# RIETE major bleeding score RIETE Status: LIVE Price: $0.005 USDC `GET /api/calc/riete` HTML: https://magentlab.com/docs/riete Markdown: https://magentlab.com/docs/riete.md 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 [Predictive variables for major bleeding events in patients presenting with documented acute venous thromboembolism. Findings from the RIETE Registry](https://doi.org/10.1160/TH08-03-0193) Ruiz-Giménez N, Suárez C, González R, Nieto JA, Todolí JA, Samperiz AL, Monreal M; RIETE Investigators Thromb Haemost. 2008;100(1):26-31 DOI: [10.1160/TH08-03-0193](https://doi.org/10.1160/TH08-03-0193) ## Worked example ### All flags false Given: `age_gt_75=false, anemia=false, cancer=false, clinically_overt_pe=false, creatinine_gt_1_2=false, recent_major_bleeding=false` 1. All six caller-assigned flags false → 0 2. Score = 0 (max 8); riete_band = low ### Recent major bleeding, creatinine >1.2 mg/dL, and anemia Given: `age_gt_75=false, anemia=true, cancer=false, clinically_overt_pe=false, creatinine_gt_1_2=true, recent_major_bleeding=true` 1. recent_major_bleeding → 2.0; creatinine_gt_1_2 → 1.5; anemia → 1.5; remaining flags 0 2. 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 ## Parameters - `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. Method: `POST /api/calc/riete` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: 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: ```json { "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" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/riete Example 200: ```json { "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 fields - `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 Frozen fixture. Not a live lookup. ```json { "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" } ``` ## Errors - HTTP 400 `invalid_flag`: boolean clinical flags must be true or false Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [Wells PE](https://magentlab.com/docs/wells-pe) — Compute the Wells pulmonary-embolism probability score and return three-tier and two-tier bands. - [Hestia criteria](https://magentlab.com/docs/hestia) — Apply the Zondag 2011 Hestia exclusion checklist and return whether outpatient treatment of acute PE is eligible from 11 caller-assigned items. - [Padua score](https://magentlab.com/docs/padua) — 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. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/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.