# RDOS (Campbell 2010) RDOS Status: LIVE Price: $0.005 USDC `GET /api/calc/rdos` HTML: https://magentlab.com/docs/rdos Markdown: https://magentlab.com/docs/rdos.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Sum the eight Campbell 2010 RDOS observer-rated items (each a caller-assigned integer 0-2) and return the published total (max 16). ## When to use When an agent has already assigned Campbell 2010 item integers for a patient unable to self-report dyspnea and needs the published 0-16 total, not a later intensity cutoff, opioid order, or oxygen order. ## When not to use - Not a medical device and not an opioid or oxygen order. - Each of the eight items is a caller-assigned integer 0, 1, or 2 from Campbell 2010. magent does not observe the patient and does not convert raw beats/min or breaths/min. - Campbell 2010 published the 0-16 instrument. magent does not apply later cutoff papers. ## Formula ``` RDOS = heart_rate + respiratory_rate + restlessness + paradoxical_breathing + accessory_muscle_use + grunting + nasal_flaring + look_of_fear; each caller-assigned 0-2; max 16 ``` ## Citation [A Respiratory Distress Observation Scale for patients unable to self-report dyspnea](https://doi.org/10.1089/jpm.2009.0229) Campbell ML, Templin T, Walch J J Palliat Med. 2010;13(3):285-290 DOI: [10.1089/jpm.2009.0229](https://doi.org/10.1089/jpm.2009.0229) ## Worked example ### All items 0 Given: `accessory_muscle_use=0, grunting=0, heart_rate=0, look_of_fear=0, nasal_flaring=0, paradoxical_breathing=0, respiratory_rate=0, restlessness=0` 1. heart_rate 0 + respiratory_rate 0 + restlessness 0 + paradoxical_breathing 0 + accessory_muscle_use 0 + grunting 0 + nasal_flaring 0 + look_of_fear 0 2. Score = 0 (max 16) ### All items 2 Given: `accessory_muscle_use=2, grunting=2, heart_rate=2, look_of_fear=2, nasal_flaring=2, paradoxical_breathing=2, respiratory_rate=2, restlessness=2` 1. heart_rate 2 + respiratory_rate 2 + restlessness 2 + paradoxical_breathing 2 + accessory_muscle_use 2 + grunting 2 + nasal_flaring 2 + look_of_fear 2 2. Score = 16 (max 16) ## Also searched as - RDOS - Respiratory Distress Observation Scale - Campbell RDOS - RDOS score - respiratory distress observation - Campbell 2010 dyspnea scale - observer-rated dyspnea ## Parameters - `heart_rate` (integer, required): Caller-assigned Campbell 2010 heart_rate points (integer 0-2). Paper bins: ≤90 beats/min → 0; 91–110 → 1; ≥111 → 2. magent does not convert raw beats/min and does not observe the patient. - `respiratory_rate` (integer, required): Caller-assigned Campbell 2010 respiratory_rate points (integer 0-2). Paper bins: ≤18 breaths/min → 0; 19–28 → 1; ≥29 → 2. magent does not convert raw breaths/min and does not observe the patient. - `restlessness` (integer, required): Caller-assigned Campbell 2010 restlessness (nonpurposeful movements) points (integer 0-2): 0 none; 1 occasional, slight movements; 2 frequent movements. magent does not observe the patient. - `paradoxical_breathing` (integer, required): Caller-assigned Campbell 2010 paradoxical_breathing points (integer 0-2). Paper scores 0 none or 2 present (abdomen moves in on inspiration); there is no 1-point cell. magent does not observe the patient. - `accessory_muscle_use` (integer, required): Caller-assigned Campbell 2010 accessory_muscle_use (rise in clavicle during inspiration) points (integer 0-2): 0 none; 1 slight rise; 2 pronounced rise. magent does not observe the patient. - `grunting` (integer, required): Caller-assigned Campbell 2010 grunting at end-expiration (guttural sound) points (integer 0-2). Paper scores 0 none or 2 present; there is no 1-point cell. magent does not observe the patient. - `nasal_flaring` (integer, required): Caller-assigned Campbell 2010 nasal_flaring (involuntary movement of nares) points (integer 0-2). Paper scores 0 none or 2 present; there is no 1-point cell. magent does not observe the patient. - `look_of_fear` (integer, required): Caller-assigned Campbell 2010 look_of_fear points (integer 0-2). Paper scores 0 none or 2 eyes wide open, facial muscles tense, brow furrowed, mouth open, teeth together; there is no 1-point cell. magent does not observe the patient. ## 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/rdos` 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": [ { "accessory_muscle_use": "0", "grunting": "0", "heart_rate": "0", "look_of_fear": "0", "nasal_flaring": "0", "paradoxical_breathing": "0", "respiratory_rate": "0", "restlessness": "0" }, { "accessory_muscle_use": "0", "grunting": "0", "heart_rate": "0", "look_of_fear": "0", "nasal_flaring": "0", "paradoxical_breathing": "0", "respiratory_rate": "0", "restlessness": "0" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/rdos