Neurology · LIVE
RASS (Richmond Agitation-Sedation Scale)
RASS
Return the Sessler 2002 Richmond Agitation-Sedation Scale term and description from a caller-assigned integer -5 to +4.
Markdown: /docs/rass.md · Canonical: https://magentlab.com/docs/rass
Not a medical device. Not a diagnosis, dose, or listing recommendation.
What it computes
Return the Sessler 2002 Richmond Agitation-Sedation Scale term and description from a caller-assigned integer -5 to +4.
When to use
When an agent already has a RASS integer assigned as in Sessler 2002 and needs the published term and description. magent does not observe the patient, administer voice or physical stimulation, or titrate sedation. Not a CAM-ICU feature and not a sedation order.
When not to use
- Not a medical device. magent does not examine the patient, administer voice or physical stimulation, or observe the ICU.
- Not a CAM-ICU administration and not a CAM-ICU feature. Feature 4 of CAM-ICU is assigned separately.
- Not a sedation order or dose. magent does not titrate sedation.
- The caller assigns RASS -5 to +4. magent does not observe the patient.
Formula
RASS integer -5 to +4 as assigned by the caller; Sessler 2002 ten levels (Combative through Unarousable)
Citation
- Authors
- Sessler CN, Gosnell MS, Grap MJ, et al.
- Source
- Am J Respir Crit Care Med. 2002;166(10):1338-1344
Worked example
RASS 0 alert and calm
Given:
rass=0
- rass 0 → Alert and calm
Also searched as
- RASS
- Richmond Agitation-Sedation Scale
- Richmond sedation scale
- Sessler RASS
- ICU agitation scale
- RASS score
- agitation-sedation scale
Try
Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.
Full URL: https://api.magentlab.com/api/calc/rass?rass=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/rass?rass=0"
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
rass |
integer | required | Sessler 2002 RASS integer -5 to +4 as assigned by the caller (+4 Combative; +3 Very agitated; +2 Agitated; +1 Restless; 0 Alert and calm; -1 Drowsy; -2 Light sedation; -3 Moderate sedation; -4 Deep sedation; -5 Unarousable). magent does not observe the patient, administer voice or physical stimulation, or titrate sedation. |
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.
- 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": [
{
"rass": "0"
},
{
"rass": "0"
}
]
}
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/rass",
"items": [
{
"term": "Alert and calm",
"description": "Alert and calm",
"components": [
{
"factor": "rass",
"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": "Sessler CN, Gosnell MS, Grap MJ, et al.",
"doi": "10.1164/rccm.2107138",
"id": "sessler-2002",
"pmid": "12421743",
"source": "Am J Respir Crit Care Med. 2002;166(10):1338-1344",
"title": "The Richmond Agitation-Sedation Scale: validity and reliability in adult intensive care unit patients"
},
"formula": "rass",
"formula_expression": "RASS integer -5 to +4 as assigned by the caller; Sessler 2002 ten levels (Combative through Unarousable)",
"max_score": 4,
"score": 0,
"rass": 0
},
{
"term": "Alert and calm",
"description": "Alert and calm",
"components": [
{
"factor": "rass",
"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": "Sessler CN, Gosnell MS, Grap MJ, et al.",
"doi": "10.1164/rccm.2107138",
"id": "sessler-2002",
"pmid": "12421743",
"source": "Am J Respir Crit Care Med. 2002;166(10):1338-1344",
"title": "The Richmond Agitation-Sedation Scale: validity and reliability in adult intensive care unit patients"
},
"formula": "rass",
"formula_expression": "RASS integer -5 to +4 as assigned by the caller; Sessler 2002 ten levels (Combative through Unarousable)",
"max_score": 4,
"score": 0,
"rass": 0
}
]
}
Response
| Field | Type | Description |
|---|---|---|
formula |
string | rass |
formula_expression |
string | Published RASS rule |
rass |
integer | Caller-assigned RASS integer -5 to +4 |
score |
integer | Same as rass |
max_score |
integer | 4 |
term |
string | Sessler 2002 term for that integer |
description |
string | Sessler 2002 wording for that integer |
components |
array | rass component |
citation |
object | Sessler 2002 |
disclaimer |
string | Not a medical device |
Example JSON
Machine form of the same example. Frozen fixture. Not a live lookup.
{
"term": "Alert and calm",
"description": "Alert and calm",
"components": [
{
"factor": "rass",
"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": "Sessler CN, Gosnell MS, Grap MJ, et al.",
"doi": "10.1164/rccm.2107138",
"id": "sessler-2002",
"pmid": "12421743",
"source": "Am J Respir Crit Care Med. 2002;166(10):1338-1344",
"title": "The Richmond Agitation-Sedation Scale: validity and reliability in adult intensive care unit patients"
},
"formula": "rass",
"formula_expression": "RASS integer -5 to +4 as assigned by the caller; Sessler 2002 ten levels (Combative through Unarousable)",
"max_score": 4,
"score": 0,
"rass": 0
}
Client errors (HTTP 400)
Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.
| HTTP | Code | When |
|---|---|---|
| 400 | invalid_rass |
rass must be an integer from -5 to 4 (Sessler 2002 Richmond Agitation-Sedation Scale). 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
- CAM-ICU — Apply the Ely 2001 CAM-ICU algorithm and return whether delirium is present from four caller-assigned features.
- 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.
- FOUR score — Compute the FOUR score as the sum of caller-assigned eye, motor, brainstem, and respiration integers 0-4.
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.
- 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.