{"uid":"cap_bqB3YHDhl_8xXgr0-Qrgj","slug":"kdigo-2012-aki-staging-calculator-30b5cbe7","name":"KDIGO 2012 AKI Staging Calculator","description":"KDIGO 2012 Table 2 AKI stage 0-3 from baseline and current creatinine in mg/dL and a caller-assigned urine-output category. Stage is the worse of the two limbs; RRT or a caller pediatric eGFR <35 flag is stage 3. magent does not assay creatinine, measure urine, collect weight, or compute eGFR (no MDRD). Not a medical device, not a diagnosis, not AKIN 2007, and not RIFLE.","url":"https://api.magentlab.com/api/calc/kdigo_aki","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["baseline_creatinine_mg_dl","current_creatinine_mg_dl","urine_output","rrt","pediatric_egfr_lt_35"],"properties":{"rrt":{"type":"boolean","description":"Renal replacement therapy initiated as assigned by the caller. true maps to KDIGO stage 3 irrespective of creatinine or urine stage (KDIGO 2012 Table 2). true or false."},"urine_output":{"enum":["none","oliguria_6_to_12h","oliguria_ge_12h","oliguria_24h_or_anuria_12h"],"type":"string","description":"Caller-assigned KDIGO urine-output category (KDIGO 2012 Table 2): none (no oliguria or anuria criterion); oliguria_6_to_12h (<0.5 mL/kg/h for 6–12 hours); oliguria_ge_12h (<0.5 mL/kg/h for ≥12 hours); oliguria_24h_or_anuria_12h (<0.3 mL/kg/h for ≥24 hours or anuria for ≥12 hours). Case-insensitive. magent does not collect weight or measure urine."},"pediatric_egfr_lt_35":{"type":"boolean","description":"Caller-assigned KDIGO Table 2 pediatric limb: patients <18 years with a decrease in eGFR to <35 mL/min/1.73 m². true maps to stage 3 irrespective of creatinine or urine stage. magent does not compute eGFR and does not use MDRD. true or false."},"current_creatinine_mg_dl":{"type":"number","description":"Current serum creatinine in mg/dL (0.1-20). Staging uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."},"baseline_creatinine_mg_dl":{"type":"number","description":"Baseline serum creatinine in mg/dL (0.1-20). Staging uses the unrounded value. µmol/L is not accepted on this tool. magent does not assay creatinine."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Za5mp10jwQZs9fK13tUzd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes KDIGO 2012 AKI stage (0–3) from baseline and current serum creatinine (mg/dL) plus a caller-assigned urine-output category, RRT flag, and pediatric eGFR flag.","exampleAgentPrompt":"Stage this patient's acute kidney injury using KDIGO 2012 criteria: baseline creatinine 1.0 mg/dL, current creatinine 2.2 mg/dL, urine output category is oliguria for 6 to 12 hours, not on RRT, and no pediatric eGFR flag.","exampleUseCases":[{"title":"ICU AKI triage documentation","prompt":"My ICU patient has a baseline creatinine of 0.9 mg/dL and it's risen to 1.8 mg/dL. Urine output has been low for 6 to 12 hours (oliguria_6_to_12h), they're not on RRT, and the pediatric eGFR flag is false. What KDIGO AKI stage are they?"},{"title":"Pediatric AKI with eGFR drop","prompt":"I have a 15-year-old patient with baseline creatinine 0.6 mg/dL and current creatinine 0.8 mg/dL, no oliguria, not on RRT, but their eGFR dropped below 35 mL/min/1.73 m². What KDIGO stage does that give?"},{"title":"RRT-initiated patient staging","prompt":"Patient just started renal replacement therapy. Baseline creatinine was 1.2 mg/dL and current is 3.5 mg/dL; urine output category is oliguria_24h_or_anuria_12h, RRT is true, and pediatric eGFR flag is false. What's the KDIGO AKI stage?"}],"resultDescription":"Returns the overall KDIGO 2012 AKI stage (0, 1, 2, or 3) as the worse of the creatinine limb and the urine-output limb, with stage 3 automatically assigned if RRT is true or pediatric eGFR <35 is true, regardless of the other parameters.","failureModes":["Missing required query parameters returns a validation error","Creatinine values outside the 0.1–20 mg/dL range may be rejected or produce undefined results","µmol/L values passed instead of mg/dL will produce incorrect staging silently — unit conversion must be done by the caller","Invalid urine_output enum string causes a parameter error","Incorrect caller-assigned flags (RRT, pediatric_egfr_lt_35) lead to miscategorization — the endpoint trusts caller input"],"whenToPreferThis":"Choose this endpoint when you need automated, rule-based KDIGO 2012 Table 2 AKI staging from creatinine values already in mg/dL and a caller-determined urine-output category. It is not AKIN 2007, not RIFLE, and does not measure urine output, compute eGFR, or convert units — the caller must supply those values. Prefer this over manual calculation when building clinical documentation, alerting pipelines, or research workflows that require reproducible KDIGO staging at scale.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:06:35.626Z","isFirstParty":false}