Example 200: ```json { "count": 2, "path": "/api/calc/rdos", "items": [ { "components": [ { "value": 0, "factor": "heart_rate", "points": 0, "present": true }, { "value": 0, "factor": "respiratory_rate", "points": 0, "present": true }, { "value": 0, "factor": "restlessness", "points": 0, "present": true }, { "value": 0, "factor": "paradoxical_breathing", "points": 0, "present": true }, { "value": 0, "factor": "accessory_muscle_use", "points": 0, "present": true }, { "value": 0, "factor": "grunting", "points": 0, "present": true }, { "value": 0, "factor": "nasal_flaring", "points": 0, "present": true }, { "value": 0, "factor": "look_of_fear", "points": 0, "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": "Campbell ML, Templin T, Walch J", "doi": "10.1089/jpm.2009.0229", "id": "campbell-2010", "pmid": "20078243", "source": "J Palliat Med. 2010;13(3):285-290", "title": "A Respiratory Distress Observation Scale for patients unable to self-report dyspnea" }, "formula": "rdos", "formula_expression": "RDOS = heart_rate + respiratory_rate + restlessness + paradoxical_breathing + accessory_muscle_use + grunting + nasal_flaring + look_of_fear; each caller-assigned 0-2; max 16", "max_score": 16, "score": 0 }, { "components": [ { "value": 0, "factor": "heart_rate", "points": 0, "present": true }, { "value": 0, "factor": "respiratory_rate", "points": 0, "present": true }, { "value": 0, "factor": "restlessness", "points": 0, "present": true }, { "value": 0, "factor": "paradoxical_breathing", "points": 0, "present": true }, { "value": 0, "factor": "accessory_muscle_use", "points": 0, "present": true }, { "value": 0, "factor": "grunting", "points": 0, "present": true }, { "value": 0, "factor": "nasal_flaring", "points": 0, "present": true }, { "value": 0, "factor": "look_of_fear", "points": 0, "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": "Campbell ML, Templin T, Walch J", "doi": "10.1089/jpm.2009.0229", "id": "campbell-2010", "pmid": "20078243", "source": "J Palliat Med. 2010;13(3):285-290", "title": "A Respiratory Distress Observation Scale for patients unable to self-report dyspnea" }, "formula": "rdos", "formula_expression": "RDOS = heart_rate + respiratory_rate + restlessness + paradoxical_breathing + accessory_muscle_use + grunting + nasal_flaring + look_of_fear; each caller-assigned 0-2; max 16", "max_score": 16, "score": 0 } ] } ``` ## Response fields - `formula` (string): rdos - `formula_expression` (string): Exact expression used - `score` (integer): RDOS points 0-16 - `max_score` (integer): Always 16 - `components` (array): Per-item caller-assigned points - `citation` (object): Campbell et al. J Palliat Med 2010 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "value": 0, "factor": "heart_rate", "points": 0, "present": true }, { "value": 0, "factor": "respiratory_rate", "points": 0, "present": true }, { "value": 0, "factor": "restlessness", "points": 0, "present": true }, { "value": 0, "factor": "paradoxical_breathing", "points": 0, "present": true }, { "value": 0, "factor": "accessory_muscle_use", "points": 0, "present": true }, { "value": 0, "factor": "grunting", "points": 0, "present": true }, { "value": 0, "factor": "nasal_flaring", "points": 0, "present": true }, { "value": 0, "factor": "look_of_fear", "points": 0, "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": "Campbell ML, Templin T, Walch J", "doi": "10.1089/jpm.2009.0229", "id": "campbell-2010", "pmid": "20078243", "source": "J Palliat Med. 2010;13(3):285-290", "title": "A Respiratory Distress Observation Scale for patients unable to self-report dyspnea" }, "formula": "rdos", "formula_expression": "RDOS = heart_rate + respiratory_rate + restlessness + paradoxical_breathing + accessory_muscle_use + grunting + nasal_flaring + look_of_fear; each caller-assigned 0-2; max 16", "max_score": 16, "score": 0 } ``` ## Errors - HTTP 400 `invalid_rdos`: heart_rate, respiratory_rate, restlessness, paradoxical_breathing, accessory_muscle_use, grunting, nasal_flaring, and look_of_fear must each be an integer 0, 1, or 2 (Campbell 2010 RDOS). 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 - [NEWS2](https://magentlab.com/docs/news2) — Compute the RCP 2017 National Early Warning Score 2 from respiratory rate, SpO2 (Scale 1 or Scale 2), supplemental oxygen, temperature, systolic BP, heart rate, and caller-assigned ACVPU. - [mMRC](https://magentlab.com/docs/mmrc) — Return the Mahler 1988 modified Medical Research Council (mMRC) dyspnea grade 0-4 from a caller-assigned integer, with the published grade wording. ## 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.