{"uid":"cap_HDhMxdzgH00jsKbUMrw7m","slug":"magent-cci-corrected-count-increment-calculator-aa73ead7","name":"Magent CCI (Corrected Count Increment) Calculator","description":"Corrected count increment (CCI) after platelet transfusion: (post - pre platelet count per uL) * BSA_m2 / (dose in 10^11). Davis 1999 Transfusion. Returns CCI and the uncorrected increment only. Caller supplies BSA; magent does not compute Nadler BSA from height/weight, assay platelets, emit a 5000 or 7500 refractoriness cutoff, or order a transfusion. Davis 1999 cautions CCI/PPR can distort comparisons of platelet products.","url":"https://api.magentlab.com/api/calc/cci","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":["pre_plt_per_ul","post_plt_per_ul","bsa_m2","platelets_transfused_e11"],"properties":{"bsa_m2":{"type":"number","description":"Caller-supplied body-surface area in m² (0.1-4.0). Required. magent does not measure BSA and does not compute Nadler BSA from height and weight."},"pre_plt_per_ul":{"type":"number","description":"Pretransfusion platelet count per µL (0-2000000). Same numeric value as ×10^9/L for the increment. magent does not assay platelets."},"post_plt_per_ul":{"type":"number","description":"Posttransfusion platelet count per µL (0-2000000). Must be at least pre_plt_per_ul. magent does not assay platelets."},"platelets_transfused_e11":{"type":"number","description":"Platelet dose already in units of 10^11 (0.1-50). Example: 3 means 3×10^11 platelets. Must be positive. magent does not assay the unit."}}}},"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_yqdK-IeGNMXGwqpRotYZG","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 corrected count increment (CCI) and uncorrected platelet increment after a platelet transfusion using the Davis 1999 formula","exampleAgentPrompt":"Calculate the corrected count increment for a platelet transfusion where the pre-transfusion count was 8,000 per µL, the post-transfusion count was 42,000 per µL, the patient's BSA is 1.85 m², and they received a dose of 3×10^11 platelets.","exampleUseCases":[{"title":"Post-transfusion CCI audit in oncology","prompt":"A leukemia patient had a pre-transfusion platelet count of 10,000 per µL and a post count of 38,000 per µL. Their BSA is 1.72 m² and we gave 3×10^11 platelets. What is their CCI?"},{"title":"Assessing potential platelet refractoriness","prompt":"We suspect platelet refractoriness in our ICU patient. Pre-count was 12,000 per µL, post-count was 18,000 per µL, BSA is 2.1 m², and the dose was 3.5×10^11 platelets. Can you compute their CCI and uncorrected increment?"},{"title":"Research quality-control CCI batch review","prompt":"For our transfusion audit, compute the CCI for a transfusion where pre-platelet count was 5,000 per µL, post was 55,000 per µL, BSA was 1.62 m², and the platelet dose was 2.8×10^11."}],"resultDescription":"Returns the corrected count increment (CCI) computed as (post − pre platelet count per µL) × BSA_m² / (dose in 10^11), and the uncorrected platelet increment (post − pre). Does not return BSA, a refractoriness flag, a 5,000 or 7,500 cutoff judgment, or any transfusion order recommendation.","failureModes":["post_plt_per_ul less than pre_plt_per_ul — validation error, negative increment not allowed","platelets_transfused_e11 is zero or negative — division by zero or validation error","bsa_m2 out of range (below 0.1 or above 4.0) — validation error","platelet counts exceed 2,000,000 per µL — out-of-range validation error","Missing required query parameters — 400 bad request","Payment not provided or insufficient — 402 payment required"],"whenToPreferThis":"Choose this endpoint when you need a fast, formulaic CCI computation per Davis 1999 and already have BSA, pre/post platelet counts, and platelet dose available. It is ideal for automating transfusion audits, populating clinical dashboards, or embedding CCI logic in an agent workflow without building the formula yourself. Do not use it if you need BSA computed from height/weight (Nadler), platelet assaying, refractoriness thresholds applied automatically, or PPR (percent platelet recovery) — those are out of scope.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:00:16.116Z","isFirstParty":false}