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ADHERE CART In-Hospital Mortality Risk Stratifier
x402
ADHERE CART In-Hospital Mortality Risk Stratifier is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Applies the Fonarow 2005 ADHERE CART bedside decision tree to stratify acute heart failure patients into five in-hospital mortality risk categories using admission BUN, systolic BP, and serum creatinine.
Price / call$0.005
Success—
StatusUnknown
How this service works
Fonarow 2005 ADHERE CART bedside tree from admission BUN, systolic BP, and serum creatinine. high: BUN>=43, SBP<115, Cr>=2.75; intermediate_1: BUN>=43, SBP<115, Cr<2.75; intermediate_2: BUN>=43, SBP>=115; intermediate_3: BUN<43, SBP<115; low: BUN<43, SBP>=115. Creatinine consulted only when BUN>=43 and SBP<115. CART tree only, not the logistic model or GWTG-HF. Not a heart-failure diagnosis or treatment/ICU order.
Output
Returns one of five CART risk categories — high, intermediate_1, intermediate_2, intermediate_3, or low — based on the Fonarow 2005 ADHERE decision tree logic. The branch selected is determined by: (1) BUN ≥ 43, (2) SBP < 115, and (3) creatinine ≥ 2.75 (consulted only when BUN ≥ 43 AND SBP < 115). This is a risk stratification result, not a diagnosis or treatment order.
Example use cases
ED triage for acute HF admission
“I have a patient presenting to the ED with acute decompensated heart failure — admission BUN is 48, systolic BP is 108, and creatinine is 2.1 mg/dL. Can you run the ADHERE CART tree and tell me their in-hospital mortality risk category?”
ICU vs floor admission decision support
“For a heart failure patient with BUN 30 mg/dL and systolic BP of 120 mmHg, what does the Fonarow ADHERE CART decision tree say about their mortality risk? I want to know if they're low-risk before deciding on floor admission.”
Retrospective quality review of HF cohort
“We're reviewing a heart failure patient from last week: admission BUN was 60, systolic BP was 90, and serum creatinine was 3.5 mg/dL. What ADHERE CART risk category would they have been assigned at admission?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/adhereWhen to prefer
Choose this endpoint when you need to apply the specific Fonarow 2005 ADHERE CART bedside decision tree (not the logistic regression model or GWTG-HF score) to stratify in-hospital mortality risk for acute decompensated heart failure using only admission BUN, systolic BP, and optionally creatinine. Prefer this over manual CART tree lookup when admission labs are already digitized and you need rapid, reproducible risk classification at scale.
Side effects
- Missing required bun_mg_dl or systolic_bp_mm_hg → validation error
- Both creatinine_mg_dl and creatinine_umol_l provided → conflict error
- BUN or creatinine outside allowed range (BUN 1-200, Cr 0.1-20 mg/dL) → range error
- Non-integer systolic_bp_mm_hg → type error
- Creatinine not provided when BUN ≥ 43 and SBP < 115 (creatinine is required in that branch) → incomplete input
- Payment not included or insufficient → HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/adhere",
"count": 2,
"items": [
{
"formula": "adhere",
"citation": {
"id": "fonarow-2005",
"doi": "10.1001/jama.293.5.572",
"pmid": "15687312",
"title": "Risk stratification for in-hospital mortality in acutely decompensated heart failure: classification and regression tree analysis",
"source": "JAMA. 2005;293(5):572-580",
"authors": "Fonarow GC, Adams KF Jr, Abraham WT, Yancy CW, Boscardin WJ; ADHERE Scientific Advisory Committee, Study Group, and Investigators"
},
"bun_mg_dl": 20,
"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.",
"adhere_risk": "low",
"creatinine_mg_dl": 1,
"systolic_bp_mm_hg": 140,
"formula_expression": "high: bun_mg_dl >= 43 AND systolic_bp_mm_hg < 115 AND creatinine_mg_dl >= 2.75; intermediate_1: bun_mg_dl >= 43 AND systolic_bp_mm_hg < 115 AND creatinine_mg_dl < 2.75; intermediate_2: bun_mg_dl >= 43 AND systolic_bp_mm_hg >= 115; intermediate_3: bun_mg_dl < 43 AND systolic_bp_mm_hg < 115; low: bun_mg_dl < 43 AND systolic_bp_mm_hg >= 115 (Fonarow 2005 CART)"
},
{
"formula": "adhere",
"citation": {
"id": "fonarow-2005",
"doi": "10.1001/jama.293.5.572",
"pmid": "15687312",
"title": "Risk stratification for in-hospital mortality in acutely decompensated heart failure: classification and regression tree analysis",
"source": "JAMA. 2005;293(5):572-580",
"authors": "Fonarow GC, Adams KF Jr, Abraham WT, Yancy CW, Boscardin WJ; ADHERE Scientific Advisory Committee, Study Group, and Investigators"
},
"bun_mg_dl": 20,
"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.",
"adhere_risk": "low",
"creatinine_mg_dl": 1,
"systolic_bp_mm_hg": 140,
"formula_expression": "high: bun_mg_dl >= 43 AND systolic_bp_mm_hg < 115 AND creatinine_mg_dl >= 2.75; intermediate_1: bun_mg_dl >= 43 AND systolic_bp_mm_hg < 115 AND creatinine_mg_dl < 2.75; intermediate_2: bun_mg_dl >= 43 AND systolic_bp_mm_hg >= 115; intermediate_3: bun_mg_dl < 43 AND systolic_bp_mm_hg < 115; low: bun_mg_dl < 43 AND systolic_bp_mm_hg >= 115 (Fonarow 2005 CART)"
}
]
}
}Tags
x402
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