{"slug":"api-magentlab-com-api-calc-r-factor-81f984","title":"CIOMS R factor from ALT, ALP, and laboratory ULNs (Bénichou 1990)","host":"api.magentlab.com","method":"POST","resource":"https://api.magentlab.com/api/calc/r_factor","category":"other","description":"CIOMS R factor from ALT, ALP, and laboratory ULNs (Bénichou 1990). R = (ALT/ALT_ULN)/(ALP/ALP_ULN), rounded to 1 decimal, then hepatocellular (R ≥ 5), cholestatic (R ≤ 2), or mixed (2 < R < 5). Deterministic published arithmetic with citation. Not a medical device, not a DILI diagnosis or RUCAM scor","price_listed":0.005,"price_asked":0.007,"state":"overcharges","state_label":"Asked 1.4x its listed price for its own example","checks_7d":1,"answered_7d":1,"latency_ms_median":258,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"items":[{"alp_u_l":100,"alp_uln_u_l":100,"alt_u_l":200,"alt_uln_u_l":40},{"alp_u_l":100,"alp_uln_u_l":100,"alt_u_l":200,"alt_uln_u_l":40}]},"method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"items":{"items":{"properties":{"alp_u_l":{"description":"Alkaline phosphatase in U/L (1-10000). Must be greater than 0.","type":"number"},"alp_uln_u_l":{"description":"Laboratory ALP upper limit of normal in U/L (20-500). Required; must be greater than 0.","type":"number"},"alt_u_l":{"description":"Alanine aminotransferase in U/L (1-10000).","type":"number"},"alt_uln_u_l":{"description":"Laboratory ALT upper limit of normal in U/L (5-200). Required; magent does not assume 40.","type":"number"}},"required":["alt_u_l","alp_u_l","alt_uln_u_l","alp_uln_u_l"],"type":"object"},"maxItems":25,"minItems":1,"type":"array"}},"required":["items"],"type":"object"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"method":{"const":"POST","type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-28","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.007,"price_match":false,"latency_ms":258,"error":null}],"description_full":"CIOMS R factor from ALT, ALP, and laboratory ULNs (Bénichou 1990). R = (ALT/ALT_ULN)/(ALP/ALP_ULN), rounded to 1 decimal, then hepatocellular (R ≥ 5), cholestatic (R ≤ 2), or mixed (2 < R < 5). Deterministic published arithmetic with citation. Not a medical device, not a DILI diagnosis or RUCAM score; magent does not assay enzymes. R is the enzyme pattern only.","last_updated":"2026-09-28T14:04:55.692Z","schemes":["exact"]}