ToolAssay

Kim 2008 NEJM MELD-Na from creatinine, bilirubin, INR, sodium, and dialysis

Kim 2008 NEJM MELD-Na from creatinine, bilirubin, INR, sodium, and dialysis. Then-current UNOS MELD: dialysis sets creatinine 4.0 else clamp 1.0-4.0; bilirubin and INR floor 1.0. Sodium bound 125-140. MELDNa = MELD - Na - 0.025*MELD*(140-Na) + 140. Not OPTN 2016 MELD-Na (Na 125-137 only if MELD>11). Not Kim 2021 MELD 3.0. Not a transplant listing or allocation order.

Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
282 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/kim_meldna

CategoryEverything else
Provider hostapi.magentlab.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days0 from 0 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-09-28 valid payment request 402$0.007 282 ms

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "bilirubin_mg_dl": 1.1,
        "bilirubin_umol_l": 19,
        "creatinine_mg_dl": 1.2,
        "creatinine_umol_l": 106,
        "dialysis": false,
        "inr": 1.1,
        "sodium_mmol_l": 125
      },
      {
        "bilirubin_mg_dl": 1.1,
        "bilirubin_umol_l": 19,
        "creatinine_mg_dl": 1.2,
        "creatinine_umol_l": 106,
        "dialysis": false,
        "inr": 1.1,
        "sodium_mmol_l": 125
      }
    ]
  },
  "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": {
                  "bilirubin_mg_dl": {
                    "description": "Total bilirubin in mg/dL (0.1-40). Provide this or bilirubin_umol_l. Floored at 1.0.",
                    "type": "number"
                  },
                  "bilirubin_umol_l": {
                    "description": "Total bilirubin in \u00b5mol/L. Converted as mg/dL = \u00b5mol/L / 17.1.",
                    "type": "number"
                  },
                  "creatinine_mg_dl": {
                    "description": "Serum creatinine in mg/dL (0.1-20). Provide this or creatinine_umol_l. Dialysis sets used creatinine to 4.0; otherwise clamp 1.0-4.0 (then-current UNOS, Kim 2008).",
                    "type": "number"
                  },
                  "creatinine_umol_l": {
                    "description": "Serum creatinine in \u00b5mol/L. Converted as mg/dL = \u00b5mol/L / 88.42.",
                    "type": "number"
                  },
                  "dialysis": {
                    "description": "Dialysis twice in the last week. true sets creatinine used to 4.0.",
                    "type": "boolean"
                  },
                  "inr": {
                    "description": "INR (0.8-10). Floored at 1.0.",
                    "type": "number"
                  },
                  "sodium_mmol_l": {
                    "description": "Serum sodium in mmol/L (110-160). Kim 2008 bounds the sodium term at 125-140. Applied at every MELD (not only MELD>11).",
                    "type": "number"
                  }
                },
                "required": [
                  "inr",
                  "sodium_mmol_l",
                  "dialysis"
                ],
                "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"
}

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