{"uid":"cap_5x8IXYZcQFYAC5e7he_Qv","slug":"cam-icu-delirium-screener-ely-2001-055f7d77","name":"CAM-ICU Delirium Screener (Ely 2001)","description":"CAM-ICU (Ely 2001). Delirium is present iff Feature 1 (acute onset or fluctuating course) and Feature 2 (inattention) both hold, and Feature 3 (disorganized thinking) or Feature 4 (altered level of consciousness) also holds. The caller assigns each feature as already determined. magent does not observe the patient, administer RASS, or run the attention screening exam. Not a diagnosis and not a medical device.","url":"https://api.magentlab.com/api/calc/cam_icu","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":["acute_onset_or_fluctuation","inattention","disorganized_thinking","altered_level_of_consciousness"],"properties":{"inattention":{"type":"boolean","description":"Feature 2: inattention. true or false as assigned by the caller. magent does not run the attention screening exam."},"disorganized_thinking":{"type":"boolean","description":"Feature 3: disorganized thinking. true or false as assigned by the caller. magent does not administer the thinking questions."},"acute_onset_or_fluctuation":{"type":"boolean","description":"Feature 1: acute onset of mental status change or fluctuating course. true or false as assigned by the caller. magent does not observe the patient or judge fluctuation."},"altered_level_of_consciousness":{"type":"boolean","description":"Feature 4: altered level of consciousness. true or false as assigned by the caller. magent does not administer RASS."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"path":"/api/calc/cam_icu","count":2,"items":[{"formula":"cam_icu","citation":{"id":"ely-2001","doi":"10.1001/jama.286.21.2703","pmid":"11730446","title":"Delirium in mechanically ventilated patients: validity and reliability of the confusion assessment method for the intensive care unit (CAM-ICU)","source":"JAMA. 2001;286(21):2703-2710","authors":"Ely EW, Inouye SK, Bernard GR, et al."},"criteria":[{"met":false,"factor":"acute_onset_or_fluctuation"},{"met":false,"factor":"inattention"},{"met":false,"factor":"disorganized_thinking"},{"met":false,"factor":"altered_level_of_consciousness"}],"disclaimer":"Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.","delirium_present":false,"formula_expression":"delirium present iff Feature 1 AND Feature 2 AND (Feature 3 OR Feature 4)"},{"formula":"cam_icu","citation":{"id":"ely-2001","doi":"10.1001/jama.286.21.2703","pmid":"11730446","title":"Delirium in mechanically ventilated patients: validity and reliability of the confusion assessment method for the intensive care unit (CAM-ICU)","source":"JAMA. 2001;286(21):2703-2710","authors":"Ely EW, Inouye SK, Bernard GR, et al."},"criteria":[{"met":false,"factor":"acute_onset_or_fluctuation"},{"met":false,"factor":"inattention"},{"met":false,"factor":"disorganized_thinking"},{"met":false,"factor":"altered_level_of_consciousness"}],"disclaimer":"Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.","delirium_present":false,"formula_expression":"delirium present iff Feature 1 AND Feature 2 AND (Feature 3 OR Feature 4)"}]}},"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_tH7TuImpI1fNRJX50yLAe","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":"Applies the CAM-ICU algorithm to four caller-supplied feature flags and returns whether delirium is present or absent.","exampleAgentPrompt":"My ICU patient has an acute onset of mental status change (Feature 1 = true), shows inattention (Feature 2 = true), no disorganized thinking (Feature 3 = false), and a normal level of consciousness (Feature 4 = false) — run the CAM-ICU algorithm and tell me if delirium is present.","exampleUseCases":[{"title":"ICU nurse delirium flag workflow","prompt":"I've assessed my ventilated patient: they had a fluctuating mental status today (Feature 1 true), failed the attention screening (Feature 2 true), answered the thinking questions correctly (Feature 3 false), and is on a RASS of 0 (Feature 4 false) — is CAM-ICU positive?"},{"title":"Clinical documentation assistant","prompt":"For the chart note, the patient has acute onset mental status change and inattention, plus disorganized thinking, but no altered level of consciousness — compute the CAM-ICU result so I can document it."},{"title":"Automated delirium surveillance agent","prompt":"I've collected the four CAM-ICU features for bed 12: acute onset true, inattention true, disorganized thinking true, altered consciousness false — what does the CAM-ICU algorithm say?"}],"resultDescription":"A Boolean or categorical determination of whether the CAM-ICU criteria are met (delirium present or absent), derived from the logical combination: (Feature 1 AND Feature 2) AND (Feature 3 OR Feature 4).","failureModes":["Missing required feature flags returns a validation error","Invalid boolean values for any feature parameter cause a bad request","Network timeout if the endpoint is temporarily unavailable"],"whenToPreferThis":"Use this endpoint when you have already assessed and assigned the four CAM-ICU features independently (e.g., via clinical observation, RASS administration, and attention exam) and need to apply the Ely 2001 logical algorithm to produce a positive/negative result. This endpoint does not perform the clinical assessment itself — it only applies the decision logic. Prefer it for automating documentation pipelines, audit trails, or clinical decision-support agents where the feature flags are already determined.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:09:49.512Z","isFirstParty":false}