MAGENT

Emergency · LIVE

ESAS-r (Watanabe)

ESAS-r

Sum nine caller-assigned Watanabe 2011 ESAS-r integers (0-10) and return the total (max 90). Does not invent severity classes for the sum.

LIVE $0.005 USDC GET /api/calc/esas_r

Markdown: /docs/esas-r.md · Canonical: https://magentlab.com/docs/esas-r

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Sum nine caller-assigned Watanabe 2011 ESAS-r integers (0-10) and return the total (max 90). Does not invent severity classes for the sum.

When to use

When an agent has already assigned Watanabe 2011 ESAS-r 0-10 integers for the nine core items (now) and needs the published total, not a diagnosis, treatment order, Bruera 1991 ESAS, or ESAS-r Renal.

When not to use

  • Not a medical device and not a diagnosis or treatment order.
  • Each of the nine items is a caller-assigned integer 0-10 (0 none/best, 10 worst) for how the person feels now. magent does not administer the form.
  • This is Watanabe 2011 ESAS-r only (nine core items; max 90). magent does not score Bruera 1991 original ESAS. Itch, sleep, and restless legs are not core ESAS-r items (those appear on ESAS-r Renal). The optional other-problem line is not a required input.
  • Watanabe 2011 published the nine 0-10 ratings and did not publish severity classes for a summed total. This tool returns score and max_score only. It does not invent mild, moderate, or severe bands.

Formula

ESAS-r = pain + tiredness + drowsiness + nausea + lack_of_appetite + shortness_of_breath + depression + anxiety + wellbeing; each caller-assigned 0-10; max 90; Watanabe 2011; no total-score severity classes; not Bruera 1991 ESAS

Citation

Title
A multicenter study comparing two numerical versions of the Edmonton Symptom Assessment System in palliative care patients
Authors
Watanabe SM, Nekolaichuk C, Beaumont C, Johnson L, Myers J, Strasser F
Source
J Pain Symptom Manage. 2011;41(2):456-468
DOI
10.1016/j.jpainsymman.2010.04.020

Worked example

All items 0

Given: anxiety=0depression=0drowsiness=0lack_of_appetite=0nausea=0pain=0shortness_of_breath=0tiredness=0wellbeing=0

  1. pain, tiredness, drowsiness, nausea, lack_of_appetite, shortness_of_breath, depression, anxiety, and wellbeing are 0 as assigned by the caller
  2. Score = 0 (max 90). Watanabe 2011 published no total-score severity class.

All items 10

Given: anxiety=10depression=10drowsiness=10lack_of_appetite=10nausea=10pain=10shortness_of_breath=10tiredness=10wellbeing=10

  1. each of the nine Watanabe 2011 ESAS-r items is 10 as assigned by the caller
  2. Score = 90 (max 90). No total-score severity class.

Also searched as

  • ESAS-r
  • ESAS-r score
  • Edmonton Symptom Assessment System-revised
  • Watanabe ESAS-r
  • Watanabe 2011 ESAS-r
  • revised Edmonton Symptom Assessment System
  • ESAS revised nine-item NRS
  • palliative symptom assessment ESAS-r

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/esas_r?pain=0&tiredness=0&drowsiness=0&nausea=0&lack_of_appetite=0&shortness_of_breath=0&depression=0&anxiety=0&wellbeing=0

Full URL: https://api.magentlab.com/api/calc/esas_r?pain=0&tiredness=0&drowsiness=0&nausea=0&lack_of_appetite=0&shortness_of_breath=0&depression=0&anxiety=0&wellbeing=0

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge. 

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/esas_r?pain=0&tiredness=0&drowsiness=0&nausea=0&lack_of_appetite=0&shortness_of_breath=0&depression=0&anxiety=0&wellbeing=0"

Parameters

Name Type Required Description
pain integer required Caller-assigned Watanabe 2011 ESAS-r pain (integer 0-10): 0 no pain, 10 worst possible pain; how the person feels now. magent does not administer the form.
tiredness integer required Caller-assigned Watanabe 2011 ESAS-r tiredness (integer 0-10): 0 no tiredness, 10 worst possible tiredness (tiredness = lack of energy); how the person feels now. magent does not administer the form.
drowsiness integer required Caller-assigned Watanabe 2011 ESAS-r drowsiness (integer 0-10): 0 no drowsiness, 10 worst possible drowsiness (drowsiness = feeling sleepy); how the person feels now. magent does not administer the form.
nausea integer required Caller-assigned Watanabe 2011 ESAS-r nausea (integer 0-10): 0 no nausea, 10 worst possible nausea; how the person feels now. magent does not administer the form.
lack_of_appetite integer required Caller-assigned Watanabe 2011 ESAS-r lack of appetite (integer 0-10): 0 no lack of appetite, 10 worst possible lack of appetite; how the person feels now. magent does not administer the form.
shortness_of_breath integer required Caller-assigned Watanabe 2011 ESAS-r shortness of breath (integer 0-10): 0 no shortness of breath, 10 worst possible shortness of breath; how the person feels now. magent does not administer the form.
depression integer required Caller-assigned Watanabe 2011 ESAS-r depression (integer 0-10): 0 no depression, 10 worst possible depression (depression = feeling sad); how the person feels now. magent does not administer the form.
anxiety integer required Caller-assigned Watanabe 2011 ESAS-r anxiety (integer 0-10): 0 no anxiety, 10 worst possible anxiety (anxiety = feeling nervous); how the person feels now. magent does not administer the form.
wellbeing integer required Caller-assigned Watanabe 2011 ESAS-r wellbeing (integer 0-10): 0 best wellbeing, 10 worst possible wellbeing (wellbeing = how you feel overall); how the person feels now. magent does not administer the form.

