GI · LIVE

Rome IV levator ani syndrome

Rao 2016 Rome IV levator ani syndrome

Apply the Rao 2016 Rome IV levator ani syndrome (F2a) diagnostic criteria and return whether the published levator ani box holds (rome_iv_levator_ani).

LIVE $0.005 USDC GET /api/calc/rome_iv_levator_ani

Markdown: /docs/rome-iv-levator-ani.md · Canonical: https://magentlab.com/docs/rome-iv-levator-ani

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

What it computes

Apply the Rao 2016 Rome IV levator ani syndrome (F2a) diagnostic criteria and return whether the published levator ani box holds (rome_iv_levator_ani).

When to use

When an agent already has the six caller-assigned Rao 2016 Rome IV levator ani syndrome flags and needs whether the published F2a box holds. magent does not perform traction on the puborectalis.

When not to use

• Not a medical device.
• Not a diagnosis. magent does not diagnose levator ani syndrome.
• The caller assigns the six flags. magent does not perform traction on the puborectalis.
• This tool is Rao 2016 Rome IV levator ani syndrome (F2a) only. Not proctalgia fugax. Not unspecified functional anorectal pain (F2b).

Formula

rome_iv_levator_ani iff chronic_or_recurrent_rectal_pain_or_aching and episodes_last_30_minutes_or_longer and tenderness_during_puborectalis_traction and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV levator ani syndrome)

Citation

Title

Anorectal Disorders

Authors

Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A

Source

Gastroenterology. 2016;150(6):1430-1442

DOI

10.1053/j.gastro.2016.02.009

Worked example

Also searched as

• Rome IV levator ani
• Rome IV levator ani syndrome
• Rao 2016 levator ani
• levator ani syndrome Rome IV
• Rome IV F2a
• functional anorectal pain levator
• puborectalis tenderness
• chronic rectal pain Rome IV

Try

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

/api/calc/rome_iv_levator_ani?chronic_or_recurrent_rectal_pain_or_aching=true&episodes_last_30_minutes_or_longer=true&tenderness_during_puborectalis_traction=true&other_causes_of_rectal_pain_excluded=true&fulfilled_last_3_months=true&onset_at_least_6_months=true

Full URL: https://api.magentlab.com/api/calc/rome_iv_levator_ani?chronic_or_recurrent_rectal_pain_or_aching=true&episodes_last_30_minutes_or_longer=true&tenderness_during_puborectalis_traction=true&other_causes_of_rectal_pain_excluded=true&fulfilled_last_3_months=true&onset_at_least_6_months=true

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/rome_iv_levator_ani?chronic_or_recurrent_rectal_pain_or_aching=true&episodes_last_30_minutes_or_longer=true&tenderness_during_puborectalis_traction=true&other_causes_of_rectal_pain_excluded=true&fulfilled_last_3_months=true&onset_at_least_6_months=true"

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/rome_iv_levator_ani 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": [
    {
      "chronic_or_recurrent_rectal_pain_or_aching": "true",
      "episodes_last_30_minutes_or_longer": "true",
      "fulfilled_last_3_months": "true",
      "onset_at_least_6_months": "true",
      "other_causes_of_rectal_pain_excluded": "true",
      "tenderness_during_puborectalis_traction": "true"
    },
    {
      "chronic_or_recurrent_rectal_pain_or_aching": "true",
      "episodes_last_30_minutes_or_longer": "true",
      "fulfilled_last_3_months": "true",
      "onset_at_least_6_months": "true",
      "other_causes_of_rectal_pain_excluded": "true",
      "tenderness_during_puborectalis_traction": "true"
    }
  ]
}

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/rome_iv_levator_ani",
  "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": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A",
        "doi": "10.1053/j.gastro.2016.02.009",
        "id": "rao-2016",
        "pmid": "27144630",
        "source": "Gastroenterology. 2016;150(6):1430-1442",
        "title": "Anorectal Disorders"
      },
      "formula": "rome_iv_levator_ani",
      "formula_expression": "rome_iv_levator_ani iff chronic_or_recurrent_rectal_pain_or_aching and episodes_last_30_minutes_or_longer and tenderness_during_puborectalis_traction and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV levator ani syndrome)",
      "criteria": [
        {
          "factor": "chronic_or_recurrent_rectal_pain_or_aching",
          "met": true
        },
        {
          "factor": "episodes_last_30_minutes_or_longer",
          "met": true
        },
        {
          "factor": "tenderness_during_puborectalis_traction",
          "met": true
        },
        {
          "factor": "other_causes_of_rectal_pain_excluded",
          "met": true
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "met": true
        }
      ],
      "rome_iv_levator_ani": 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": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A",
        "doi": "10.1053/j.gastro.2016.02.009",
        "id": "rao-2016",
        "pmid": "27144630",
        "source": "Gastroenterology. 2016;150(6):1430-1442",
        "title": "Anorectal Disorders"
      },
      "formula": "rome_iv_levator_ani",
      "formula_expression": "rome_iv_levator_ani iff chronic_or_recurrent_rectal_pain_or_aching and episodes_last_30_minutes_or_longer and tenderness_during_puborectalis_traction and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV levator ani syndrome)",
      "criteria": [
        {
          "factor": "chronic_or_recurrent_rectal_pain_or_aching",
          "met": true
        },
        {
          "factor": "episodes_last_30_minutes_or_longer",
          "met": true
        },
        {
          "factor": "tenderness_during_puborectalis_traction",
          "met": true
        },
        {
          "factor": "other_causes_of_rectal_pain_excluded",
          "met": true
        },
        {
          "factor": "fulfilled_last_3_months",
          "met": true
        },
        {
          "factor": "onset_at_least_6_months",
          "met": true
        }
      ],
      "rome_iv_levator_ani": 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": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A",
    "doi": "10.1053/j.gastro.2016.02.009",
    "id": "rao-2016",
    "pmid": "27144630",
    "source": "Gastroenterology. 2016;150(6):1430-1442",
    "title": "Anorectal Disorders"
  },
  "formula": "rome_iv_levator_ani",
  "formula_expression": "rome_iv_levator_ani iff chronic_or_recurrent_rectal_pain_or_aching and episodes_last_30_minutes_or_longer and tenderness_during_puborectalis_traction and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV levator ani syndrome)",
  "criteria": [
    {
      "factor": "chronic_or_recurrent_rectal_pain_or_aching",
      "met": true
    },
    {
      "factor": "episodes_last_30_minutes_or_longer",
      "met": true
    },
    {
      "factor": "tenderness_during_puborectalis_traction",
      "met": true
    },
    {
      "factor": "other_causes_of_rectal_pain_excluded",
      "met": true
    },
    {
      "factor": "fulfilled_last_3_months",
      "met": true
    },
    {
      "factor": "onset_at_least_6_months",
      "met": true
    }
  ],
  "rome_iv_levator_ani": true
}

Client errors (HTTP 400)

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

Related tools

• Rao 2016 Rome IV proctalgia fugax — Apply the Rao 2016 Rome IV proctalgia fugax (F2c) diagnostic criteria and return whether the published proctalgia fugax box holds (rome_iv_proctalgia_fugax).
• Rome IV FC — Apply the Mearin 2016 Rome IV C2 functional constipation criteria and return symptom_count (0-6) and whether the published C2 box holds (rome_iv_fc).

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.