Neurology · LIVE

Acute Stroke Dysphagia Screen

Apply the Edmiaston 2010 five-item Acute Stroke Dysphagia Screen and return whether all five criteria hold (asds_pass).

LIVE $0.005 USDC GET /api/calc/asds

Markdown: /docs/asds.md · Canonical: https://magentlab.com/docs/asds

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

What it computes

Apply the Edmiaston 2010 five-item Acute Stroke Dysphagia Screen and return whether all five criteria hold (asds_pass).

When to use

When an agent already has a caller-assigned total GCS 3-15 and the four bedside flags (facial, tongue, palatal, 3-ounce water-swallow aspiration signs) and needs the published fail-any screen result, not a swallow diagnosis or diet order.

When not to use

• Not a medical device.
• Not a diagnosis of dysphagia and not a diet order.
• The caller assigns GCS and the four bedside flags. magent does not examine cranial nerves, assign GCS, or administer a 3-ounce water swallow.
• A fail is not a swallow-study order. A pass is not clearance for oral intake.

Formula

asds_pass iff GCS >= 13 and no facial_asymmetry_or_weakness and no tongue_asymmetry_or_weakness and no palatal_asymmetry_or_weakness and no water_swallow_aspiration_signs (Edmiaston 2010 five-item fail-any)

Citation

Title

Validation of a dysphagia screening tool in acute stroke patients

Authors

Edmiaston J, Connor LT, Loehr L, Nassief A

Source

Am J Crit Care. 2010;19(4):357-364

DOI

10.4037/ajcc2009961

Worked example

Also searched as

• stroke dysphagia screen
• acute stroke dysphagia screen
• 3 ounce water swallow
• Edmiaston dysphagia screen
• ASDS
• acute stroke swallow screen
• dysphagia screening tool

Try

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

/api/calc/asds?gcs=15&facial_asymmetry_or_weakness=false&tongue_asymmetry_or_weakness=false&palatal_asymmetry_or_weakness=false&water_swallow_aspiration_signs=false

Full URL: https://api.magentlab.com/api/calc/asds?gcs=15&facial_asymmetry_or_weakness=false&tongue_asymmetry_or_weakness=false&palatal_asymmetry_or_weakness=false&water_swallow_aspiration_signs=false

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/asds?gcs=15&facial_asymmetry_or_weakness=false&tongue_asymmetry_or_weakness=false&palatal_asymmetry_or_weakness=false&water_swallow_aspiration_signs=false"

Parameters

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/asds 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": [
    {
      "facial_asymmetry_or_weakness": "false",
      "gcs": "15",
      "palatal_asymmetry_or_weakness": "false",
      "tongue_asymmetry_or_weakness": "false",
      "water_swallow_aspiration_signs": "false"
    },
    {
      "facial_asymmetry_or_weakness": "false",
      "gcs": "15",
      "palatal_asymmetry_or_weakness": "false",
      "tongue_asymmetry_or_weakness": "false",
      "water_swallow_aspiration_signs": "false"
    }
  ]
}

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/asds",
  "items": [
    {
      "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": "Edmiaston J, Connor LT, Loehr L, Nassief A",
        "doi": "10.4037/ajcc2009961",
        "id": "edmiaston-2010",
        "pmid": "19875722",
        "source": "Am J Crit Care. 2010;19(4):357-364",
        "title": "Validation of a dysphagia screening tool in acute stroke patients"
      },
      "formula": "asds",
      "formula_expression": "asds_pass iff GCS >= 13 and no facial_asymmetry_or_weakness and no tongue_asymmetry_or_weakness and no palatal_asymmetry_or_weakness and no water_swallow_aspiration_signs (Edmiaston 2010 five-item fail-any)",
      "criteria": [
        {
          "value": 15,
          "factor": "gcs_ge_13",
          "met": true
        },
        {
          "factor": "no_facial_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_tongue_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_palatal_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_water_swallow_aspiration_signs",
          "met": true
        }
      ],
      "asds_pass": 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": "Edmiaston J, Connor LT, Loehr L, Nassief A",
        "doi": "10.4037/ajcc2009961",
        "id": "edmiaston-2010",
        "pmid": "19875722",
        "source": "Am J Crit Care. 2010;19(4):357-364",
        "title": "Validation of a dysphagia screening tool in acute stroke patients"
      },
      "formula": "asds",
      "formula_expression": "asds_pass iff GCS >= 13 and no facial_asymmetry_or_weakness and no tongue_asymmetry_or_weakness and no palatal_asymmetry_or_weakness and no water_swallow_aspiration_signs (Edmiaston 2010 five-item fail-any)",
      "criteria": [
        {
          "value": 15,
          "factor": "gcs_ge_13",
          "met": true
        },
        {
          "factor": "no_facial_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_tongue_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_palatal_asymmetry_or_weakness",
          "met": true
        },
        {
          "factor": "no_water_swallow_aspiration_signs",
          "met": true
        }
      ],
      "asds_pass": true
    }
  ]
}

Response

Example JSON

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

{
  "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": "Edmiaston J, Connor LT, Loehr L, Nassief A",
    "doi": "10.4037/ajcc2009961",
    "id": "edmiaston-2010",
    "pmid": "19875722",
    "source": "Am J Crit Care. 2010;19(4):357-364",
    "title": "Validation of a dysphagia screening tool in acute stroke patients"
  },
  "formula": "asds",
  "formula_expression": "asds_pass iff GCS >= 13 and no facial_asymmetry_or_weakness and no tongue_asymmetry_or_weakness and no palatal_asymmetry_or_weakness and no water_swallow_aspiration_signs (Edmiaston 2010 five-item fail-any)",
  "criteria": [
    {
      "value": 15,
      "factor": "gcs_ge_13",
      "met": true
    },
    {
      "factor": "no_facial_asymmetry_or_weakness",
      "met": true
    },
    {
      "factor": "no_tongue_asymmetry_or_weakness",
      "met": true
    },
    {
      "factor": "no_palatal_asymmetry_or_weakness",
      "met": true
    },
    {
      "factor": "no_water_swallow_aspiration_signs",
      "met": true
    }
  ],
  "asds_pass": true
}

Client errors (HTTP 400)

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

Related tools

• Glasgow Coma Scale — Compute the Glasgow Coma Scale as the sum of caller-assigned eye, verbal, and motor integers. The 1974 or 1976 edition is required.
• NIHSS — Sum Brott 1989 NIH stroke scale points from 15 caller-assigned examination integers, including pupillary response and plantar reflex. Weaker-limb motor arm and leg. Does not apply later total-score severity bands.

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.