magent

King's College criteria (O'Grady 1989) for poor prognosis in fulminant hepatic failure. Acetaminophen: arterial pH <7.30, or PT >100 s plus creatinine >300 umol/L plus grade III/IV encephalopathy. Non-acetaminophen: PT >100 s, or any 3 of age <11 or >40, unfavorable etiology (non-A non-B or drug reaction), jaundice-to-encephalopathy >7 days, bilirubin >300 umol/L, PT >50 s. PT seconds, not INR. Not a transplant listing order.

Resource: api.magentlab.com/api/calc/kings_college

Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x836Be278f1739fB4308091cD1852F7971Bc19Ee2

Payment methods: eip3009 · Last validation: 2026-09-14 10:59:00.767+00

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        "properties": {
          "pt_sec": {
            "type": "number",
            "description": "Prothrombin time in seconds (8-120) as published in 1989. INR is not accepted. Acetaminophen combo uses PT > 100; non-acetaminophen uses PT > 100 alone or PT > 50 as one of five factors."
          },
          "etiology": {
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          },
          "age_years": {
            "type": "integer",
            "description": "Age in years (0-120). Non-acetaminophen factor met when age < 11 or age > 40 (1989 abstract, not a later <10 restatement). Required even on the acetaminophen tree; not scored there."
          },
          "arterial_ph": {
            "type": "number",
            "description": "Arterial pH (6.80-7.80). Acetaminophen criterion met when pH < 7.30, independent of encephalopathy. Required even on the non-acetaminophen tree; not scored there."
          },
          "bilirubin_umol_l": {
            "type": "number",
            "description": "Serum bilirubin in umol/L (2-684). Non-acetaminophen factor met when > 300. Required even on the acetaminophen tree; not scored there."
          },
          "creatinine_umol_l": {
            "type": "number",
            "description": "Serum creatinine in umol/L (9-1768). Acetaminophen combo criterion met when > 300. Required even on the non-acetaminophen tree; not scored there."
          },
          "encephalopathy_grade": {
            "type": "integer",
            "description": "Hepatic encephalopathy grade 0-4 as assigned by the caller (Conn 1977 / West Haven). Acetaminophen combo uses grade >= 3 (grade III/IV). Required even on the non-acetaminophen tree; not scored there. magent does not examine the patient."
          },
          "unfavorable_etiology": {
            "type": "boolean",
            "description": "Unfavorable etiology as assigned by the caller (paper: non-A non-B hepatitis or drug reaction). true or false. Non-acetaminophen any-3 factor. Required even on the acetaminophen tree; not scored there."
          },
          "jaundice_to_encephalopathy_days": {
            "type": "integer",
            "description": "Days from jaundice to encephalopathy (integer 0-90). Non-acetaminophen factor met when > 7. Required even on the acetaminophen tree; not scored there."
          }
        }
      }
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Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.