{"uid":"cap_PxolBs_gJiSEHZ45efcTe","slug":"mdrd-egfr-calculator-levey-2006-idms-standardized-398fdaf7","name":"MDRD eGFR Calculator (Levey 2006, IDMS-standardized)","description":"IDMS 4-variable MDRD eGFR (Levey 2006) from standardized creatinine, adult age, sex, and caller-assigned Black. magent does not assign race. Deterministic published formula with citation; not CKD-EPI 2021 and not a dosing recommendation.","url":"https://api.magentlab.com/api/calc/mdrd","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":["age","sex","black"],"properties":{"age":{"type":"integer","description":"Age in years (18-120). MDRD is for adults."},"sex":{"enum":["female","male"],"type":"string","description":"Sex used by the published equation. female applies 0.742; male does not."},"black":{"type":"boolean","description":"Caller-assigned Black as used in Levey 2006; magent does not assign race. true applies 1.212."},"creatinine_mg_dl":{"type":"number","description":"Serum creatinine in mg/dL (0.1-20). Provide this or creatinine_umol_l."},"creatinine_umol_l":{"type":"number","description":"Serum creatinine in µmol/L. Converted as mg/dL = µmol/L / 88.42. IDMS-traceable standardized creatinine as in Levey 2006."}}}},"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_EMp1MZ-YhKMHh8jmVhMr2","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 the 4-variable MDRD estimated GFR using the Levey 2006 IDMS-standardized creatinine formula for adult patients.","exampleAgentPrompt":"Calculate the MDRD eGFR for a 58-year-old male patient with a serum creatinine of 1.8 mg/dL; caller has not assigned Black race.","exampleUseCases":[{"title":"CKD staging in clinic workflow","prompt":"My 65-year-old female patient has a standardized serum creatinine of 1.4 mg/dL and is not designated as Black — what does the MDRD formula give for her eGFR?"},{"title":"Medication dosing adjustment check","prompt":"I need the MDRD eGFR for a 72-year-old male, creatinine 2.1 mg/dL, not Black, so I can check whether his renal function warrants a drug dose reduction."},{"title":"Lab result interpretation in EHR","prompt":"A 45-year-old Black female has a creatinine of 110 µmol/L on her labs — can you run the Levey 2006 MDRD equation to get her eGFR?"}],"resultDescription":"Returns the MDRD eGFR value in mL/min/1.73m² calculated from the Levey 2006 4-variable IDMS-standardized formula, applying a 0.742 factor for female sex and 1.212 factor for caller-assigned Black race, along with the published citation. Does not produce a CKD-EPI 2021 result and is not a dosing recommendation.","failureModes":["Age out of range (not 18–120) returns validation error","Creatinine out of range (not 0.1–20 mg/dL equivalent) returns validation error","Neither creatinine_mg_dl nor creatinine_umol_l provided returns missing parameter error","Invalid sex enum value returns bad request","Payment not satisfied returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you specifically need the Levey 2006 4-variable MDRD eGFR with IDMS-standardized creatinine for adult patients, particularly in legacy clinical workflows or research contexts that call for MDRD rather than CKD-EPI 2021. Prefer this over CKD-EPI when institutional protocols or historical comparisons require the MDRD formula explicitly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:00:01.804Z","isFirstParty":false}