Bova PE score

Bova

Compute the Bova 2014 seven-point index (SBP 90-100 mm Hg, elevated troponin, RV dysfunction, heart rate ≥110) for confirmed acute PE that is not hypotensive, and return the published Table 6 stage band.

LIVE $0.005 USDC GET /api/calc/bova

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

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

What it computes

When to use

When an agent already has confirmed acute symptomatic pulmonary embolism that is not hypotensive and needs the published Bova 2014 point total and stage band, without inventing a thrombolysis decision.

When not to use

Not a medical device. magent does not diagnose pulmonary embolism.
Not a thrombolysis order and not a reperfusion protocol. Stage bands are published Bova 2014 Table 6 groups (0-2 / 3-4 / >4), not treatment instructions.
Only for confirmed acute PE that is not hypotensive. The derivation cohort was normotensive (SBP >90). SBP <90 is rejected; SBP 90-100 inclusive scores 2.
magent does not grade troponin assays. elevated_troponin is the caller-assigned lab cutoff; magent does not interpret ng/mL.
RV dysfunction is caller-assigned from echocardiography or CT. Mortality percents are not returned.

Formula

BOVA = 2*(systolic_mm_hg in 90-100) + 2*elevated_troponin + 2*rv_dysfunction + 1*(heart_rate_bpm>=110); max 7; bands 0-2 / 3-4 / >4 (stages I / II / III)

Citation

Title: Identification of intermediate-risk patients with acute symptomatic pulmonary embolism
Authors: Bova C, Sanchez O, Prandoni P, et al.
Source: Eur Respir J. 2014;44(3):694-703
DOI: 10.1183/09031936.00006114

Worked example

SBP 120, no troponin, no RV dysfunction, HR 80

Given: elevated_troponin=falseheart_rate_bpm=80rv_dysfunction=falsesystolic_mm_hg=120

SBP 120 is not 90-100 → 0; elevated_troponin false → 0; rv_dysfunction false → 0; HR 80 is not ≥110 → 0
Score = 0 (max 7); bova_band 0-2 (stage I)

SBP 95, elevated troponin, RV dysfunction, HR 110

Given: elevated_troponin=trueheart_rate_bpm=110rv_dysfunction=truesystolic_mm_hg=95

SBP 95 is 90-100 → 2; elevated_troponin → 2; rv_dysfunction → 2; HR 110 ≥110 → 1
Score = 7 (max 7); bova_band >4 (stage III)

Also searched as

Bova score
Bova PE score
Bova pulmonary embolism
Bova 2014
intermediate-risk PE
PE complication score
normotensive PE risk

Try

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

/api/calc/bova?systolic_mm_hg=120&elevated_troponin=false&rv_dysfunction=false&heart_rate_bpm=80

Full URL: https://api.magentlab.com/api/calc/bova?systolic_mm_hg=120&elevated_troponin=false&rv_dysfunction=false&heart_rate_bpm=80

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/bova?systolic_mm_hg=120&elevated_troponin=false&rv_dysfunction=false&heart_rate_bpm=80"

Parameters

Name	Type	Required	Description
`systolic_mm_hg`	number	required	Systolic blood pressure in mm Hg (90-250). Scores 2 when 90-100 inclusive (Bova 2014 Table 5). SBP 100 scores; SBP 101 does not. SBP <90 is rejected (normotensive PE cohort).
`elevated_troponin`	boolean	required	Elevated cardiac troponin as assigned by the caller at the local lab cutoff (Bova 2014). true or false. 2 points if true. magent does not grade troponin ng/mL.
`rv_dysfunction`	boolean	required	Right-ventricular dysfunction on echocardiography or CT as assigned by the caller (Bova 2014). true or false. 2 points if true.
`heart_rate_bpm`	integer	required	Heart rate in beats per minute (integer 30-220). Scores 1 when ≥110 (Bova 2014 Table 5). HR 110 scores; HR 109 does not.

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/bova 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": [
    {
      "elevated_troponin": "false",
      "heart_rate_bpm": "80",
      "rv_dysfunction": "false",
      "systolic_mm_hg": "120"
    },
    {
      "elevated_troponin": "false",
      "heart_rate_bpm": "80",
      "rv_dysfunction": "false",
      "systolic_mm_hg": "120"
    }
  ]
}

