RIETE major bleeding score

RIETE

Sum the Ruiz-Giménez 2008 RIETE adverse factors for 3-month major bleeding after documented acute VTE and return low (0), intermediate (1–4), or high (>4).

LIVE $0.005 USDC GET /api/calc/riete

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

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

What it computes

Sum the Ruiz-Giménez 2008 RIETE adverse factors for 3-month major bleeding after documented acute VTE and return low (0), intermediate (1–4), or high (>4).

When to use

When an agent needs the published RIETE 2008 point total and class and must not invent a VTE diagnosis or a bleed-treatment or anticoagulation protocol.

When not to use

Not a medical device and not a VTE diagnosis or bleed-treatment protocol. magent does not examine the patient.
Bands are published 3-month major-bleed rates from Ruiz-Giménez 2008 (derivation 0.3%/2.6%/7.3%; validation 0.1%/2.8%/6.2%), not an anticoagulation protocol.
magent does not assay hemoglobin or compute creatinine from a lab. All six inputs are caller-assigned flags. Anemia in the paper is Hb <13 g/dL in men / <12 g/dL in women.

Formula

RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4

Citation

Title: Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry
Authors: Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators
Source: Thromb Haemost. 2008;100(1):26-31
DOI: 10.1160/TH08-03-0193

Worked example

All flags false

Given: age_gt_75=falseanemia=falsecancer=falseclinically_overt_pe=falsecreatinine_gt_1_2=falserecent_major_bleeding=false

All six caller-assigned flags false → 0
Score = 0 (max 8); riete_band = low

Recent major bleeding, creatinine >1.2 mg/dL, and anemia

Given: age_gt_75=falseanemia=truecancer=falseclinically_overt_pe=falsecreatinine_gt_1_2=truerecent_major_bleeding=true

recent_major_bleeding → 2.0; creatinine_gt_1_2 → 1.5; anemia → 1.5; remaining flags 0
Score = 5.0 (max 8); riete_band = high (>4)

Also searched as

RIETE score
RIETE bleeding score
Ruiz-Giménez RIETE
VTE major bleeding score
RIETE Registry bleeding
acute VTE bleed risk

Try

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

/api/calc/riete?recent_major_bleeding=false&creatinine_gt_1_2=false&anemia=false&cancer=false&clinically_overt_pe=false&age_gt_75=false

Full URL: https://api.magentlab.com/api/calc/riete?recent_major_bleeding=false&creatinine_gt_1_2=false&anemia=false&cancer=false&clinically_overt_pe=false&age_gt_75=false

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/riete?recent_major_bleeding=false&creatinine_gt_1_2=false&anemia=false&cancer=false&clinically_overt_pe=false&age_gt_75=false"

Parameters

Name	Type	Required	Description
`recent_major_bleeding`	boolean	required	Recent major bleeding as assigned by the caller (Ruiz-Giménez 2008). true scores 2.0. magent does not grade bleeding.
`creatinine_gt_1_2`	boolean	required	Creatinine >1.2 mg/dL as assigned by the caller (Ruiz-Giménez 2008). true scores 1.5. magent does not compute creatinine from a lab.
`anemia`	boolean	required	Anemia as assigned by the caller (Ruiz-Giménez 2008: hemoglobin <13 g/dL in men or <12 g/dL in women). true scores 1.5. magent does not assay hemoglobin.
`cancer`	boolean	required	Cancer as assigned by the caller (Ruiz-Giménez 2008). true scores 1.0. magent does not diagnose cancer.
`clinically_overt_pe`	boolean	required	Clinically overt pulmonary embolism as assigned by the caller (Ruiz-Giménez 2008). true scores 1.0. magent does not diagnose PE.
`age_gt_75`	boolean	required	Age >75 years as assigned by the caller (Ruiz-Giménez 2008). true scores 1.0. magent does not assign age.

