Emergency · LIVE
National Early Warning Score (NEWS)
NEWS
Compute the RCP 2012 National Early Warning Score from respiratory rate, SpO2, supplemental oxygen, temperature, systolic BP, heart rate, and caller-assigned AVPU.
Markdown: /docs/news.md · Canonical: https://magentlab.com/docs/news
Not a medical device. Not a diagnosis, dose, or listing recommendation.
What it computes
Compute the RCP 2012 National Early Warning Score from respiratory rate, SpO2, supplemental oxygen, temperature, systolic BP, heart rate, and caller-assigned AVPU.
When to use
When an agent needs the published RCP NEWS 2012 Chart 1 total and Chart 2 clinical risk and must not substitute NEWS2 or treat the score as an ICU-admission order.
When not to use
- Not a medical device and not an ICU-admission, HDU, or monitoring order. magent does not examine the patient.
- This is RCP NEWS 2012 Chart 1 only. It is not NEWS2 (2017), Scale 2 oxygen saturations, or new-confusion scoring.
- AVPU is caller-assigned (alert, voice, pain, or unresponsive). Voice, pain, and unresponsive each score 3. magent does not compute GCS here.
- Temperature is in °C as published. magent does not convert Fahrenheit.
- clinical_risk follows RCP 2012 Chart 2 (low / medium / high). A single parameter scoring 3 is a RED score and is medium unless the aggregate is ≥7 (high). It is not an ICU-admission order.
Formula
NEWS = rr_points + spo2_points + oxygen_points + temp_points + sbp_points + hr_points + avpu_points; RCP NEWS 2012 Chart 1; max 20
Citation
- Authors
- Royal College of Physicians
- Source
- London: RCP; 2012. ISBN 978-1-86016-471-2
- DOI
- none
Worked example
Normal vitals, alert, air
Given:
avpu=alertheart_rate_bpm=70respiratory_rate=16spo2_percent=98supplemental_oxygen=falsesystolic_mm_hg=120temperature_c=37.0
- RR 16 → 0; SpO2 98 → 0; oxygen false → 0; temperature 37.0 → 0; SBP 120 → 0; HR 70 → 0; AVPU alert → 0
- Score = 0 (max 20); clinical_risk = low; red_score = false
Respiratory rate 8 (RED score)
Given:
avpu=alertheart_rate_bpm=70respiratory_rate=8spo2_percent=98supplemental_oxygen=falsesystolic_mm_hg=120temperature_c=37.0
- RR 8 → 3; remaining Chart 1 parameters → 0
- Score = 3 (max 20); red_score = true; clinical_risk = medium (RED score, aggregate <7)
Also searched as
- national early warning score
- NEWS
- RCP NEWS
- NEWS 2012
- early warning score
- Chart 1 NEWS
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/news?systolic_mm_hg=120&heart_rate_bpm=70&respiratory_rate=16&temperature_c=37.0&spo2_percent=98&supplemental_oxygen=false&avpu=alert
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/news?systolic_mm_hg=120&heart_rate_bpm=70&respiratory_rate=16&temperature_c=37.0&spo2_percent=98&supplemental_oxygen=false&avpu=alert"
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
systolic_mm_hg |
integer | required | Systolic blood pressure in mm Hg (integer 0-300). RCP NEWS 2012 Chart 1: ≤90 → 3, 91-100 → 2, 101-110 → 1, 111-219 → 0, ≥220 → 3. |
heart_rate_bpm |
integer | required | Heart rate in beats/min (integer 30-220). RCP NEWS 2012 Chart 1: ≤40 → 3, 41-50 → 1, 51-90 → 0, 91-110 → 1, 111-130 → 2, ≥131 → 3. |
respiratory_rate |
integer | required | Respiratory rate in breaths/min (integer 0-80). RCP NEWS 2012 Chart 1: ≤8 → 3, 9-11 → 1, 12-20 → 0, 21-24 → 2, ≥25 → 3. |
temperature_c |
number | required | Temperature in °C (30.0-45.0). RCP NEWS 2012 Chart 1: ≤35.0 → 3, 35.1-36.0 → 1, 36.1-38.0 → 0, 38.1-39.0 → 1, ≥39.1 → 2. magent does not convert Fahrenheit. |
spo2_percent |
number | required | Oxygen saturation percent (50-100). RCP NEWS 2012 Chart 1 Scale 1: ≤91 → 3, 92-93 → 2, 94-95 → 1, ≥96 → 0. Not NEWS2 Scale 2. |
supplemental_oxygen |
boolean | required | Any supplemental oxygen as assigned by the caller (true or false). RCP NEWS 2012 Chart 1: true → 2, false → 0. |
avpu |
string | required · alert, voice, pain, unresponsive | Caller-assigned AVPU (alert, voice, pain, or unresponsive). RCP NEWS 2012 Chart 1: alert → 0; voice, pain, or unresponsive → 3 each. magent does not compute GCS here. |
