Mehran 2004 contrast-induced nephropathy risk score after PCI (eGFR model B)

Mehran 2004 contrast-induced nephropathy risk score after PCI (eGFR model B). Points from hypotension, IABP, CHF, age >75, anemia, diabetes, contrast volume (1 per 100 mL), and caller eGFR. Returns integer score (max 41), risk group (low ≤5 through very_high ≥16), and development-set CIN percent. Not a CKD diagnosis; magent does not measure contrast or compute eGFR.

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Endpoint

POST https://api.magentlab.com/api/calc/mehran

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "age": 60,
        "anemia": false,
        "chf": false,
        "contrast_ml": 100,
        "diabetes": false,
        "egfr_ml_min": 90,
        "hypotension": false,
        "iabp": false
      },
      {
        "age": 60,
        "anemia": false,
        "chf": false,
        "contrast_ml": 100,
        "diabetes": false,
        "egfr_ml_min": 90,
        "hypotension": false,
        "iabp": false
      }
    ]
  },
  "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": {
                  "age": {
                    "description": "Age in years (18-120). Age >75 scores 4 (Mehran 2004 Table 3 model B). Age 75 scores 0.",
                    "type": "integer"
                  },
                  "anemia": {
                    "description": "Anemia as assigned by the caller using WHO hematocrit <39% (men) or <36% (women) (Mehran 2004). true scores 3. Flag only; do not send a hematocrit number. magent does not assay hematocrit.",
                    "type": "boolean"
                  },
                  "chf": {
                    "description": "CHF as assigned by the caller: NYHA III/IV and/or pulmonary edema (Mehran 2004). true scores 5. true or false. magent does not examine the patient.",
                    "type": "boolean"
                  },
                  "contrast_ml": {
                    "description": "Contrast volume in mL (integer 10-1000). Scores 1 per 100 mL: floor(contrast_ml/100) (Mehran 2004). 100 scores 1; 199 scores 1; 200 scores 2. magent does not measure contrast.",
                    "type": "integer"
                  },
                  "diabetes": {
                    "description": "Diabetes mellitus as assigned by the caller (Mehran 2004 Table 3). true scores 3. true or false.",
                    "type": "boolean"
                  },
                  "egfr_ml_min": {
                    "description": "Caller-assigned eGFR in mL/min/1.73m\u00b2 (5-150). Mehran 2004 Table 3 model B: \u226560 scores 0; 40 to <60 scores 2; 20 to <40 scores 4; <20 scores 6. magent does not compute eGFR and does not use race-based MDRD. Do not send serum creatinine; creatinine >1.5 is the alternate model A and would double-count.",
                    "type": "number"
                  },
                  "hypotension": {
                    "description": "Hypotension as assigned by the caller: SBP <80 mm Hg for \u22651 h requiring inotropes or IABP within 24 h (Mehran 2004). true scores 5. true or false. magent does not measure blood pressure.",
                    "type": "boolean"
                  },
                  "iabp": {
                    "description": "Intra-aortic balloon pump use as assigned by the caller (Mehran 2004 Table 3). true scores 5. Independent of the hypotension flag. true or false.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "age",
                  "hypotension",
                  "iabp",
                  "chf",
                  "anemia",
                  "diabetes",
                  "contrast_ml",
                  "egfr_ml_min"
                ],
                "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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