kondrup 2003 NRS-2002 impaired nutritional status (0–3), disease severity (0–3), and 1 if age ≥70, and return whether the total is at nutritional risk (score ≥3).
• NUTRIC — Sum Heyland 2011 original 6-variable NUTRIC (Nutrition Risk in the Critically Ill) Table 4 overall points, including IL-6, and return whether the total is high nutrition risk (score ≥6).
• Charlson CCI — Sum the nineteen Charlson 1987 original comorbidity weights and return the published 1-year mortality group.

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.