# Padua score Padua score Status: LIVE Price: $0.005 USDC `GET /api/calc/padua` HTML: https://magentlab.com/docs/padua Markdown: https://magentlab.com/docs/padua.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Compute the Barbar 2010 Padua Prediction Score for VTE risk in hospitalized medical patients from age and ten caller-assigned findings. ## When to use When an agent needs the published Padua Prediction Score (not Caprini, IMPROVE, or Khorana) for a hospitalized medical patient as in the paper. ## When not to use - Not a diagnosis of VTE. magent does not diagnose venous thromboembolism. - Not Caprini, IMPROVE, or Khorana. This tool is the Barbar 2010 Padua Prediction Score only. - Only for hospitalized medical patients as published. - Obesity is a caller-applied BMI ≥30 flag; magent does not take height or weight. - Age 70 is included (scores 1). High risk is score ≥4; scores 0–3 are low risk. ## Formula ``` Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high ``` ## Citation [A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score](https://doi.org/10.1111/j.1538-7836.2010.04044.x) Barbar S, Noventa F, Rossetto V, et al. J Thromb Haemost. 2010;8(11):2450-2457 DOI: [10.1111/j.1538-7836.2010.04044.x](https://doi.org/10.1111/j.1538-7836.2010.04044.x) ## Worked example ### All items absent Given: `active_cancer=false, acute_infection_or_rheumatologic_disorder=false, acute_mi_or_ischemic_stroke=false, age=50, heart_or_respiratory_failure=false, obesity=false, ongoing_hormonal_treatment=false, previous_vte=false, recent_trauma_or_surgery=false, reduced_mobility=false, thrombophilic_condition=false` 1. Age 50 is not ≥70 → 0; all ten flags false → 0 2. Score = 0 (max 20); padua_risk low ### Active cancer plus age 70 is high Given: `active_cancer=true, acute_infection_or_rheumatologic_disorder=false, acute_mi_or_ischemic_stroke=false, age=70, heart_or_respiratory_failure=false, obesity=false, ongoing_hormonal_treatment=false, previous_vte=false, recent_trauma_or_surgery=false, reduced_mobility=false, thrombophilic_condition=false` 1. active_cancer → 3; age 70 ≥ 70 → 1 2. Score = 4 (max 20); padua_risk high ## Also searched as - Padua Prediction Score - Padua VTE score - Barbar Padua score - Padua risk assessment model - hospital medical VTE score - Padua thromboprophylaxis ## Parameters - `age` (integer, required): Age in years (18-120). Scores 1 when age ≥70; 69 does not score. - `active_cancer` (boolean, required): Active cancer as assigned by the caller (local or distant metastases and/or chemotherapy or radiotherapy in the previous 6 months). true or false. 3 points if true. - `previous_vte` (boolean, required): Previous VTE as assigned by the caller (exclude superficial vein thrombosis). true or false. 3 points if true. - `reduced_mobility` (boolean, required): Reduced mobility as assigned by the caller (bedrest with bathroom privileges ≥3 days). true or false. 3 points if true. - `thrombophilic_condition` (boolean, required): Known thrombophilic condition as assigned by the caller. true or false. 3 points if true. - `recent_trauma_or_surgery` (boolean, required): Recent trauma and/or surgery as assigned by the caller (≤1 month). true or false. 2 points if true. - `heart_or_respiratory_failure` (boolean, required): Heart and/or respiratory failure. true or false. 1 point if true. - `acute_mi_or_ischemic_stroke` (boolean, required): Acute myocardial infarction or ischemic stroke. true or false. 1 point if true. - `acute_infection_or_rheumatologic_disorder` (boolean, required): Acute infection and/or rheumatologic disorder. true or false. 1 point if true. - `obesity` (boolean, required): Obesity as assigned by the caller (BMI ≥30). true or false. magent does not take height or weight. 1 point if true. - `ongoing_hormonal_treatment` (boolean, required): Ongoing hormonal treatment. true or false. 1 point if true. ## Bulk (POST) POST the same path with a JSON items array. Price is n times the GET unit. Invalid items return HTTP 400 before settlement. Method: `POST /api/calc/padua` Max items: 25 Price: unit_amount * n (unit 5000 atomic) Status: PREVIEW - 1 to 25 items. Each item uses the same keys as the GET query parameters. - 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": [ { "active_cancer": "false", "acute_infection_or_rheumatologic_disorder": "false", "acute_mi_or_ischemic_stroke": "false", "age": "50", "heart_or_respiratory_failure": "false", "obesity": "false", "ongoing_hormonal_treatment": "false", "previous_vte": "false", "recent_trauma_or_surgery": "false", "reduced_mobility": "false", "thrombophilic_condition": "false" }, { "active_cancer": "false", "acute_infection_or_rheumatologic_disorder": "false", "acute_mi_or_ischemic_stroke": "false", "age": "50", "heart_or_respiratory_failure": "false", "obesity": "false", "ongoing_hormonal_treatment": "false", "previous_vte": "false", "recent_trauma_or_surgery": "false", "reduced_mobility": "false", "thrombophilic_condition": "false" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/padua Example 200: ```json { "count": 2, "path": "/api/calc/padua", "items": [ { "components": [ { "factor": "active_cancer", "points": 0, "present": false }, { "factor": "previous_vte", "points": 0, "present": false }, { "factor": "reduced_mobility", "points": 0, "present": false }, { "factor": "thrombophilic_condition", "points": 0, "present": false }, { "factor": "recent_trauma_or_surgery", "points": 0, "present": false }, { "value": 50, "factor": "age_ge_70", "points": 0, "present": false }, { "factor": "heart_or_respiratory_failure", "points": 0, "present": false }, { "factor": "acute_mi_or_ischemic_stroke", "points": 0, "present": false }, { "factor": "acute_infection_or_rheumatologic_disorder", "points": 0, "present": false }, { "factor": "obesity", "points": 0, "present": false }, { "factor": "ongoing_hormonal_treatment", "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": "Barbar S, Noventa F, Rossetto V, et al.", "doi": "10.1111/j.1538-7836.2010.04044.x", "id": "barbar-2010", "source": "J Thromb Haemost. 