Smoking Pack-Years

Cumulative cigarette exposure.

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
packs_per_day	number	required	Packs per day (1 pack = 20 cigarettes) — unit: packs/day
years_smoked	number	required	Years smoked — unit: years

Example input

{
  "packs_per_day": 1,
  "years_smoked": 30
}

Example output

{
  "calculator": "Smoking Pack-Years",
  "category": "General",
  "value": "30 pack-years",
  "interpretation": "≥20 pack-years — meets a common threshold for lung-cancer screening eligibility (with age criteria).",
  "severity": "moderate"
}

Call it (MCP tools/call)

{
  "method": "tools/call",
  "params": {
    "name": "calc_pack_years",
    "arguments": {
      "packs_per_day": 1,
      "years_smoked": 30
    }
  }
}

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