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Diastolic Shock Index (DSI) Calculator
x402
Diastolic Shock Index (DSI) Calculator 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).
Computes the diastolic shock index (DSI) as heart rate divided by diastolic blood pressure, rounded to two decimal places, per Ospina-Tascón 2020.
Price / call$0.005
Success—
StatusUnknown
How this service works
Diastolic shock index as heart rate in bpm divided by cuff diastolic pressure in mm Hg (Ospina-Tascón 2020). Returns the ratio rounded to two decimals. Not a shock diagnosis, treatment target, or cutoff. Distinct from Allgöwer–Burri HR/SBP shock index. The 2020 cohort had no normal-subject control group, so a DSI cutoff to identify abnormality could be misleading.
Output
Returns the diastolic shock index as a numeric ratio (heart rate in bpm divided by diastolic blood pressure in mm Hg), rounded to two decimal places. This is a raw computed value with no diagnostic interpretation, cutoff, or clinical recommendation attached.
Example use cases
ICU hemodynamic monitoring review
“My ICU patient has a heart rate of 105 bpm and a diastolic BP of 60 mm Hg — what's their diastolic shock index?”
Sepsis triage trending
“Compute the diastolic shock index for a patient presenting to the ED with HR 95 and diastolic pressure of 72 mm Hg.”
Post-resuscitation assessment
“After fluid resuscitation the patient now has a heart rate of 88 bpm and diastolic BP of 55 mm Hg — can you give me the DSI per the Ospina-Tascón method?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/dsiWhen to prefer
Use this endpoint when you need the Ospina-Tascón 2020 diastolic shock index specifically (HR/diastolic BP), as opposed to the classic Allgöwer–Burri shock index (HR/systolic BP). Choose it for hemodynamic ratio computation in research or monitoring pipelines where a quick, reproducible two-decimal ratio is needed without any embedded clinical decision logic.
Side effects
- Missing required query parameters heart_rate_bpm or diastolic_mm_hg returns an error
- Heart rate outside integer range 30–220 bpm may be rejected or yield unreliable output
- Diastolic pressure outside range 20–160 mm Hg may be rejected
- Division by zero if diastolic pressure is 0 (should be blocked by schema minimum)
- Payment failure (x402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/dsi",
"count": 2,
"items": [
{
"dsi": 1,
"formula": "dsi",
"citation": {
"id": "ospina-tascon-2020",
"doi": "10.1186/s13613-020-00658-8",
"pmid": "32296976",
"title": "Diastolic shock index and clinical outcomes in patients with septic shock.",
"source": "Ann Intensive Care. 2020;10(1):41",
"authors": "Ospina-Tascón GA, Teboul JL, Hernandez G, et al."
},
"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.",
"heart_rate_bpm": 80,
"diastolic_mm_hg": 80,
"formula_expression": "dsi = heart_rate_bpm / diastolic_mm_hg"
},
{
"dsi": 1,
"formula": "dsi",
"citation": {
"id": "ospina-tascon-2020",
"doi": "10.1186/s13613-020-00658-8",
"pmid": "32296976",
"title": "Diastolic shock index and clinical outcomes in patients with septic shock.",
"source": "Ann Intensive Care. 2020;10(1):41",
"authors": "Ospina-Tascón GA, Teboul JL, Hernandez G, et al."
},
"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.",
"heart_rate_bpm": 80,
"diastolic_mm_hg": 80,
"formula_expression": "dsi = heart_rate_bpm / diastolic_mm_hg"
}
]
}
}Tags
x402
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