{"uid":"cap_VdunjAyZoA5GIAfw5lsYA","slug":"smart-cop-score-for-community-acquired-pneumonia-charles-2008-52971e6a","name":"SMART-COP Score for Community-Acquired Pneumonia (Charles 2008)","description":"Charles 2008 SMART-COP for intensive respiratory or vasopressor support in community-acquired pneumonia: SBP <90 (2), multilobar CXR (1), albumin <3.5 g/dL (1), age-adjusted RR (1), HR >=125 (1), new confusion (1), age-adjusted low oxygen (2), arterial pH <7.35 (2; omitted pH scores 0). Max 11. IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high. Not a site-of-care protocol. Albumin g/dL or g/L. Exactly one of PaO2, SpO2, or P/F.","url":"https://api.magentlab.com/api/calc/smart_cop","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","systolic_mm_hg","multilobar_cxr","respiratory_rate","heart_rate_bpm","confusion"],"properties":{"age":{"type":"integer","description":"Age in years (18-120). Age ≤50 uses RR ≥25, PaO2 <70, SpO2 ≤93%, P/F <333. Age >50 uses RR ≥30, PaO2 <60, SpO2 ≤90%, P/F <250."},"pf_ratio":{"type":"number","description":"PaO2/FiO2 ratio (20-800). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <333 scores 2. Age >50: <250 scores 2."},"confusion":{"type":"boolean","description":"New or acute confusion as assigned by the caller (Charles 2008 C). true or false. 1 point if true. magent does not assess mental status."},"pao2_mm_hg":{"type":"number","description":"Arterial PaO2 in mm Hg (20-700). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: <70 scores 2. Age >50: <60 scores 2."},"albumin_g_l":{"type":"number","description":"Albumin in g/L (10-60). Converted as g/dL = g/L / 10. Provide this or albumin_g_dl, not both. Scores 1 when <35 g/L."},"arterial_ph":{"type":"number","description":"Arterial pH (6.80-7.80). Optional. Scores 2 when <7.35; 7.35 does not score. Omitted pH scores 0 (Charles 2008 missing-pH assumption)."},"albumin_g_dl":{"type":"number","description":"Albumin in g/dL (1-6). Provide this or albumin_g_l, not both. Scores 1 when <3.5; 3.5 does not score (Charles 2008 A)."},"spo2_percent":{"type":"number","description":"Oxygen saturation percent (50-100). Provide exactly one of pao2_mm_hg, spo2_percent, or pf_ratio. Age ≤50: ≤93 scores 2. Age >50: ≤90 scores 2."},"heart_rate_bpm":{"type":"integer","description":"Heart rate in beats per minute (integer 30-220). Scores 1 when ≥125; 124 does not score (Charles 2008 T)."},"multilobar_cxr":{"type":"boolean","description":"Multilobar involvement on chest radiograph as assigned by the caller (Charles 2008 M). true or false. 1 point if true. magent does not interpret radiographs."},"systolic_mm_hg":{"type":"number","description":"Systolic blood pressure in mm Hg (50-250). Scores 2 when <90; 90 does not score (Charles 2008 S)."},"respiratory_rate":{"type":"integer","description":"Respiratory rate in breaths/min (integer 4-80). Age ≤50: ≥25 scores 1 (24 does not). Age >50: ≥30 scores 1 (29 does not). Charles 2008 R."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"path":"/api/calc/smart_cop","count":2,"items":[{"score":0,"formula":"smart_cop","citation":{"id":"charles-2008","doi":"10.1086/589754","pmid":"18558884","title":"SMART-COP: a tool for predicting the need for intensive respiratory or vasopressor support in community-acquired pneumonia","source":"Clin Infect Dis. 2008;47(3):375-384","authors":"Charles PGP, Wolfe R, Whitby M, et al."