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Glasgow Alcoholic Hepatitis Score (GAHS) Calculator
x402
Glasgow Alcoholic Hepatitis Score (GAHS) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Computes the Forrest 2005 Glasgow Alcoholic Hepatitis Score (range 5–12) from age, WBC, urea/BUN, PT ratio, and bilirubin, flagging scores ≥9 as indicating steroid benefit.
Price / call$0.005
Success—
StatusUnknown
How this service works
Forrest 2005 Glasgow alcoholic hepatitis score from age, WBC, urea, PT ratio, and bilirubin (range 5-12) with the published ≥9 band. Deterministic published arithmetic with citation; not a steroid order.
Output
Returns the total Glasgow Alcoholic Hepatitis Score (integer, range 5–12) based on the Forrest 2005 formula, along with individual component scores for age, WBC, urea, PT ratio, and bilirubin, and a flag indicating whether the score meets the published ≥9 threshold associated with potential steroid benefit.
Example use cases
ICU alcoholic hepatitis steroid triage
“My patient is 61 years old, WBC is 22,000 cells/µL, BUN is 28 mg/dL, PT ratio is 2.3, and bilirubin is 310 µmol/L — can you compute the Glasgow Alcoholic Hepatitis Score and let me know if they're above the ≥9 cutoff?”
Outpatient hepatitis severity assessment
“Calculate the GAHS for a 47-year-old patient with WBC 13,500 cells/µL, urea 4.1 mmol/L, prothrombin time ratio 1.3, and total bilirubin 110 µmol/L — I need to know their score and whether it's below the 9 threshold.”
Retrospective chart review scoring
“I'm reviewing a case: patient was 55 at admission, WBC 16,200 per µL, BUN 19 mg/dL, PT ratio 1.6, bilirubin 240 µmol/L — please compute the Glasgow alcoholic hepatitis score for my notes.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/gahsWhen to prefer
Use this endpoint when you need a deterministic, citation-backed implementation of the Forrest 2005 Glasgow Alcoholic Hepatitis Score specifically — it handles unit conversions (BUN↔urea, bilirubin mg/dL↔µmol/L, WBC cells/µL↔K/µL) automatically and returns structured sub-scores. Prefer over general LLM reasoning when auditability and arithmetic exactness matter for clinical documentation.
Side effects
- Missing required fields (age or pt_ratio) returns a validation error
- Out-of-range values (e.g. age <18 or pt_ratio >10) may return an error or clamp
- Providing both urea_mmol_l and bun_mg_dl simultaneously may cause a conflict error
- Providing both wbc_ul and wbc_k_ul simultaneously may cause a conflict error
- Network or payment authorization failure returns HTTP 402 or 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/gahs",
"count": 2,
"items": [
{
"score": 5,
"formula": "gahs",
"citation": {
"id": "forrest-2005",
"doi": "10.1136/gut.2004.050781",
"title": "Analysis of factors predictive of mortality in alcoholic hepatitis and derivation and validation of the Glasgow alcoholic hepatitis score",
"source": "Gut. 2005;54(8):1174-1179",
"authors": "Forrest EH, Evans CD, Stewart S, et al."
},
"pt_ratio": 1.2,
"wbc_k_ul": 8,
"age_years": 40,
"gahs_band": "lt_9",
"max_score": 12,
"min_score": 5,
"components": [
{
"value": 40,
"factor": "age",
"points": 1,
"present": false
},
{
"value": 8,
"factor": "wbc",
"points": 1,
"present": false
},
{
"value": 4,
"factor": "urea",
"points": 1,
"present": false
},
{
"value": 1.2,
"factor": "pt_ratio",
"points": 1,
"present": false
},
{
"value": 80,
"factor": "bilirubin",
"points": 1,
"present": false
}
],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"urea_mmol_l": 4,
"bilirubin_umol_l": 80,
"formula_expression": "GAHS = age_points + wbc_points + urea_points + pt_ratio_points + bilirubin_points; range 5-12"
},
{
"score": 5,
"formula": "gahs",
"citation": {
"id": "forrest-2005",
"doi": "10.1136/gut.2004.050781",
"title": "Analysis of factors predictive of mortality in alcoholic hepatitis and derivation and validation of the Glasgow alcoholic hepatitis score",
"source": "Gut. 2005;54(8):1174-1179",
"authors": "Forrest EH, Evans CD, Stewart S, et al."
},
"pt_ratio": 1.2,
"wbc_k_ul": 8,
"age_years": 40,
"gahs_band": "lt_9",
"max_score": 12,
"min_score": 5,
"components": [
{
"value": 40,
"factor": "age",
"points": 1,
"present": false
},
{
"value": 8,
"factor": "wbc",
"points": 1,
"present": false
},
{
"value": 4,
"factor": "urea",
"points": 1,
"present": false
},
{
"value": 1.2,
"factor": "pt_ratio",
"points": 1,
"present": false
},
{
"value": 80,
"factor": "bilirubin",
"points": 1,
"present": false
}
],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"urea_mmol_l": 4,
"bilirubin_umol_l": 80,
"formula_expression": "GAHS = age_points + wbc_points + urea_points + pt_ratio_points + bilirubin_points; range 5-12"
}
]
}
}Tags
x402
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