# Westley croup score (1978) Westley croup Status: LIVE Price: $0.005 USDC `GET /api/calc/westley_croup` HTML: https://magentlab.com/docs/westley-croup Markdown: https://magentlab.com/docs/westley-croup.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Sum the Westley 1978 croup clinical score from caller-assigned consciousness, cyanosis, stridor, air entry, and retractions (maximum 17). ## When to use When an agent needs the published Westley croup score and must not invent a severity band, steroid indication, or a different croup score. ## When not to use - Not a diagnosis of croup and not a treatment or admission order. magent does not examine the child. - Each sign uses only the 1978 point values (consciousness 0 or 5; cyanosis 0, 4, or 5; stridor 0-2; air entry 0-2; retractions 0-3). - Westley 1978 does not publish mild/moderate/severe total-score cutoffs; magent does not invent them. ## Formula ``` Westley = consciousness + cyanosis + stridor + air_entry + retractions; max 17 ``` ## Citation [Nebulized racemic epinephrine by IPPB for the treatment of croup: a double-blind study](https://doi.org/10.1001/archpedi.1978.02120300044006) Westley CR, Cotton EK, Brooks JG Am J Dis Child. 1978;132(5):484-487 DOI: [10.1001/archpedi.1978.02120300044006](https://doi.org/10.1001/archpedi.1978.02120300044006) ## Worked example ### Stridor with agitation and mild retractions Given: `air_entry=0, consciousness=0, cyanosis=0, retractions=1, stridor=1` 1. consciousness 0 + cyanosis 0 + stridor 1 + air_entry 0 + retractions 1 2. Score = 2 ### Maximum 17 Given: `air_entry=2, consciousness=5, cyanosis=5, retractions=3, stridor=2` 1. 5+5+2+2+3 = 17 ## Also searched as - Westley croup score - Westley score - croup severity score - racemic epinephrine croup score - pediatric croup score - Westley 1978 ## Parameters - `consciousness` (integer, required): Westley 1978 level of consciousness: 0 normal, 5 disoriented. Caller-assigned. - `cyanosis` (integer, required): Cyanosis: 0 none, 4 with agitation, 5 at rest. Caller-assigned. - `stridor` (integer, required): Stridor: 0 none, 1 with agitation, 2 at rest. Caller-assigned. - `air_entry` (integer, required): Air entry: 0 normal, 1 decreased, 2 markedly decreased. Caller-assigned. - `retractions` (integer, required): Chest-wall retractions: 0 none, 1 mild, 2 moderate, 3 severe. Caller-assigned. ## 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/westley_croup` 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": [ { "air_entry": "0", "consciousness": "0", "cyanosis": "0", "retractions": "1", "stridor": "1" }, { "air_entry": "0", "consciousness": "0", "cyanosis": "0", "retractions": "1", "stridor": "1" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/westley-croup Example 200: ```json { "count": 2, "path": "/api/calc/westley_croup", "items": [ { "components": [ { "factor": "consciousness", "points": 0, "present": false }, { "factor": "cyanosis", "points": 0, "present": false }, { "factor": "stridor", "points": 1, "present": true }, { "factor": "air_entry", "points": 0, "present": false }, { "factor": "retractions", "points": 1, "present": true } ], "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": "Westley CR, Cotton EK, Brooks JG", "doi": "10.1001/archpedi.1978.02120300044006", "id": "westley-1978", "source": "Am J Dis Child. 1978;132(5):484-487", "title": "Nebulized racemic epinephrine by IPPB for the treatment of croup: a double-blind study" }, "formula": "westley_croup", "formula_expression": "Westley = consciousness + cyanosis + stridor + air_entry + retractions; max 17", "max_score": 17, "score": 2, "air_entry": 0, "consciousness": 0, "cyanosis": 0, "retractions": 1, "stridor": 1 }, { "components": [ { "factor": "consciousness", "points": 0, "present": false }, { "factor": "cyanosis", "points": 0, "present": false }, { "factor": "stridor", "points": 1, "present": true }, { "factor": "air_entry", "points": 0, "present": false }, { "factor": "retractions", "points": 1, "present": true } ], "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": "Westley CR, Cotton EK, Brooks JG", "doi": "10.1001/archpedi.1978.02120300044006", "id": "westley-1978", "source": "Am J Dis Child. 1978;132(5):484-487", "title": "Nebulized racemic epinephrine by IPPB for the treatment of croup: a double-blind study" }, "formula": "westley_croup", "formula_expression": "Westley = consciousness + cyanosis + stridor + air_entry + retractions; max 17", "max_score": 17, "score": 2, "air_entry": 0, "consciousness": 0, "cyanosis": 0, "retractions": 1, "stridor": 1 } ] } ``` ## Response fields - `formula` (string): westley_croup - `formula_expression` (string): Westley 1978 sum - `score` (integer): Total 0-17 - `max_score` (integer): 17 - `consciousness` (integer): 0 or 5 - `cyanosis` (integer): 0, 4, or 5 - `stridor` (integer): 0-2 - `air_entry` (integer): 0-2 - `retractions` (integer): 0-3 - `components` (array): Per-sign points - `citation` (object): Westley 1978 - `disclaimer` (string): Not a medical device ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "consciousness", "points": 0, "present": false }, { "factor": "cyanosis", "points": 0, "present": false }, { "factor": "stridor", "points": 1, "present": true }, { "factor": "air_entry", "points": 0, "present": false }, { "factor": "retractions", "points": 1, "present": true } ], "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": "Westley CR, Cotton EK, Brooks JG", "doi": "10.1001/archpedi.1978.02120300044006", "id": "westley-1978", "source": "Am J Dis Child. 1978;132(5):484-487", "title": "Nebulized racemic epinephrine by IPPB for the treatment of croup: a double-blind study" }, "formula": "westley_croup", "formula_expression": "Westley = consciousness + cyanosis + stridor + air_entry + retractions; max 17", "max_score": 17, "score": 2, "air_entry": 0, "consciousness": 0, "cyanosis": 0, "retractions": 1, "stridor": 1 } ``` ## Errors - HTTP 400 `invalid_westley_consciousness`: consciousness must be 0 (normal) or 5 (disoriented). Returned before settlement; you are not charged. - HTTP 400 `invalid_westley_cyanosis`: cyanosis must be 0 (none), 4 (with agitation), or 5 (at rest). Returned before settlement; you are not charged. - HTTP 400 `invalid_westley_stridor`: stridor must be 0 (none), 1 (with agitation), or 2 (at rest). Returned before settlement; you are not charged. - HTTP 400 `invalid_westley_air_entry`: air_entry must be 0 (normal), 1 (decreased), or 2 (markedly decreased). Returned before settlement; you are not charged. - HTTP 400 `invalid_westley_retractions`: retractions must be 0 (none), 1 (mild), 2 (moderate), or 3 (severe). 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 - [Pediatric ETT size](https://magentlab.com/docs/pediatric-ett) — Compute Cole 1957 uncuffed pediatric endotracheal tube internal diameter from age in years. - [Apgar score](https://magentlab.com/docs/apgar) — Compute the Apgar newborn evaluation score as the sum of five caller-assigned 0-2 signs. ## 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 echoing accepted, payload, and extensions when present). - 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.