Korabathina 2012 pulmonary artery pulsatility index from PA systolic (mm Hg), PA
Korabathina 2012 pulmonary artery pulsatility index from PA systolic (mm Hg), PA diastolic (mm Hg), and RAP (mm Hg): PAPi = (PAS − PAD) / RAP. Returns papi to two decimals and the paper ROC band (<=0.9 or >0.9) from the unrounded ratio. Equality at 0.9 is <=0.9. RAP 0 is invalid (no RAP=1 substitution). Not a medical device, RV-failure diagnosis, or device threshold.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
259 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/papi
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 259 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"pa_diastolic_mm_hg": 12,
"pa_systolic_mm_hg": 30,
"ra_mm_hg": 6
},
{
"pa_diastolic_mm_hg": 12,
"pa_systolic_mm_hg": 30,
"ra_mm_hg": 6
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"pa_diastolic_mm_hg": {
"description": "Pulmonary artery diastolic pressure in mm Hg (1-80). Must be less than PA systolic.",
"type": "number"
},
"pa_systolic_mm_hg": {
"description": "Pulmonary artery systolic pressure in mm Hg (10-150). Invasive catheter number; this tool does not read waveforms.",
"type": "number"
},
"ra_mm_hg": {
"description": "Right atrial pressure in mm Hg (1-40). RAP 0 is invalid; Korabathina 2012 did not substitute RAP=1.",
"type": "number"
}
},
"required": [
"pa_systolic_mm_hg",
"pa_diastolic_mm_hg",
"ra_mm_hg"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}