Gomez 2016 Step-by-Step for febrile infants 90 days and younger (derivation Mint

Gomez 2016 Step-by-Step for febrile infants 90 days and younger (derivation Mintegi 2014). High if ill-appearing, age 21 days or younger, leukocyturia, or PCT >=0.5 ng/mL; else intermediate if CRP >20 mg/L or ANC >10000/uL; else low. Returns risk, low_risk, high_risk, and intermediate_risk. magent does not examine the infant or assay UA, PCT, CRP, or ANC. Not Rochester, Boston, Philadelphia, or PECARN febrile. Not a medical device and not a discharge, admission, LP, or antibiotic order.

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Endpoint

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

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "age_days": 47,
        "anc_per_ul": 4000,
        "crp_mg_l": 5,
        "leukocyturia": false,
        "pct_ng_ml": 0.2,
        "well_appearing": true
      },
      {
        "age_days": 47,
        "anc_per_ul": 4000,
        "crp_mg_l": 5,
        "leukocyturia": false,
        "pct_ng_ml": 0.2,
        "well_appearing": true
      }
    ]
  },
  "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_days": {
                    "description": "Chronological age in days (integer 0-90). Gomez 2016 studied febrile infants 90 days and younger. Age 21 days or younger is high-risk. Age 22 can be low-risk when remaining low-risk criteria hold.",
                    "type": "integer"
                  },
                  "anc_per_ul": {
                    "description": "Absolute neutrophil count in cells/\u00b5L. Range 0-100000. Intermediate (when not already high) if greater than 10000/\u00b5L (10000 is not intermediate). magent does not assay ANC.",
                    "type": "number"
                  },
                  "crp_mg_l": {
                    "description": "C-reactive protein in mg/L. Range 0-500. Intermediate (when not already high) if greater than 20 mg/L (20 is not intermediate). magent does not assay CRP.",
                    "type": "number"
                  },
                  "leukocyturia": {
                    "description": "Caller-assigned leukocyturia (urine dipstick / UA leukocytes) as used in Gomez 2016. true means leukocytes are present and is high-risk. true or false. magent does not assay UA.",
                    "type": "boolean"
                  },
                  "pct_ng_ml": {
                    "description": "Serum procalcitonin in ng/mL. Range 0.01-100. High-risk if 0.5 ng/mL or greater (0.5 is high). Low-risk requires less than 0.5. magent does not assay procalcitonin.",
                    "type": "number"
                  },
                  "well_appearing": {
                    "description": "Caller-assigned well-appearing as used in Gomez 2016. true or false. Ill-appearing (well_appearing=false) is high-risk. magent does not examine the infant.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "age_days",
                  "well_appearing",
                  "leukocyturia",
                  "pct_ng_ml",
                  "crp_mg_l",
                  "anc_per_ul"
                ],
                "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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