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.

POST /api/calc/esas_r Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 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 (fixture)

{
  "items": [
    {
      "anxiety": "0",
      "depression": "0",
      "drowsiness": "0",
      "lack_of_appetite": "0",
      "nausea": "0",
      "pain": "0",
      "shortness_of_breath": "0",
      "tiredness": "0",
      "wellbeing": "0"
    },
    {
      "anxiety": "0",
      "depression": "0",
      "drowsiness": "0",
      "lack_of_appetite": "0",
      "nausea": "0",
      "pain": "0",
      "shortness_of_breath": "0",
      "tiredness": "0",
      "wellbeing": "0"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/esas_r",
  "items": [
    {
      "components": [
        {
          "value": 0,
          "factor": "pain",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "tiredness",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "drowsiness",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "nausea",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "lack_of_appetite",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "shortness_of_breath",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "depression",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "anxiety",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "wellbeing",
          "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": "Watanabe SM, Nekolaichuk C, Beaumont C, Johnson L, Myers J, Strasser F",
        "doi": "10.1016/j.jpainsymman.2010.04.020",
        "id": "watanabe-2011",
        "pmid": "20832987",
        "source": "J Pain Symptom Manage. 2011;41(2):456-468",
        "title": "A multicenter study comparing two numerical versions of the Edmonton Symptom Assessment System in palliative care patients"
      },
      "formula": "esas_r",
      "formula_expression": "ESAS-r = pain + tiredness + drowsiness + nausea + lack_of_appetite + shortness_of_breath + depression + anxiety + wellbeing; each caller-assigned 0-10; max 90; Watanabe 2011; no total-score severity classes; not Bruera 1991 ESAS",
      "max_score": 90,
      "score": 0
    },
    {
      "components": [
        {
          "value": 0,
          "factor": "pain",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "tiredness",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "drowsiness",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "nausea",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "lack_of_appetite",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "shortness_of_breath",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "depression",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "anxiety",
          "points": 0,
          "present": true
        },
        {
          "value": 0,
          "factor": "wellbeing",
          "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": "Watanabe SM, Nekolaichuk C, Beaumont C, Johnson L, Myers J, Strasser F",
        "doi": "10.1016/j.jpainsymman.2010.04.020",
        "id": "watanabe-2011",
        "pmid": "20832987",
        "source": "J Pain Symptom Manage. 2011;41(2):456-468",
        "title": "A multicenter study comparing two numerical versions of the Edmonton Symptom Assessment System in palliative care patients"
      },
      "formula": "esas_r",
      "formula_expression": "ESAS-r = pain + tiredness + drowsiness + nausea + lack_of_appetite + shortness_of_breath + depression + anxiety + wellbeing; each caller-assigned 0-10; max 90; Watanabe 2011; no total-score severity classes; not Bruera 1991 ESAS",
      "max_score": 90,
      "score": 0
    }
  ]
}

Response

Field Type Description
formula string esas_r
formula_expression string Exact expression used
score integer Watanabe 2011 ESAS-r sum of nine caller-assigned 0-10 items (0-90)
max_score integer Always 90
components array Per-item caller-assigned points
citation object Watanabe et al. J Pain Symptom Manage 2011 citation
disclaimer string Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup. 

{
  "components": [
    {
      "value": 0,
      "factor": "pain",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "tiredness",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "drowsiness",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "nausea",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "lack_of_appetite",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "shortness_of_breath",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "depression",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "anxiety",
      "points": 0,
      "present": true
    },
    {
      "value": 0,
      "factor": "wellbeing",
      "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": "Watanabe SM, Nekolaichuk C, Beaumont C, Johnson L, Myers J, Strasser F",
    "doi": "10.1016/j.jpainsymman.2010.04.020",
    "id": "watanabe-2011",
    "pmid": "20832987",
    "source": "J Pain Symptom Manage. 2011;41(2):456-468",
    "title": "A multicenter study comparing two numerical versions of the Edmonton Symptom Assessment System in palliative care patients"
  },
  "formula": "esas_r",
  "formula_expression": "ESAS-r = pain + tiredness + drowsiness + nausea + lack_of_appetite + shortness_of_breath + depression + anxiety + wellbeing; each caller-assigned 0-10; max 90; Watanabe 2011; no total-score severity classes; not Bruera 1991 ESAS",
  "max_score": 90,
  "score": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP Code When
400 invalid_esas_item each ESAS-r item must be an integer from 0 to 10 (Watanabe 2011). Returned before settlement; you are not charged.
400 invalid_items POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400 invalid_item_count items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400 invalid_item each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

  • PEG — Compute the Krebs 2009 PEG as the unweighted mean of three caller-assigned 0-10 integers (pain_average, enjoyment_of_life, general_activity). Potential range 0-10. Krebs 2009 did not publish a diagnostic cutoff.
  • PAINAD — Sum five caller-assigned Warden 2003 PAINAD integers (0-2) and return the published total (max 10).

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. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /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.