Corrected QT (QTc)

QTc via Bazett and Fridericia.

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
qt_ms	number	required	Measured QT interval — unit: ms
heart_rate	number	required	Heart rate — unit: bpm

Example input

{
  "qt_ms": 440,
  "heart_rate": 75
}

Example output

{
  "calculator": "Corrected QT (QTc)",
  "category": "Cardiovascular",
  "value": "492 ms (Bazett)",
  "interpretation": "Prolonged",
  "severity": "high",
  "detail": {
    "Bazett": "492 ms",
    "Fridericia": "474 ms"
  },
  "references": [
    "Bazett 1920; Fridericia 1920"
  ]
}

Call it (MCP tools/call)

{
  "method": "tools/call",
  "params": {
    "name": "calc_qtc",
    "arguments": {
      "qt_ms": 440,
      "heart_rate": 75
    }
  }
}

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

References

Bazett 1920; Fridericia 1920