{"uid":"cap_Q4pfMc4SS5S4OJ0wBcZKo","slug":"preset-score-calculator-hilder-2017-ecmo-mortality-risk-8916a9e0","name":"PRESET-Score Calculator (Hilder 2017) – ECMO Mortality Risk","description":"Hilder 2017 PRESET-Score: five Table 4 items (MAP mm Hg, lactate mmol/L, arterial pH, platelets k/uL, hospital days pre-ECMO) summed 0-15. Returns class I (0-5, 26% ICU mortality), II (6-9, 68%), or III (10-15, 93%) from the derivation cohort. Deterministic published arithmetic with citation; not a cannulation order; magent does not assay labs. Not RESP or SAVE.","url":"https://api.magentlab.com/api/calc/preset","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":["mean_arterial_pressure_mm_hg","lactate_mmol_l","arterial_ph","platelets_k_ul","hospital_days_pre_ecmo"],"properties":{"arterial_ph":{"type":"number","description":"Arterial pH (6.5-8.0). Hilder 2017 Table 4: >7.300 → 0, 7.201-7.300 → 1, 7.101-7.200 → 2, ≤7.100 → 3. magent does not assay blood gas."},"lactate_mmol_l":{"type":"number","description":"Lactate in mmol/L (0.0-30.0). Hilder 2017 Table 4: ≤1.50 → 0, 1.51-3.00 → 1, 3.01-6.00 → 2, 6.01-10.00 → 3, >10.00 → 4. magent does not assay labs."},"platelets_k_ul":{"type":"number","description":"Platelet concentration ×1000/µL (1-2000). Hilder 2017 Table 4: >200 → 0, 101-200 → 1, ≤100 → 2. magent does not assay labs."},"hospital_days_pre_ecmo":{"type":"integer","description":"Hospital days before ECMO initiation (integer 0-365). Hilder 2017 Table 4: ≤2 → 0, 3-7 → 1, >7 → 2. Not a cannulation order."},"mean_arterial_pressure_mm_hg":{"type":"number","description":"Mean arterial pressure in mm Hg (20-250). Hilder 2017 Table 4: >100 → 0, 91-100 → 1, 81-90 → 2, 71-80 → 3, ≤70 → 4. magent does not measure blood pressure."}}}},"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_lwfTt6U1IlOGWVeoxSWjR","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 Hilder 2017 PRESET score from five clinical parameters and returns the ICU mortality risk class (I, II, or III) for patients being considered for ECMO.","exampleAgentPrompt":"Calculate the Hilder 2017 PRESET score for a patient with MAP 72 mm Hg, lactate 4.5 mmol/L, arterial pH 7.22, platelets 95 k/µL, and 3 hospital days before ECMO — tell me the score and mortality risk class.","exampleUseCases":[{"title":"Pre-ECMO ICU Mortality Stratification","prompt":"I need the PRESET score for an ICU patient about to go on ECMO: MAP is 68 mm Hg, lactate 3.8 mmol/L, arterial pH 7.18, platelets 110 k/µL, and they've been in hospital for 5 days. What's their risk class?"},{"title":"Comparing Two ECMO Candidates","prompt":"Run the Hilder PRESET calculation for two patients — first: MAP 95, lactate 1.2, pH 7.35, platelets 220, 1 day pre-ECMO; second: MAP 58, lactate 9.0, pH 7.05, platelets 80, 10 days pre-ECMO — and tell me what mortality class each falls into."},{"title":"Clinical Documentation of ECMO Risk Score","prompt":"What's the PRESET score and ICU mortality risk class for a patient with MAP 82 mm Hg, lactate 2.1 mmol/L, arterial pH 7.28, platelets 160 k/µL, and 2 hospital days before ECMO? I need the class and derivation-cohort mortality estimate for the chart."}],"resultDescription":"Returns the total PRESET integer score (0–15) and the corresponding risk class: Class I (score 0–5, ~26% ICU mortality), Class II (score 6–9, ~68% ICU mortality), or Class III (score 10–15, ~93% ICU mortality), based on the Hilder 2017 derivation cohort arithmetic.","failureModes":["Missing required parameters (MAP, lactate, pH, platelets, or hospital days) returns a 400 validation error","Out-of-range values (e.g. pH outside 6.5–8.0, platelets >2000) may be rejected or produce unexpected scoring","Endpoint does not assay labs — input must come from verified clinical measurements","Non-numeric values for numeric fields will cause request failure","Payment failure (x402) if USDC balance is insufficient"],"whenToPreferThis":"Use this endpoint when you need fast, deterministic Hilder 2017 PRESET score arithmetic for ECMO mortality risk classification and have all five required clinical values (MAP, lactate, arterial pH, platelets, hospital days pre-ECMO). Prefer this over RESP or SAVE scores when specifically implementing the PRESET tool. It is not a substitute for clinical judgment or a cannulation order.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:20:31.149Z","isFirstParty":false}