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GOLD COPD Spirometric Grade Calculator (2017)
x402
GOLD COPD Spirometric Grade Calculator (2017) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Calculates the GOLD 2017 spirometric grade (1–4 or not_obstructed) for COPD from post-bronchodilator FEV1/FVC ratio and FEV1 % predicted.
Price / call$0.005
Success—
StatusUnknown
How this service works
GOLD 2017 spirometric grade (Vogelmeier executive summary). Post-bronchodilator FEV1/FVC < 0.70 defines obstruction; then GOLD 1 if FEV1 % predicted >= 80, GOLD 2 if 50 to <80, GOLD 3 if 30 to <50, GOLD 4 if <30. Ratio >= 0.70 returns not_obstructed even when FEV1 is low. Not GOLD ABE (no mMRC, CAT, or exacerbations). magent does not perform spirometry. Not a medical device or a diagnosis.
Output
Returns the GOLD 2017 spirometric grade: 'not_obstructed' when FEV1/FVC ≥ 0.70, or GOLD 1 through 4 when FEV1/FVC < 0.70 (GOLD 1: FEV1 ≥ 80%, GOLD 2: 50–79%, GOLD 3: 30–49%, GOLD 4: < 30%). Does not incorporate mMRC, CAT scores, or exacerbation history (not the GOLD ABE framework).
Example use cases
Staging COPD severity in an EHR workflow
“I have a patient with post-bronchodilator FEV1/FVC of 0.58 and FEV1 % predicted of 42 — what GOLD spirometric grade does that give them?”
Ruling out obstruction from borderline spirometry
“A patient's post-bronchodilator FEV1/FVC came back at 0.72 and FEV1 is 65% predicted — does GOLD 2017 classify them as obstructed?”
Automating GOLD grading in a population health report
“For a cohort analysis, calculate the GOLD grade for a subject with FEV1/FVC ratio 0.48 and FEV1 % predicted of 28.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/gold_copdWhen to prefer
Use this endpoint when you need a fast, deterministic GOLD 2017 spirometric grade (obstruction severity, GOLD 1–4) from post-bronchodilator spirometry values and do not need the full ABE (exacerbation/symptom) assessment. Prefer this over general-purpose LLM reasoning for reproducibility and auditability in clinical documentation or population health pipelines.
Side effects
- FEV1/FVC outside allowed range (0.20–1.00) returns validation error
- FEV1 % predicted outside allowed range (10–150) returns validation error
- Missing required query parameters returns error
- Payment failure (x402) prevents response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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