2010;8(11):2450-2457", "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score" }, "formula": "padua", "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high", "max_score": 20, "score": 0, "age_years": 50, "padua_risk": "low" }, { "components": [ { "factor": "active_cancer", "points": 0, "present": false }, { "factor": "previous_vte", "points": 0, "present": false }, { "factor": "reduced_mobility", "points": 0, "present": false }, { "factor": "thrombophilic_condition", "points": 0, "present": false }, { "factor": "recent_trauma_or_surgery", "points": 0, "present": false }, { "value": 50, "factor": "age_ge_70", "points": 0, "present": false }, { "factor": "heart_or_respiratory_failure", "points": 0, "present": false }, { "factor": "acute_mi_or_ischemic_stroke", "points": 0, "present": false }, { "factor": "acute_infection_or_rheumatologic_disorder", "points": 0, "present": false }, { "factor": "obesity", "points": 0, "present": false }, { "factor": "ongoing_hormonal_treatment", "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": "Barbar S, Noventa F, Rossetto V, et al.", "doi": "10.1111/j.1538-7836.2010.04044.x", "id": "barbar-2010", "source": "J Thromb Haemost. 2010;8(11):2450-2457", "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score" }, "formula": "padua", "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high", "max_score": 20, "score": 0, "age_years": 50, "padua_risk": "low" } ] } ``` ## Response fields - `formula` (string): padua - `formula_expression` (string): Exact expression used - `score` (integer): Total points 0-20 - `max_score` (integer): Always 20 - `padua_risk` (string): low when score is <4; high when score is ≥4. Not a diagnosis. - `age_years` (integer): Age used for the ≥70 criterion - `components` (array): Per-item points - `citation` (object): Barbar 2010 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "active_cancer", "points": 0, "present": false }, { "factor": "previous_vte", "points": 0, "present": false }, { "factor": "reduced_mobility", "points": 0, "present": false }, { "factor": "thrombophilic_condition", "points": 0, "present": false }, { "factor": "recent_trauma_or_surgery", "points": 0, "present": false }, { "value": 50, "factor": "age_ge_70", "points": 0, "present": false }, { "factor": "heart_or_respiratory_failure", "points": 0, "present": false }, { "factor": "acute_mi_or_ischemic_stroke", "points": 0, "present": false }, { "factor": "acute_infection_or_rheumatologic_disorder", "points": 0, "present": false }, { "factor": "obesity", "points": 0, "present": false }, { "factor": "ongoing_hormonal_treatment", "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": "Barbar S, Noventa F, Rossetto V, et al.", "doi": "10.1111/j.1538-7836.2010.04044.x", "id": "barbar-2010", "source": "J Thromb Haemost. 2010;8(11):2450-2457", "title": "A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score" }, "formula": "padua", "formula_expression": "Padua = active_cancer (3) + previous_vte (3) + reduced_mobility (3) + thrombophilic_condition (3) + recent_trauma_or_surgery (2) + age>=70 (1) + heart_or_respiratory_failure (1) + acute_mi_or_ischemic_stroke (1) + acute_infection_or_rheumatologic_disorder (1) + obesity (1) + ongoing_hormonal_treatment (1); max 20; <4 low, >=4 high", "max_score": 20, "score": 0, "age_years": 50, "padua_risk": "low" } ``` ## Errors - HTTP 400 `invalid_age`: age must be an integer from 18 to 120 Returned before settlement; you are not charged. - 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 DVT](https://magentlab.com/docs/wells-dvt) — Compute the Wells deep-vein thrombosis probability score and return three-tier and two-tier bands. ## Payment Required query parameters must be present and valid. 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 EIP-3009 (scheme exact, assetTransferMethod eip3009) with validBefore = now + accepts[0].maxTimeoutSeconds (600 seconds). That window starts when you sign and must cover wallet confirmation plus CDP verify and settle. Magent retries transient facilitator 429/5xx before answering. Do not send upto or batch-settlement payloads; magent does not offer those schemes. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON echoing accepted, payload, and extensions when present). - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. Settlement happens before the tool runs. HTTP 503 settlement_uncertain or settle_failed: retry the same PAYMENT-SIGNATURE. Mint a new 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. - 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. - not offered `batch-settlement`: Not offered. Payment-channel vouchers claimed later in batches. Not the same as POST {items} bulk (that is still exact). Same-path POST {items} is still scheme exact: one EIP-3009 authorization for n times the GET unit. 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 - Invalid query parameters return HTTP 400 before settlement. You are not charged. - Settlement finishes before the tool executes (paymentFlow upfront). 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.