{"uid":"cap_vDH2lMbqNCObd1_P3mxL4","slug":"rai-1975-cll-staging-calculator-d08f6219","name":"Rai 1975 CLL Staging Calculator","description":"Rai 1975 original CLL staging (stages 0-IV). Returns rai_stage 0-4 from caller-assigned lymphadenopathy, hepatosplenomegaly (spleen or liver or both), anemia (Hb <11 g/dL), and thrombocytopenia (platelets <100,000/mm3). Highest applicable: thrombocytopenia 4, else anemia 3, else organomegaly 2, else nodes 1, else 0 (lymphocytosis only). Not a CLL diagnosis; magent does not examine the patient or read a CBC. Not modified Rai. Not Binet (Binet C is Hb <10).","url":"https://api.magentlab.com/api/calc/rai","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":["lymphadenopathy","hepatosplenomegaly","anemia_hb_lt_11","thrombocytopenia_plt_lt_100"],"properties":{"anemia_hb_lt_11":{"type":"boolean","description":"Anemia as assigned by the caller using the Rai 1975 cutoff hemoglobin <11 g/dL (hematocrit <33% is the same clinical call). true or false. magent does not read a CBC."},"lymphadenopathy":{"type":"boolean","description":"Lymphadenopathy as assigned by the caller (Rai 1975 stage I when this is the highest finding). true or false. magent does not examine the patient."},"hepatosplenomegaly":{"type":"boolean","description":"Enlarged spleen or liver or both as assigned by the caller (Rai 1975 stage II). true or false. magent does not examine the patient."},"thrombocytopenia_plt_lt_100":{"type":"boolean","description":"Thrombocytopenia as assigned by the caller using the Rai 1975 cutoff platelets <100,000/mm3 (<100×10^9/L). true or false. magent does not read a CBC."}}}},"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_cWxZYAXS6SOJCQ7ETFOzA","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 original Rai 1975 CLL stage (0–IV) from four caller-supplied Boolean clinical findings: lymphadenopathy, hepatosplenomegaly, anemia, and thrombocytopenia.","exampleAgentPrompt":"What is the original Rai 1975 CLL stage for a patient who has lymphadenopathy and hepatosplenomegaly, hemoglobin of 10.2 g/dL (so anemia is true), but platelets of 150,000/mm3 (no thrombocytopenia)?","exampleUseCases":[{"title":"CLL staging at hematology consult","prompt":"I'm seeing a CLL patient with palpable lymph nodes, no organomegaly, hemoglobin 10.5 so no anemia by Rai criteria, and platelets 130,000 so no thrombocytopenia — what is their original Rai 1975 stage?"},{"title":"Triage severity for CLL treatment decision","prompt":"This CLL patient has no lymphadenopathy, no hepatosplenomegaly, hemoglobin is 9.8 g/dL which is below 11, and platelets are 80,000/mm3 which is below 100,000 — can you calculate the Rai stage using the 1975 original criteria?"},{"title":"Documenting baseline Rai stage at diagnosis","prompt":"For a newly diagnosed CLL patient with lymphadenopathy, enlarged spleen, normal hemoglobin of 13 g/dL, and normal platelets of 200,000, what is the original Rai stage — not modified Rai, not Binet?"}],"resultDescription":"Returns a single integer rai_stage from 0 to 4. Stage 4 if thrombocytopenia (platelets <100,000/mm3) is true; else stage 3 if anemia (Hb <11 g/dL) is true; else stage 2 if hepatosplenomegaly is true; else stage 1 if lymphadenopathy is true; else stage 0 (lymphocytosis only). The endpoint applies the original Rai 1975 hierarchy strictly, highest applicable finding wins.","failureModes":["Missing any of the four required Boolean query parameters returns a validation error","Non-boolean values for parameters cause schema rejection","Payment failure (x402) if USDC balance insufficient","Network timeout on api.magentlab.com"],"whenToPreferThis":"Use this endpoint when you need the original 1975 Rai staging system specifically (stages 0–IV), not the modified Rai (low/intermediate/high risk) and not the Binet system (which uses Hb <10 g/dL cutoff). Ideal when clinical findings are already determined by the clinician and you only need the algorithmic staging logic applied.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:53:32.043Z","isFirstParty":false}