Fick 1870 cardiac output

Fick 1870 cardiac output: CO (L/min) = VO2 (ml/min) / (CaO2 - CvO2) with contents in ml/L (ml/dL x10). Caller supplies the three measured terms. Does not estimate VO2 from BSA or apply Hufner Hb factors. Rejects CaO2 <= CvO2. Not a catheter order, shock diagnosis, or medical device. magent does not sample blood.

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Endpoint

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

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "cao2_ml_dl": 20,
        "cao2_ml_l": 200,
        "cvo2_ml_dl": 15,
        "cvo2_ml_l": 150,
        "vo2_ml_min": 250
      },
      {
        "cao2_ml_dl": 20,
        "cao2_ml_l": 200,
        "cvo2_ml_dl": 15,
        "cvo2_ml_l": 150,
        "vo2_ml_min": 250
      }
    ]
  },
  "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": {
                  "cao2_ml_dl": {
                    "description": "Arterial oxygen content in ml/dL (5-40, magent clamp). Converted as ml/L = ml/dL \u00d7 10. Provide this or cao2_ml_l, not both.",
                    "type": "number"
                  },
                  "cao2_ml_l": {
                    "description": "Arterial oxygen content in ml/L (50-400, magent clamp). Provide this or cao2_ml_dl, not both. magent does not compute content from hemoglobin or H\u00fcfner factors.",
                    "type": "number"
                  },
                  "cvo2_ml_dl": {
                    "description": "Mixed-venous oxygen content in ml/dL (2-35, magent clamp). Converted as ml/L = ml/dL \u00d7 10. Provide this or cvo2_ml_l, not both. Must be less than CaO2 after conversion.",
                    "type": "number"
                  },
                  "cvo2_ml_l": {
                    "description": "Mixed-venous oxygen content in ml/L (20-350, magent clamp). Provide this or cvo2_ml_dl, not both. Must be less than CaO2. magent does not sample mixed-venous blood.",
                    "type": "number"
                  },
                  "vo2_ml_min": {
                    "description": "Measured oxygen consumption in ml/min (50-2000, magent clamp; Fick 1870 does not publish an input band). Caller supplies the measured term. magent does not estimate VO2 from BSA or assume 125 ml/min/m\u00b2.",
                    "type": "number"
                  }
                },
                "required": [
                  "vo2_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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