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": [
{
"avpu": "alert",
"heart_rate_bpm": "70",
"respiratory_rate": "16",
"spo2_percent": "98",
"supplemental_oxygen": "false",
"systolic_mm_hg": "120",
"temperature_c": "37.0"
},
{
"avpu": "alert",
"heart_rate_bpm": "70",
"respiratory_rate": "16",
"spo2_percent": "98",
"supplemental_oxygen": "false",
"systolic_mm_hg": "120",
"temperature_c": "37.0"
}
]
}
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/news",
"items": [
{
"components": [
{
"value": 16,
"factor": "respiratory_rate",
"points": 0,
"present": false
},
{
"value": 98.0,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"value": false,
"factor": "supplemental_oxygen",
"points": 0,
"present": false
},
{
"value": 37.0,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": 120,
"factor": "systolic_mm_hg",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "heart_rate_bpm",
"points": 0,
"present": false
},
{
"value": "alert",
"factor": "avpu",
"points": 0,
"present": false
}
],
"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": "Royal College of Physicians",
"id": "rcp-news-2012",
"source": "London: RCP; 2012. ISBN 978-1-86016-471-2",
"title": "National Early Warning Score (NEWS): Standardising the assessment of acute-illness severity in the NHS"
},
"formula": "news",
"formula_expression": "NEWS = rr_points + spo2_points + oxygen_points + temp_points + sbp_points + hr_points + avpu_points; RCP NEWS 2012 Chart 1; max 20",
"max_score": 20,
"score": 0,
"systolic_mm_hg": 120,
"temperature_c": 37.0,
"heart_rate_bpm": 70,
"avpu": "alert",
"respiratory_rate": 16,
"clinical_risk": "low",
"red_score": false,
"spo2_percent": 98.0,
"supplemental_oxygen": false
},
{
"components": [
{
"value": 16,
"factor": "respiratory_rate",
"points": 0,
"present": false
},
{
"value": 98.0,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"value": false,
"factor": "supplemental_oxygen",
"points": 0,
"present": false
},
{
"value": 37.0,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": 120,
"factor": "systolic_mm_hg",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "heart_rate_bpm",
"points": 0,
"present": false
},
{
"value": "alert",
"factor": "avpu",
"points": 0,
"present": false
}
],
"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": "Royal College of Physicians",
"id": "rcp-news-2012",
"source": "London: RCP; 2012. ISBN 978-1-86016-471-2",
"title": "National Early Warning Score (NEWS): Standardising the assessment of acute-illness severity in the NHS"
},
"formula": "news",
"formula_expression": "NEWS = rr_points + spo2_points + oxygen_points + temp_points + sbp_points + hr_points + avpu_points; RCP NEWS 2012 Chart 1; max 20",
"max_score": 20,
"score": 0,
"systolic_mm_hg": 120,
"temperature_c": 37.0,
"heart_rate_bpm": 70,
"avpu": "alert",
"respiratory_rate": 16,
"clinical_risk": "low",
"red_score": false,
"spo2_percent": 98.0,
"supplemental_oxygen": false
}
]
}
Response
| Field | Type | Description |
|---|---|---|
formula |
string | news |
formula_expression |
string | Exact expression used |
score |
integer | NEWS points 0-20 |
max_score |
integer | Always 20 |
clinical_risk |
string | RCP 2012 Chart 2 clinical risk: low, medium, or high. High (aggregate ≥7) wins over medium. |
red_score |
boolean | true when any single parameter scores 3 (Chart 2 RED score). Medium unless aggregate ≥7 (high). |
systolic_mm_hg |
integer | Systolic BP used, mm Hg |
heart_rate_bpm |
integer | Heart rate used, bpm |
respiratory_rate |
integer | Respiratory rate used, breaths/min |
temperature_c |
number | Temperature used, °C |
spo2_percent |
number | SpO2 percent used |
supplemental_oxygen |
boolean | Supplemental oxygen flag used |
avpu |
string | Caller-assigned AVPU used |
components |
array | Per-vital points |
citation |
object | RCP NEWS 2012 citation |
disclaimer |
string | Not-a-device notice |
Example JSON
Machine form of the same example. Frozen fixture. Not a live lookup.
