{"uid":"cap_pfdSmRmO0ikAl_HX3Clbj","slug":"pizov-1999-blast-lung-injury-severity-calculator-7b28bc1a","name":"Pizov 1999 Blast Lung Injury Severity Calculator","description":"Pizov 1999 blast lung injury severity. Mild, moderate, or severe only when inputs match a published definition: mild PaO2/FiO2 > 200, localized infiltrates, no pneumothorax; moderate 60 to 200, diffuse infiltrates, with or without pneumothorax; severe < 60, bilateral infiltrates, and bronchopleural fistula. Unmatched combinations are rejected. Caller assigns all findings. magent does not read a chest radiograph or assay blood gas. Not a ventilator prescription.","url":"https://api.magentlab.com/api/calc/bli","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":["pf_ratio","infiltrates","pneumothorax","bronchopleural_fistula"],"properties":{"pf_ratio":{"type":"number","description":"PaO2/FiO2 ratio in mm Hg (20-600). Pizov 1999 bands: >200 mild, 60 to 200 moderate, <60 severe. Caller-supplied; magent does not assay blood gas."},"infiltrates":{"type":"string","description":"Lung infiltrate pattern as assigned by the caller: localized (mild), diffuse (moderate; Pizov 1999 diffuse bilateral or unilateral), or bilateral (severe). magent does not read a chest radiograph."},"pneumothorax":{"type":"boolean","description":"true when the caller assigns pneumothorax. Mild requires false; moderate allows true or false; severe does not use this flag (Pizov 1999). magent does not read a chest radiograph."},"bronchopleural_fistula":{"type":"boolean","description":"true when the caller assigns bronchopleural fistula. Required true for severe; mild and moderate require false so the combination matches a Pizov 1999 definition exactly. magent does not read a chest radiograph."}}}},"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_0ePYGOsD8wuUP9cUttBiv","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":"Classifies blast lung injury severity (mild, moderate, or severe) per Pizov 1999 criteria using caller-supplied PaO2/FiO2 ratio, infiltrate pattern, pneumothorax status, and bronchopleural fistula status.","exampleAgentPrompt":"My patient had a blast injury — their PaO2/FiO2 ratio is 140 mm Hg, I'm seeing diffuse infiltrates on imaging, no pneumothorax, and no bronchopleural fistula. Can you run the Pizov 1999 blast lung injury severity classification?","exampleUseCases":[{"title":"Trauma bay blast lung triage","prompt":"A soldier arrived after an IED blast. PaO2/FiO2 is 85, chest X-ray shows bilateral infiltrates, and there's a bronchopleural fistula confirmed — no pneumothorax noted separately. What does Pizov 1999 say about blast lung injury severity?"},{"title":"Moderate BLI verification before documentation","prompt":"I want to confirm this blast lung case qualifies as moderate under Pizov 1999 — the PF ratio is 170, infiltrates are diffuse, pneumothorax is present, and there's no bronchopleural fistula. Does this combination match?"},{"title":"Ruling out mild BLI classification","prompt":"Patient post-explosion with PF ratio of 240 and localized infiltrates on X-ray, no pneumothorax, no bronchopleural fistula — does this meet Pizov 1999 criteria for mild blast lung injury?"}],"resultDescription":"Returns the Pizov 1999 blast lung injury severity grade (mild, moderate, or severe) when the supplied combination of PaO2/FiO2 ratio, infiltrate pattern, pneumothorax, and bronchopleural fistula exactly matches a published definition. Unrecognized or inconsistent combinations are rejected with an error rather than a best-guess grade.","failureModes":["Inputs do not match any Pizov 1999 definition — combination rejected","PaO2/FiO2 ratio outside accepted range (20–600) returns validation error","Missing required query parameters returns 400-class error","Bronchopleural fistula true for mild or moderate grades causes rejection","Pneumothorax true for mild grade causes rejection"],"whenToPreferThis":"Use this endpoint when you need a strict, rule-based Pizov 1999 blast lung injury severity classification grounded in a published clinical definition. It is appropriate only when the caller has already independently determined all clinical findings (PF ratio, infiltrate pattern, pneumothorax, bronchopleural fistula) and wants to map them to a severity grade with exact-match validation. Do not use it to interpret raw imaging or blood gas values — it does not read radiographs or assay blood gas. Prefer this over generic severity tools when documentation or decision support must be traceable to the Pizov 1999 publication.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:57:58.466Z","isFirstParty":false}