Dong 2019 EVendo score for screening high-risk esophageal varices
Dong 2019 EVendo score for screening high-risk esophageal varices. A = (8.5 * INR) + (AST/35); B = (platelets/150) + (BUN/20) + (hemoglobin/15); score = A/B + 1 if ascites. US conventional units. Round to 2 decimals. Published cutoff strictly below 3.90. magent clamps: INR 0.8-4.0, AST 5-4000 U/L, platelets 10-800 k/uL, BUN 2-150 mg/dL, hemoglobin 4-20 g/dL. Not a varices diagnosis or endoscopy order. magent does not assay labs. Not a medical device.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
277 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/evendo
| 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 | $0.007 | 277 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"ascites": false,
"ast_u_l": 35,
"bun_mg_dl": 20,
"hemoglobin_g_dl": 15,
"inr": 1,
"platelets_k_ul": 150
},
{
"ascites": false,
"ast_u_l": 35,
"bun_mg_dl": 20,
"hemoglobin_g_dl": 15,
"inr": 1,
"platelets_k_ul": 150
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"ascites": {
"description": "Clinically evident ascites as assigned by the caller (Dong 2019). true adds 1 to the score; false adds 0. true or false. magent does not examine the abdomen.",
"type": "boolean"
},
"ast_u_l": {
"description": "Aspartate aminotransferase in U/L (5-4000, magent clamp). US conventional units as in Dong 2019. Rejects non-positive AST. magent does not assay AST.",
"type": "number"
},
"bun_mg_dl": {
"description": "Blood urea nitrogen in mg/dL (2-150, magent clamp). US conventional units as in Dong 2019. Rejects non-positive BUN. magent does not assay BUN.",
"type": "number"
},
"hemoglobin_g_dl": {
"description": "Hemoglobin in g/dL (4-20, magent clamp). US conventional units as in Dong 2019. Rejects non-positive hemoglobin. magent does not assay hemoglobin.",
"type": "number"
},
"inr": {
"description": "International normalized ratio (0.8-4.0, magent clamp). Dong 2019 uses INR. Rejects non-positive INR. magent does not assay coagulation.",
"type": "number"
},
"platelets_k_ul": {
"description": "Platelet count in 10^3/\u00b5L (10-800, magent clamp), the same unit as 10^9/L. US conventional units as in Dong 2019. Rejects non-positive platelets. magent does not assay platelets.",
"type": "number"
}
},
"required": [
"inr",
"ast_u_l",
"platelets_k_ul",
"bun_mg_dl",
"hemoglobin_g_dl",
"ascites"
],
"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"
}