Emergency · LIVE

NUTRIC (Nutrition Risk in the Critically Ill)

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).

LIVE $0.005 USDC GET /api/calc/nutric

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

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

What it computes

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).

When to use

When an agent has caller-supplied age, APACHE II, SOFA, comorbidity count, hospital days to ICU, and IL-6 and needs the published original NUTRIC total and high-risk flag, not a feeding order, and not Rahman 2015 mNUTRIC.

When not to use

• Not a medical device.
• Not a feeding order or nutrition-therapy prescription.
• Heyland 2011 original 6-variable NUTRIC including IL-6 (Table 4 overall). high_risk is true iff score ≥ 6. This is not Rahman 2015 mNUTRIC (IL-6 omitted; do not use the 5–9 cutoff).
• magent does not compute APACHE II or SOFA; the caller supplies those integers. APACHE II 28 scores 2 (the 20–28 row, not the overlapping ≥28 row).

Formula

NUTRIC = age (0–2) + apache_ii (0–3) + sofa (0–2) + comorbidities (0–1) + hospital_days_to_icu (0–1) + il6_pg_ml (0–1); Heyland 2011 Table 4 overall including IL-6; max 10; high_risk if score ≥ 6

Citation

Title

Identifying critically ill patients who benefit the most from nutrition therapy: the development and initial validation of a novel risk assessment tool

Authors

Heyland DK, Dhaliwal R, Jiang X, Day AG

Source

Crit Care. 2011;15(6):R268

DOI

10.1186/cc10546

Worked example

Also searched as

• NUTRIC
• Nutrition Risk in the Critically Ill
• Heyland NUTRIC
• NUTRIC score
• nutrition risk critically ill
• NUTRIC IL-6

Try

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

/api/calc/nutric?age=40&apache_ii=10&sofa=4&comorbidities=0&hospital_days_to_icu=0&il6_pg_ml=100

Full URL: https://api.magentlab.com/api/calc/nutric?age=40&apache_ii=10&sofa=4&comorbidities=0&hospital_days_to_icu=0&il6_pg_ml=100

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/nutric?age=40&apache_ii=10&sofa=4&comorbidities=0&hospital_days_to_icu=0&il6_pg_ml=100"

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/nutric 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": [
    {
      "age": "40",
      "apache_ii": "10",
      "comorbidities": "0",
      "hospital_days_to_icu": "0",
      "il6_pg_ml": "100",
      "sofa": "4"
    },
    {
      "age": "40",
      "apache_ii": "10",
      "comorbidities": "0",
      "hospital_days_to_icu": "0",
      "il6_pg_ml": "100",
      "sofa": "4"
    }
  ]
}

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/nutric",
  "items": [
    {
      "components": [
        {
          "value": 40,
          "factor": "age",
          "points": 0,
          "present": false
        },
        {
          "value": 10,
          "factor": "apache_ii",
          "points": 0,
          "present": false
        },
        {
          "value": 4,
          "factor": "sofa",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "comorbidities",
          "points": 0,
          "present": false
        },
        {
          "value": 0.0,
          "factor": "hospital_days_to_icu",
          "points": 0,
          "present": false
        },
        {
          "value": 100.0,
          "factor": "il6_pg_ml",
          "points": 0,
          "present": false
        }
      ],
      "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": "Heyland DK, Dhaliwal R, Jiang X, Day AG",
        "doi": "10.1186/cc10546",
        "id": "heyland-2011",
        "pmid": "22085762",
        "source": "Crit Care. 2011;15(6):R268",
        "title": "Identifying critically ill patients who benefit the most from nutrition therapy: the development and initial validation of a novel risk assessment tool"
      },
      "formula": "nutric",
      "formula_expression": "NUTRIC = age (0–2) + apache_ii (0–3) + sofa (0–2) + comorbidities (0–1) + hospital_days_to_icu (0–1) + il6_pg_ml (0–1); Heyland 2011 Table 4 overall including IL-6; max 10; high_risk if score ≥ 6",
      "age_years": 40,
      "max_score": 10,
      "score": 0,
      "high_risk": false,
      "apache_ii": 10,
      "comorbidities": 0,
      "hospital_days_to_icu": 0.0,
      "il6_pg_ml": 100.0,
      "sofa": 4
    },
    {
      "components": [
        {
          "value": 40,
          "factor": "age",
          "points": 0,
          "present": false
        },
        {
          "value": 10,
          "factor": "apache_ii",
          "points": 0,
          "present": false
        },
        {
          "value": 4,
          "factor": "sofa",
          "points": 0,
          "present": false
        },
        {
          "value": 0,
          "factor": "comorbidities",
          "points": 0,
          "present": false
        },
        {
          "value": 0.0,
          "factor": "hospital_days_to_icu",
          "points": 0,
          "present": false
        },
        {
          "value": 100.0,
          "factor": "il6_pg_ml",
          "points": 0,
          "present": false
        }
      ],
      "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": "Heyland DK, Dhaliwal R, Jiang X, Day AG",
        "doi": "10.1186/cc10546",
        "id": "heyland-2011",
        "pmid": "22085762",
        "source": "Crit Care. 2011;15(6):R268",
        "title": "Identifying critically ill patients who benefit the most from nutrition therapy: the development and initial validation of a novel risk assessment tool"
      },
      "formula": "nutric",
      "formula_expression": "NUTRIC = age (0–2) + apache_ii (0–3) + sofa (0–2) + comorbidities (0–1) + hospital_days_to_icu (0–1) + il6_pg_ml (0–1); Heyland 2011 Table 4 overall including IL-6; max 10; high_risk if score ≥ 6",
      "age_years": 40,
      "max_score": 10,
      "score": 0,
      "high_risk": false,
      "apache_ii": 10,
      "comorbidities": 0,
      "hospital_days_to_icu": 0.0,
      "il6_pg_ml": 100.0,
      "sofa": 4
    }
  ]
}

Response

Example JSON

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

{
  "components": [
    {
      "value": 40,
      "factor": "age",
      "points": 0,
      "present": false
    },
    {
      "value": 10,
      "factor": "apache_ii",
      "points": 0,
      "present": false
    },
    {
      "value": 4,
      "factor": "sofa",
      "points": 0,
      "present": false
    },
    {
      "value": 0,
      "factor": "comorbidities",
      "points": 0,
      "present": false
    },
    {
      "value": 0.0,
      "factor": "hospital_days_to_icu",
      "points": 0,
      "present": false
    },
    {
      "value": 100.0,
      "factor": "il6_pg_ml",
      "points": 0,
      "present": false
    }
  ],
  "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": "Heyland DK, Dhaliwal R, Jiang X, Day AG",
    "doi": "10.1186/cc10546",
    "id": "heyland-2011",
    "pmid": "22085762",
    "source": "Crit Care. 2011;15(6):R268",
    "title": "Identifying critically ill patients who benefit the most from nutrition therapy: the development and initial validation of a novel risk assessment tool"
  },
  "formula": "nutric",
  "formula_expression": "NUTRIC = age (0–2) + apache_ii (0–3) + sofa (0–2) + comorbidities (0–1) + hospital_days_to_icu (0–1) + il6_pg_ml (0–1); Heyland 2011 Table 4 overall including IL-6; max 10; high_risk if score ≥ 6",
  "age_years": 40,
  "max_score": 10,
  "score": 0,
  "high_risk": false,
  "apache_ii": 10,
  "comorbidities": 0,
  "hospital_days_to_icu": 0.0,
  "il6_pg_ml": 100.0,
  "sofa": 4
}

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).

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.