{
"components": [
{
"value": 16,
"factor": "respiratory_rate",
"points": 0,
"present": false
},
{
"value": 98.0,
"factor": "spo2_percent",
"points": 0,
"present": false
},
{
"value": false,
"factor": "supplemental_oxygen",
"points": 0,
"present": false
},
{
"value": 37.0,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": 120,
"factor": "systolic_mm_hg",
"points": 0,
"present": false
},
{
"value": 70,
"factor": "heart_rate_bpm",
"points": 0,
"present": false
},
{
"value": "alert",
"factor": "avpu",
"points": 0,
"present": false
}
],
"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": "Royal College of Physicians",
"id": "rcp-news-2012",
"source": "London: RCP; 2012. ISBN 978-1-86016-471-2",
"title": "National Early Warning Score (NEWS): Standardising the assessment of acute-illness severity in the NHS"
},
"formula": "news",
"formula_expression": "NEWS = rr_points + spo2_points + oxygen_points + temp_points + sbp_points + hr_points + avpu_points; RCP NEWS 2012 Chart 1; max 20",
"max_score": 20,
"score": 0,
"systolic_mm_hg": 120,
"temperature_c": 37.0,
"heart_rate_bpm": 70,
"avpu": "alert",
"respiratory_rate": 16,
"clinical_risk": "low",
"red_score": false,
"spo2_percent": 98.0,
"supplemental_oxygen": false
}
Client errors (HTTP 400)
Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.
| HTTP | Code | When |
|---|---|---|
| 400 | invalid_rts_systolic |
systolic_mm_hg must be an integer from 0 to 300. Returned before settlement; you are not charged. |
| 400 | invalid_heart_rate |
heart_rate_bpm must be an integer from 30 to 220 Returned before settlement; you are not charged. |
| 400 | invalid_rts_respiratory_rate |
respiratory_rate must be an integer from 0 to 80. Returned before settlement; you are not charged. |
| 400 | invalid_temperature |
temperature_c must be a number from 30.0 to 45.0. Returned before settlement; you are not charged. |
| 400 | invalid_spo2 |
spo2_percent must be a number from 50 to 100. Returned before settlement; you are not charged. |
| 400 | invalid_flag |
boolean clinical flags must be true or false Returned before settlement; you are not charged. |
| 400 | invalid_news_avpu |
avpu must be alert, voice, pain, or unresponsive (RCP NEWS 2012). 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
- MEWS — Compute the Subbe 2001 modified Early Warning Score from systolic BP, heart rate, respiratory rate, temperature, and caller-assigned AVPU.
- qSOFA — Compute the Sepsis-3 qSOFA score from respiratory rate, caller-assigned altered mentation, and systolic blood pressure.
- SIRS — Compute the Bone 1992 ACCP/SCCM SIRS criteria from temperature, heart rate, respiratory rate, and WBC, with optional PaCO2 and band percent.
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.