Maintenance IV Fluids (Holliday-Segar 4-2-1)

Weight-based maintenance fluid rate (Holliday-Segar).

How to use

Call with the inputs below. Boolean inputs are optional (absent = false). Returns the value, an interpretation, and a breakdown. Deterministic — no network call.

Parameters

Name	Type		Description
weight_kg	number	required	Body weight — unit: kg

Example input

{
  "weight_kg": 25
}

Example output

{
  "calculator": "Maintenance IV Fluids (Holliday-Segar 4-2-1)",
  "category": "General",
  "value": "65 mL/hr",
  "interpretation": "Maintenance fluid rate (4-2-1 rule).",
  "severity": "info",
  "detail": {
    "Hourly rate": "65 mL/hr",
    "Daily volume": "1600 mL/day"
  },
  "references": [
    "Holliday & Segar, 1957"
  ]
}

Call it (MCP tools/call)

{
  "method": "tools/call",
  "params": {
    "name": "calc_maintenance_fluids",
    "arguments": {
      "weight_kg": 25
    }
  }
}

Endpoint: POST https://clinical-mcp.mcharge.in/mcp (Streamable HTTP).

References

Holliday & Segar, 1957