# Geneva VTE prophylaxis score Geneva prophylaxis score Status: LIVE Price: $0.005 USDC `GET /api/calc/geneva_prophylaxis` HTML: https://magentlab.com/docs/geneva-prophylaxis Markdown: https://magentlab.com/docs/geneva-prophylaxis.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Compute the Chopard 2006 Geneva risk score for VTE thromboprophylaxis in acutely ill medical inpatients from age and caller-assigned findings. ## When to use When an agent needs the published Chopard 2006 Geneva prophylaxis point total (not the Revised Geneva PE diagnostic score, not Padua) for an acutely ill medical inpatient. ## When not to use - Not a medical device and not a diagnosis of VTE. magent does not examine the patient; every flag is caller-assigned. - Chopard 2006 Geneva prophylaxis score for acutely ill medical inpatients only. Not the Revised Geneva PE diagnostic score (Le Gal 2006). Not Padua. - Obesity is a caller-applied BMI >30 flag; magent does not take height or weight. - Immobilization is a caller-applied flag (walk <30 min/day for ≥3 days); magent does not observe walking time. - Does not return Padua points, PE probabilities, or a prophylaxis regimen. risk_group high means published score ≥3 (prophylaxis indicated in the letter), not an order. ## Formula ``` geneva_prophylaxis = cardiac_failure (2) + respiratory_failure (2) + recent_stroke (2) + recent_myocardial_infarction (2) + acute_infectious_disease (2) + acute_rheumatic_disease (2) + malignancy (2) + myeloproliferative_syndrome (2) + nephrotic_syndrome (2) + history_of_vte (2) + known_hypercoagulable_state (2) + immobilization_ge_3d (1) + recent_travel_gt_6h (1) + age>60 (1) + obesity_bmi_gt_30 (1) + chronic_venous_insufficiency (1) + pregnancy (1) + hormonal_therapy (1) + dehydration (1); Chopard 2006 letter table; max 30; <3 low, >=3 high (prophylaxis indicated) ``` ## Citation [Identifying acutely ill medical patients requiring thromboprophylaxis](https://doi.org/10.1111/j.1538-7836.2006.01818.x) Chopard P, Spirk D, Bounameaux H J Thromb Haemost. 2006;4(4):915-916 DOI: [10.1111/j.1538-7836.2006.01818.x](https://doi.org/10.1111/j.1538-7836.2006.01818.x) ## Worked example ### All items absent Given: `acute_infectious_disease=false, acute_rheumatic_disease=false, age=50, cardiac_failure=false, chronic_venous_insufficiency=false, dehydration=false, history_of_vte=false, hormonal_therapy=false, immobilization_ge_3d=false, known_hypercoagulable_state=false, malignancy=false, myeloproliferative_syndrome=false, nephrotic_syndrome=false, obesity_bmi_gt_30=false, pregnancy=false, recent_myocardial_infarction=false, recent_stroke=false, recent_travel_gt_6h=false, respiratory_failure=false` 1. Age 50 is not >60 → 0; all eighteen flags false → 0 2. Score = 0 (max 30); risk_group low ### Cardiac failure plus immobilization is high Given: `acute_infectious_disease=false, acute_rheumatic_disease=false, age=50, cardiac_failure=true, chronic_venous_insufficiency=false, dehydration=false, history_of_vte=false, hormonal_therapy=false, immobilization_ge_3d=true, known_hypercoagulable_state=false, malignancy=false, myeloproliferative_syndrome=false, nephrotic_syndrome=false, obesity_bmi_gt_30=false, pregnancy=false, recent_myocardial_infarction=false, recent_stroke=false, recent_travel_gt_6h=false, respiratory_failure=false` 1. cardiac_failure → 2; immobilization_ge_3d → 1 2. Score = 3 (max 30); risk_group high (prophylaxis indicated ≥3) ## Also searched as - Geneva prophylaxis score - Chopard 2006 Geneva score - Geneva thromboprophylaxis score - Chopard VTE prophylaxis - acutely ill medical VTE score - Geneva medical inpatient VTE - Chopard Geneva risk score ## Parameters - `age` (integer, required): Age in years (18-120). Age >60 scores 1 (Chopard 2006). Age 60 is the ≤60 arm and scores 0. - `cardiac_failure` (boolean, required): Cardiac failure as assigned by the caller (Chopard 2006 Geneva prophylaxis