{"uid":"cap_xWDb5TjT_peGQ7GhKhFoI","slug":"alt-70-cellulitis-vs-pseudocellulitis-score-raff-2017-e367cd0e","name":"ALT-70 Cellulitis vs Pseudocellulitis Score (Raff 2017)","description":"Raff 2017 ALT-70 for lower-extremity cellulitis vs pseudocellulitis. Caller-assigned unilateral involvement (3), WBC ≥10,000/µL (1), heart rate ≥90 (1), age ≥70 (2); max 7. Bands 0-2 (pseudocellulitis-leaning), 3-4 (indeterminate), and ≥5 (cellulitis-leaning). Deterministic published score with citation; not a medical device, not a cellulitis diagnosis, and not an antibiotic order. magent does not examine the limb.","url":"https://api.magentlab.com/api/calc/alt_70","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":["age","unilateral","heart_rate_bpm"],"properties":{"age":{"type":"integer","description":"Age in years (18-120). Raff 2017: scores 2 when ≥70. Age 69 does not score."},"wbc_ul":{"type":"number","description":"WBC in cells/µL (same as cells/mm^3). Provide wbc_k_ul or wbc_ul. Range 10-500000. ≥10,000/µL scores 1."},"wbc_k_ul":{"type":"number","description":"WBC in 10^3/µL (same as k/µL or 10^9/L). Provide wbc_k_ul or wbc_ul. Range 0.01-500. ≥10 (10,000/µL) scores 1. 9.9 does not score."},"unilateral":{"type":"boolean","description":"Unilateral (asymmetric) lower-extremity involvement (Raff 2017). true or false as assigned by the caller. 3 points if true. magent does not examine the limb."},"heart_rate_bpm":{"type":"integer","description":"Heart rate in beats per minute (integer 30-220). Raff 2017: scores 1 when ≥90. Heart rate 89 does not score."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"path":"/api/calc/alt_70","count":2,"items":[{"band":"0-2","score":0,"formula":"alt_70","citation":{"id":"raff-2017","doi":"10.1016/j.jaad.2016.12.044","pmid":"28215446","title":"A predictive model for diagnosis of lower extremity cellulitis: A cross-sectional study.","source":"J Am Acad Dermatol. 2017;76(4):618-625.e2","authors":"Raff AB, Weng QY, Cohen JM, et al."},"age_years":40,"max_score":7,"components":[{"factor":"unilateral","points":0,"present":false},{"value":8000,"factor":"leukocytosis","points":0,"present":false},{"value":80,"factor":"tachycardia","points":0,"present":false},{"value":40,"factor":"age_ge_70","points":0,"present":false}],"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.","unilateral":false,"wbc_per_ul":8000,"heart_rate_bpm":80,"formula_expression":"ALT-70 = (unilateral → 3) + (WBC >= 10000/µL → 1) + (heart_rate_bpm >= 90 → 1) + (age >= 70 → 2); max 7; bands 0-2 / 3-4 / >=5"},{"band":"0-2","score":0,"formula":"alt_70","citation":{"id":"raff-2017","doi":"10.1016/j.jaad.2016.12.044","pmid":"28215446","title":"A predictive model for diagnosis of lower extremity cellulitis: A cross-sectional study.","source":"J Am Acad Dermatol. 2017;76(4):618-625.e2","authors":"Raff AB, Weng QY, Cohen JM, et al."},"age_years":40,"max_score":7,"components":[{"factor":"unilateral","points":0,"present":false},{"value":8000,"factor":"leukocytosis","points":0,"present":false},{"value":80,"factor":"tachycardia","points":0,"present":false},{"value":40,"factor":"age_ge_70","points":0,"present":false}],"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.","unilateral":false,"wbc_per_ul":8000,"heart_rate_bpm":80,"formula_expression":"ALT-70 = (unilateral → 3) + (WBC >= 10000/µL → 1) + (heart_rate_bpm >= 90 → 1) + (age >= 70 → 2); max 7; bands 0-2 / 3-4 / >=5"}]}},"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_yW46UijcMXdkF4AIAw2N2","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 Raff 2017 ALT-70 clinical decision score to differentiate lower-extremity cellulitis from pseudocellulitis based on age, laterality, WBC, and heart rate.","exampleAgentPrompt":"Run the ALT-70 cellulitis score for a 74-year-old patient with unilateral leg redness, a WBC of 12,500/µL, and a heart rate of 94 bpm — I need to know if this looks more like cellulitis or a pseudocellulitis mimic.","exampleUseCases":[{"title":"ED triage for leg redness","prompt":"I have a 68-year-old in the ED with bilateral lower leg redness, WBC of 9,800/µL, and heart rate of 82 bpm — can you run the ALT-70 score so I can see if this leans toward pseudocellulitis?"},{"title":"Hospitalist admission decision support","prompt":"My patient is 71 years old, the involvement is unilateral, WBC came back at 14,200/µL, and heart rate is 96. Calculate the Raff 2017 ALT-70 score and tell me which risk band they fall into."},{"title":"Dermatology consult pre-screening","prompt":"Before I see this consult, run the ALT-70 for me: patient is 65, bilateral involvement, WBC 11,000/µL, heart rate 88 bpm — is the score in the indeterminate or pseudocellulitis range?"}],"resultDescription":"Returns the integer ALT-70 total score (0–7) and the corresponding risk band: 0–2 pseudocellulitis-leaning, 3–4 indeterminate, ≥5 cellulitis-leaning. Not a diagnosis or antibiotic order.","failureModes":["Missing required parameters (age, unilateral, heart_rate_bpm) returns a 400-level error","Age outside 18–120 or heart rate outside 30–220 may be rejected as out-of-range","Providing neither wbc_ul nor wbc_k_ul omits the WBC criterion from scoring (score may be incomplete)","WBC values outside allowed ranges (10–500,000 µL or 0.01–500 k/µL) may be rejected","Payment failure (x402) returns a 402 status requiring USDC payment before the call proceeds"],"whenToPreferThis":"Use this endpoint when you need a deterministic, citation-backed arithmetic score (Raff 2017) to stratify a lower-extremity skin finding as cellulitis vs pseudocellulitis. Prefer it over general LLM reasoning for reproducibility and auditability. Do not use it as a substitute for clinical examination or as a diagnosis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:11:29.745Z","isFirstParty":false}