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/bova",
  "items": [
    {
      "components": [
        {
          "value": 120.0,
          "factor": "systolic_mm_hg_90_100",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_troponin",
          "points": 0,
          "present": false
        },
        {
          "factor": "rv_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "value": 80,
          "factor": "heart_rate_ge_110",
          "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": "Bova C, Sanchez O, Prandoni P, et al.",
        "doi": "10.1183/09031936.00006114",
        "id": "bova-2014",
        "pmid": "24696111",
        "source": "Eur Respir J. 2014;44(3):694-703",
        "title": "Identification of intermediate-risk patients with acute symptomatic pulmonary embolism"
      },
      "formula": "bova",
      "formula_expression": "BOVA = 2*(systolic_mm_hg in 90-100) + 2*elevated_troponin + 2*rv_dysfunction + 1*(heart_rate_bpm>=110); max 7; bands 0-2 / 3-4 / >4 (stages I / II / III)",
      "max_score": 7,
      "score": 0,
      "systolic_mm_hg": 120.0,
      "heart_rate_bpm": 80,
      "bova_band": "0-2",
      "elevated_troponin": false,
      "rv_dysfunction": false
    },
    {
      "components": [
        {
          "value": 120.0,
          "factor": "systolic_mm_hg_90_100",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_troponin",
          "points": 0,
          "present": false
        },
        {
          "factor": "rv_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "value": 80,
          "factor": "heart_rate_ge_110",
          "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": "Bova C, Sanchez O, Prandoni P, et al.",
        "doi": "10.1183/09031936.00006114",
        "id": "bova-2014",
        "pmid": "24696111",
        "source": "Eur Respir J. 2014;44(3):694-703",
        "title": "Identification of intermediate-risk patients with acute symptomatic pulmonary embolism"
      },
      "formula": "bova",
      "formula_expression": "BOVA = 2*(systolic_mm_hg in 90-100) + 2*elevated_troponin + 2*rv_dysfunction + 1*(heart_rate_bpm>=110); max 7; bands 0-2 / 3-4 / >4 (stages I / II / III)",
      "max_score": 7,
      "score": 0,
      "systolic_mm_hg": 120.0,
      "heart_rate_bpm": 80,
      "bova_band": "0-2",
      "elevated_troponin": false,
      "rv_dysfunction": false
    }
  ]
}

Response

Field	Type	Description
`formula`	string	bova
`formula_expression`	string	Exact expression used
`score`	integer	Bova points 0-7
`max_score`	integer	7
`bova_band`	string	Bova 2014 Table 6 stage band: 0-2 (stage I), 3-4 (stage II), or >4 (stage III, scores 5-7). Mortality percents are not returned. Not a thrombolysis order.
`systolic_mm_hg`	number	Systolic BP used, mm Hg
`elevated_troponin`	boolean	Caller-assigned elevated troponin flag used
`rv_dysfunction`	boolean	Caller-assigned RV dysfunction flag used
`heart_rate_bpm`	integer	Heart rate used, bpm
`components`	array	Per-factor points
`citation`	object	Bova 2014 Eur Respir J citation
`disclaimer`	string	Not-a-device notice

Example JSON

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

{
  "components": [
    {
      "value": 120.0,
      "factor": "systolic_mm_hg_90_100",
      "points": 0,
      "present": false
    },
    {
      "factor": "elevated_troponin",
      "points": 0,
      "present": false
    },
    {
      "factor": "rv_dysfunction",
      "points": 0,
      "present": false
    },
    {
      "value": 80,
      "factor": "heart_rate_ge_110",
      "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": "Bova C, Sanchez O, Prandoni P, et al.",
    "doi": "10.1183/09031936.00006114",
    "id": "bova-2014",
    "pmid": "24696111",
    "source": "Eur Respir J. 2014;44(3):694-703",
    "title": "Identification of intermediate-risk patients with acute symptomatic pulmonary embolism"
  },
  "formula": "bova",
  "formula_expression": "BOVA = 2*(systolic_mm_hg in 90-100) + 2*elevated_troponin + 2*rv_dysfunction + 1*(heart_rate_bpm>=110); max 7; bands 0-2 / 3-4 / >4 (stages I / II / III)",
  "max_score": 7,
  "score": 0,
  "systolic_mm_hg": 120.0,
  "heart_rate_bpm": 80,
  "bova_band": "0-2",
  "elevated_troponin": false,
  "rv_dysfunction": false
}

Client errors (HTTP 400)

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

HTTP	Code	When
400	`invalid_bova_systolic`	systolic_mm_hg must be 90-250 (Bova 2014 is for normotensive PE; SBP <90 is not scored). 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_heart_rate`	heart_rate_bpm must be an integer from 30 to 220 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

PESI — Compute the Aujesky 2005 Pulmonary Embolism Severity Index (PESI) from age, sex, comorbidities, vital signs, and altered mental status.
sPESI — Compute the Jiménez 2010 simplified Pulmonary Embolism Severity Index (sPESI) from age and five caller-assigned findings.

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.