table). true scores 2. magent does not examine the patient. - `respiratory_failure` (boolean, required): Respiratory failure as assigned by the caller (Chopard 2006). true scores 2. magent does not examine the patient. - `recent_stroke` (boolean, required): Recent stroke as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose stroke. - `recent_myocardial_infarction` (boolean, required): Recent myocardial infarction as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose myocardial infarction. - `acute_infectious_disease` (boolean, required): Acute infectious disease including sepsis as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose infection. - `acute_rheumatic_disease` (boolean, required): Acute rheumatic disease as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose rheumatic disease. - `malignancy` (boolean, required): Malignancy as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose cancer. - `myeloproliferative_syndrome` (boolean, required): Myeloproliferative syndrome as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose a myeloproliferative neoplasm. - `nephrotic_syndrome` (boolean, required): Nephrotic syndrome as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose nephrotic syndrome. - `history_of_vte` (boolean, required): History of VTE as assigned by the caller (Chopard 2006). true scores 2. magent does not diagnose VTE. - `known_hypercoagulable_state` (boolean, required): Known hypercoagulable state as assigned by the caller (Chopard 2006). true scores 2. magent does not interpret a thrombophilia panel. - `immobilization_ge_3d` (boolean, required): Immobilization as assigned by the caller (walk <30 min/day for ≥3 days, Chopard 2006). true scores 1. magent does not observe walking time. - `recent_travel_gt_6h` (boolean, required): Recent travel >6 hours as assigned by the caller (Chopard 2006). true scores 1. - `obesity_bmi_gt_30` (boolean, required): Obesity as assigned by the caller (BMI >30, Chopard 2006). true scores 1. magent does not take height or weight. - `chronic_venous_insufficiency` (boolean, required): Chronic venous insufficiency as assigned by the caller (Chopard 2006). true scores 1. magent does not examine the patient. - `pregnancy` (boolean, required): Pregnancy as assigned by the caller (Chopard 2006). true scores 1. magent does not confirm pregnancy. - `hormonal_therapy` (boolean, required): Hormonal therapy as assigned by the caller (Chopard 2006). true scores 1. - `dehydration` (boolean, required): Dehydration as assigned by the caller (Chopard 2006). true scores 1. magent does not assay volume status. ## 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/geneva_prophylaxis` 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": [ { "acute_infectious_disease": "false", "acute_rheumatic_disease": "false", "age": "50", "cardiac_failure": "false", "chronic_venous_insufficiency": "false", "dehydration": "false", "history_of_vte": "false", "hormonal_therapy": "false", "immobilization_ge_3d": "false", "known_hypercoagulable_state": "false", "malignancy": "false", "myeloproliferative_syndrome": "false", "nephrotic_syndrome": "false", "obesity_bmi_gt_30": "false", "pregnancy": "false", "recent_myocardial_infarction": "false", "recent_stroke": "false", "recent_travel_gt_6h": "false", "respiratory_failure": "false" }, { "acute_infectious_disease": "false", "acute_rheumatic_disease": "false", "age": "50", "cardiac_failure": "false", "chronic_venous_insufficiency": "false", "dehydration": "false", "history_of_vte": "false", "hormonal_therapy": "false", "immobilization_ge_3d": "false", "known_hypercoagulable_state": "false", "malignancy": "false", "myeloproliferative_syndrome": "false", "nephrotic_syndrome": "false", "obesity_bmi_gt_30": "false", "pregnancy": "false", "recent_myocardial_infarction": "false", "recent_stroke": "false", "recent_travel_gt_6h": "false", "respiratory_failure": "false" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/geneva-prophylaxis