VA TPN 1991 Nutritional Risk Index (NEJM)
VA TPN 1991 Nutritional Risk Index (NEJM): NRI = 1.519*albumin_g_l + 41.7*(current/usual weight). Malnourished if NRI <= 100. Strata: not_malnourished if NRI > 100; borderline_malnourished if 97.5 < NRI <= 100; mildly_malnourished if 83.5 <= NRI <= 97.5; severely_malnourished if NRI < 83.5. Does not cap current/usual at 1. Not a malnutrition diagnosis or TPN order. magent does not assay albumin or weigh the patient. Not GNRI or PNI.
Answeringour last check, 2026-09-28
1 of 1checks answered this week
268 msmedian answer time
$0.005listed price per call
$0.005price 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/nri
| 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 | $0.005 | 268 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"albumin_g_dl": 4,
"albumin_g_l": 40,
"current_weight_kg": 70,
"usual_weight_kg": 70
},
{
"albumin_g_dl": 4,
"albumin_g_l": 40,
"current_weight_kg": 70,
"usual_weight_kg": 70
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"albumin_g_dl": {
"description": "Serum albumin in g/dL (1-6). Converted as g/L = g/dL \u00d7 10. Provide this or albumin_g_l, not both.",
"type": "number"
},
"albumin_g_l": {
"description": "Serum albumin in g/L (10-60). Provide this or albumin_g_dl, not both. VA TPN 1991 NRI uses g/L. magent does not assay albumin.",
"type": "number"
},
"current_weight_kg": {
"description": "Current weight in kg (1-500). Not capped at usual weight. magent does not weigh the patient.",
"type": "number"
},
"usual_weight_kg": {
"description": "Usual weight in kg (1-500). Must be greater than 0. magent does not weigh the patient.",
"type": "number"
}
},
"required": [
"current_weight_kg",
"usual_weight_kg"
],
"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"
}