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/riete 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_gt_75": "false",
      "anemia": "false",
      "cancer": "false",
      "clinically_overt_pe": "false",
      "creatinine_gt_1_2": "false",
      "recent_major_bleeding": "false"
    },
    {
      "age_gt_75": "false",
      "anemia": "false",
      "cancer": "false",
      "clinically_overt_pe": "false",
      "creatinine_gt_1_2": "false",
      "recent_major_bleeding": "false"
    }
  ]
}

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/riete",
  "items": [
    {
      "components": [
        {
          "factor": "recent_major_bleeding",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "creatinine_gt_1_2",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "anemia",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "cancer",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "clinically_overt_pe",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "age_gt_75",
          "points": 0.0,
          "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": "Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators",
        "doi": "10.1160/TH08-03-0193",
        "id": "ruiz-gimenez-2008",
        "pmid": "18612548",
        "source": "Thromb Haemost. 2008;100(1):26-31",
        "title": "Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry"
      },
      "formula": "riete",
      "formula_expression": "RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4",
      "max_score": 8,
      "score": 0.0,
      "riete_band": "low"
    },
    {
      "components": [
        {
          "factor": "recent_major_bleeding",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "creatinine_gt_1_2",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "anemia",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "cancer",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "clinically_overt_pe",
          "points": 0.0,
          "present": false
        },
        {
          "factor": "age_gt_75",
          "points": 0.0,
          "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": "Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators",
        "doi": "10.1160/TH08-03-0193",
        "id": "ruiz-gimenez-2008",
        "pmid": "18612548",
        "source": "Thromb Haemost. 2008;100(1):26-31",
        "title": "Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry"
      },
      "formula": "riete",
      "formula_expression": "RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4",
      "max_score": 8,
      "score": 0.0,
      "riete_band": "low"
    }
  ]
}

Response

Field	Type	Description
`formula`	string	riete
`formula_expression`	string	Exact expression used
`score`	number	RIETE points 0-8 (0.5 steps; not rounded)
`max_score`	integer	Always 8
`riete_band`	string	low when score is 0, intermediate when 1-4 inclusive, high when >4 (Ruiz-Giménez 2008 derivation 3-month major bleed 0.3%/2.6%/7.3%). Not a VTE diagnosis or bleed-treatment protocol.
`components`	array	Per-factor points
`citation`	object	Ruiz-Giménez 2008 Thromb Haemost citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "factor": "recent_major_bleeding",
      "points": 0.0,
      "present": false
    },
    {
      "factor": "creatinine_gt_1_2",
      "points": 0.0,
      "present": false
    },
    {
      "factor": "anemia",
      "points": 0.0,
      "present": false
    },
    {
      "factor": "cancer",
      "points": 0.0,
      "present": false
    },
    {
      "factor": "clinically_overt_pe",
      "points": 0.0,
      "present": false
    },
    {
      "factor": "age_gt_75",
      "points": 0.0,
      "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": "Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators",
    "doi": "10.1160/TH08-03-0193",
    "id": "ruiz-gimenez-2008",
    "pmid": "18612548",
    "source": "Thromb Haemost. 2008;100(1):26-31",
    "title": "Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry"
  },
  "formula": "riete",
  "formula_expression": "RIETE = recent_major_bleeding 2.0 + creatinine_gt_1_2 1.5 + anemia 1.5 + cancer 1.0 + clinically_overt_pe 1.0 + age_gt_75 1.0; Ruiz-Giménez 2008; max 8; low 0, intermediate 1-4, high >4",
  "max_score": 8,
  "score": 0.0,
  "riete_band": "low"
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_flag`	boolean clinical flags must be true or false Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

Wells PE — Compute the Wells pulmonary-embolism probability score and return three-tier and two-tier bands.
Hestia criteria — Apply the Zondag 2011 Hestia exclusion checklist and return whether outpatient treatment of acute PE is eligible from 11 caller-assigned items.
Padua score — Compute the Barbar 2010 Padua Prediction Score for VTE risk in hospitalized medical patients from age and ten caller-assigned findings.

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.
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.