Example 200: ```json { "count": 2, "path": "/api/calc/geneva_prophylaxis", "items": [ { "components": [ { "factor": "cardiac_failure", "points": 0, "present": false }, { "factor": "respiratory_failure", "points": 0, "present": false }, { "factor": "recent_stroke", "points": 0, "present": false }, { "factor": "recent_myocardial_infarction", "points": 0, "present": false }, { "factor": "acute_infectious_disease", "points": 0, "present": false }, { "factor": "acute_rheumatic_disease", "points": 0, "present": false }, { "factor": "malignancy", "points": 0, "present": false }, { "factor": "myeloproliferative_syndrome", "points": 0, "present": false }, { "factor": "nephrotic_syndrome", "points": 0, "present": false }, { "factor": "history_of_vte", "points": 0, "present": false }, { "factor": "known_hypercoagulable_state", "points": 0, "present": false }, { "factor": "immobilization_ge_3d", "points": 0, "present": false }, { "factor": "recent_travel_gt_6h", "points": 0, "present": false }, { "value": 50, "factor": "age_gt_60", "points": 0, "present": false }, { "factor": "obesity_bmi_gt_30", "points": 0, "present": false }, { "factor": "chronic_venous_insufficiency", "points": 0, "present": false }, { "factor": "pregnancy", "points": 0, "present": false }, { "factor": "hormonal_therapy", "points": 0, "present": false }, { "factor": "dehydration", "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": "Chopard P, Spirk D, Bounameaux H", "doi": "10.1111/j.1538-7836.2006.01818.x", "id": "chopard-2006", "pmid": "16553641", "source": "J Thromb Haemost. 2006;4(4):915-916", "title": "Identifying acutely ill medical patients requiring thromboprophylaxis" }, "formula": "geneva_prophylaxis", "formula_expression": "geneva_prophylaxis = cardiac_failure (2) + respiratory_failure (2) + recent_stroke (2) + recent_myocardial_infarction (2) + acute_infectious_disease (2) + acute_rheumatic_disease (2) + malignancy (2) + myeloproliferative_syndrome (2) + nephrotic_syndrome (2) + history_of_vte (2) + known_hypercoagulable_state (2) + immobilization_ge_3d (1) + recent_travel_gt_6h (1) + age>60 (1) + obesity_bmi_gt_30 (1) + chronic_venous_insufficiency (1) + pregnancy (1) + hormonal_therapy (1) + dehydration (1); Chopard 2006 letter table; max 30; <3 low, >=3 high (prophylaxis indicated)", "age_years": 50, "max_score": 30, "score": 0, "risk_group": "low" }, { "components": [ { "factor": "cardiac_failure", "points": 0, "present": false }, { "factor": "respiratory_failure", "points": 0, "present": false }, { "factor": "recent_stroke", "points": 0, "present": false }, { "factor": "recent_myocardial_infarction", "points": 0, "present": false }, { "factor": "acute_infectious_disease", "points": 0, "present": false }, { "factor": "acute_rheumatic_disease", "points": 0, "present": false }, { "factor": "malignancy", "points": 0, "present": false }, { "factor": "myeloproliferative_syndrome", "points": 0, "present": false }, { "factor": "nephrotic_syndrome", "points": 0, "present": false }, { "factor": "history_of_vte", "points": 0, "present": false }, { "factor": "known_hypercoagulable_state", "points": 0, "present": false }, { "factor": "immobilization_ge_3d", "points": 0, "present": false }, { "factor": "recent_travel_gt_6h", "points": 0, "present": false }, { "value": 50, "factor": "age_gt_60", "points": 0, "present": false }, { "factor": "obesity_bmi_gt_30", "points": 0, "present": false }, { "factor": "chronic_venous_insufficiency", "points": 0, "present": false }, { "factor": "pregnancy", "points": 0, "present": false }, { "factor": "hormonal_therapy", "points": 0, "present": false }, { "factor": "dehydration", "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": "Chopard P, Spirk D, Bounameaux H", "doi": "10.1111/j.1538-7836.2006.01818.x", "id": "chopard-2006", "pmid": "16553641", "source": "J Thromb Haemost. 