{"uid":"cap_HIYV1y7HvImbH_bh9-Mj1","slug":"miller-1983-esr-upper-limit-calculator-50fe2ab5","name":"Miller 1983 ESR Upper Limit Calculator","description":"Adult maximum normal erythrocyte sedimentation rate (mm/h, 98th percentile approximation) from age and sex (Miller 1983). Men: age/2. Women: (age + 10)/2. Deterministic published arithmetic with citation. Returns the threshold only; not a diagnosis, not a measured ESR, and not Wener 2000 CRP. magent does not measure ESR.","url":"https://api.magentlab.com/api/calc/miller_esr","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"],"properties":{"age":{"type":"integer","description":"Age in years (integer 20-90). Miller 1983 adult range."},"sex":{"enum":["female","male"],"type":"string","description":"Sex for the published rule (female or male)."}}}},"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_3m2T7_tN4Vf06ZVPlpPQM","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":"Calculates the adult maximum normal erythrocyte sedimentation rate (ESR) threshold in mm/h using the Miller 1983 age- and sex-based formula","exampleAgentPrompt":"Using the Miller 1983 formula, what is the maximum normal ESR for a 68-year-old female patient?","exampleUseCases":[{"title":"Flag elevated ESR in clinical report","prompt":"I'm reviewing a lab result for a 72-year-old male with an ESR of 42 mm/h — what's the Miller 1983 upper limit of normal for his age and sex so I can tell if that's elevated?"},{"title":"Age-adjusted ESR threshold for elderly woman","prompt":"What's the maximum normal ESR for an 80-year-old female according to the Miller 1983 formula?"},{"title":"Confirm ESR cutoff for middle-aged male","prompt":"My patient is a 50-year-old man. What ESR value should I use as the upper threshold of normal based on age and sex using the Miller 1983 rule?"}],"resultDescription":"Returns the calculated upper limit of normal ESR in mm/h (98th percentile approximation) for the given age and sex, using the published Miller 1983 formulas: men = age/2, women = (age+10)/2. This is a reference threshold value only — not a diagnosis, not a measured ESR value, and not based on CRP or any other marker.","failureModes":["Age outside the 20-90 adult range may return an error or out-of-range response","Invalid or missing 'sex' enum value (must be 'male' or 'female') will cause a validation error","Non-integer age values will be rejected by the schema","Missing required query parameters (age or sex) will result in a request error","Payment failure (x402) will block the response"],"whenToPreferThis":"Use this endpoint when you need the Miller 1983 age- and sex-adjusted ESR upper limit of normal for an adult patient (ages 20–90). It is the right choice when you need a quick, deterministic, evidence-based reference threshold rather than a diagnosis or a measured ESR result. Prefer this over general medical knowledge lookups when you need a citable, formula-based value with a known provenance (Miller 1983 publication). Do not use this to measure ESR, interpret CRP, or handle pediatric patients.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:07:04.936Z","isFirstParty":false}