2006;4(4):915-916", "title": "Identifying acutely ill medical patients requiring thromboprophylaxis" }, "formula": "geneva_prophylaxis", "formula_expression": "geneva_prophylaxis = cardiac_failure (2) + respiratory_failure (2) + recent_stroke (2) + recent_myocardial_infarction (2) + acute_infectious_disease (2) + acute_rheumatic_disease (2) + malignancy (2) + myeloproliferative_syndrome (2) + nephrotic_syndrome (2) + history_of_vte (2) + known_hypercoagulable_state (2) + immobilization_ge_3d (1) + recent_travel_gt_6h (1) + age>60 (1) + obesity_bmi_gt_30 (1) + chronic_venous_insufficiency (1) + pregnancy (1) + hormonal_therapy (1) + dehydration (1); Chopard 2006 letter table; max 30; <3 low, >=3 high (prophylaxis indicated)", "age_years": 50, "max_score": 30, "score": 0, "risk_group": "low" } ] } ``` ## Response fields - `formula` (string): geneva_prophylaxis - `formula_expression` (string): Exact expression used - `score` (integer): Total points 0-30 - `max_score` (integer): Always 30 (11×2 + 8×1) - `risk_group` (string): low when score is <3; high when score is ≥3 (Chopard 2006 prophylaxis indicated). Not a diagnosis or prophylaxis order. Not Padua. - `age_years` (integer): Age used for the >60 criterion - `components` (array): Per-factor points - `citation` (object): Chopard 2006 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "cardiac_failure", "points": 0, "present": false }, { "factor": "respiratory_failure", "points": 0, "present": false }, { "factor": "recent_stroke", "points": 0, "present": false }, { "factor": "recent_myocardial_infarction", "points": 0, "present": false }, { "factor": "acute_infectious_disease", "points": 0, "present": false }, { "factor": "acute_rheumatic_disease", "points": 0, "present": false }, { "factor": "malignancy", "points": 0, "present": false }, { "factor": "myeloproliferative_syndrome", "points": 0, "present": false }, { "factor": "nephrotic_syndrome", "points": 0, "present": false }, { "factor": "history_of_vte", "points": 0, "present": false }, { "factor": "known_hypercoagulable_state", "points": 0, "present": false }, { "factor": "immobilization_ge_3d", "points": 0, "present": false }, { "factor": "recent_travel_gt_6h", "points": 0, "present": false }, { "value": 50, "factor": "age_gt_60", "points": 0, "present": false }, { "factor": "obesity_bmi_gt_30", "points": 0, "present": false }, { "factor": "chronic_venous_insufficiency", "points": 0, "present": false }, { "factor": "pregnancy", "points": 0, "present": false }, { "factor": "hormonal_therapy", "points": 0, "present": false }, { "factor": "dehydration", "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": "Chopard P, Spirk D, Bounameaux H", "doi": "10.1111/j.1538-7836.2006.01818.x", "id": "chopard-2006", "pmid": "16553641", "source": "J Thromb Haemost. 2006;4(4):915-916", "title": "Identifying acutely ill medical patients requiring thromboprophylaxis" }, "formula": "geneva_prophylaxis", "formula_expression": "geneva_prophylaxis = cardiac_failure (2) + respiratory_failure (2) + recent_stroke (2) + recent_myocardial_infarction (2) + acute_infectious_disease (2) + acute_rheumatic_disease (2) + malignancy (2) + myeloproliferative_syndrome (2) + nephrotic_syndrome (2) + history_of_vte (2) + known_hypercoagulable_state (2) + immobilization_ge_3d (1) + recent_travel_gt_6h (1) + age>60 (1) + obesity_bmi_gt_30 (1) + chronic_venous_insufficiency (1) + pregnancy (1) + hormonal_therapy (1) + dehydration (1); Chopard 2006 letter table; max 30; <3 low, >=3 high (prophylaxis indicated)", "age_years": 50, "max_score": 30, "score": 0, "risk_group": "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_geneva_prophylaxis`: each Chopard 2006 Geneva prophylaxis flag must be true or false. 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 - [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. 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.