},"age_years":40,"irvs_risk":"low","max_score":11,"components":[{"value":120,"factor":"systolic_lt_90","points":0,"present":false},{"factor":"multilobar_cxr","points":0,"present":false},{"value":4,"factor":"albumin_lt_3_5","points":0,"present":false},{"value":16,"factor":"respiratory_rate","points":0,"present":false},{"value":80,"factor":"heart_rate_ge_125","points":0,"present":false},{"factor":"confusion","points":0,"present":false},{"input":"spo2_percent","value":98,"factor":"oxygen_low","points":0,"present":false},{"value":7.4,"factor":"arterial_ph_lt_7_35","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.","arterial_ph":7.4,"albumin_g_dl":4,"spo2_percent":98,"heart_rate_bpm":80,"systolic_mm_hg":120,"respiratory_rate":16,"formula_expression":"SMART-COP (Charles 2008) = SBP<90 (2) + multilobar_cxr (1) + albumin<3.5 g/dL (1) + age-adjusted RR (1; age<=50 RR>=25, age>50 RR>=30) + HR>=125 (1) + confusion (1) + age-adjusted low oxygen (2; age<=50 PaO2<70 or SpO2<=93 or P/F<333; age>50 PaO2<60 or SpO2<=90 or P/F<250) + arterial_pH<7.35 (2; omitted pH scores 0); max 11; IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high"},{"score":0,"formula":"smart_cop","citation":{"id":"charles-2008","doi":"10.1086/589754","pmid":"18558884","title":"SMART-COP: a tool for predicting the need for intensive respiratory or vasopressor support in community-acquired pneumonia","source":"Clin Infect Dis. 2008;47(3):375-384","authors":"Charles PGP, Wolfe R, Whitby M, et al."},"age_years":40,"irvs_risk":"low","max_score":11,"components":[{"value":120,"factor":"systolic_lt_90","points":0,"present":false},{"factor":"multilobar_cxr","points":0,"present":false},{"value":4,"factor":"albumin_lt_3_5","points":0,"present":false},{"value":16,"factor":"respiratory_rate","points":0,"present":false},{"value":80,"factor":"heart_rate_ge_125","points":0,"present":false},{"factor":"confusion","points":0,"present":false},{"input":"spo2_percent","value":98,"factor":"oxygen_low","points":0,"present":false},{"value":7.4,"factor":"arterial_ph_lt_7_35","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.","arterial_ph":7.4,"albumin_g_dl":4,"spo2_percent":98,"heart_rate_bpm":80,"systolic_mm_hg":120,"respiratory_rate":16,"formula_expression":"SMART-COP (Charles 2008) = SBP<90 (2) + multilobar_cxr (1) + albumin<3.5 g/dL (1) + age-adjusted RR (1; age<=50 RR>=25, age>50 RR>=30) + HR>=125 (1) + confusion (1) + age-adjusted low oxygen (2; age<=50 PaO2<70 or SpO2<=93 or P/F<333; age>50 PaO2<60 or SpO2<=90 or P/F<250) + arterial_pH<7.35 (2; omitted pH scores 0); max 11; IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high"}]}},"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_voiXIDTGlbPzYZ4EfnAYt","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":"Calculates the SMART-COP score to predict need for intensive respiratory or vasopressor support in community-acquired pneumonia patients","exampleAgentPrompt":"Calculate the SMART-COP score for a 67-year-old patient with community-acquired pneumonia: systolic BP 88 mmHg, multilobar infiltrates on CXR, albumin 2.8 g/dL, respiratory rate 32 breaths/min, heart rate 130 bpm, new confusion present, SpO2 88%, and arterial pH 7.30.","exampleUseCases":[{"title":"ED triage of severe CAP","prompt":"I have a 72-year-old pneumonia patient in the ED — systolic BP 95 mmHg, multilobar CXR, albumin 3.2 g/dL, RR 34, HR 128, no confusion, SpO2 86%, and arterial pH 7.32. Run the SMART-COP score to see if they need intensive respiratory support."},{"title":"ICU admission decision support","prompt":"For this 55-year-old admitted with community-acquired pneumonia, compute their SMART-COP score: BP 110 systolic, no multilobar involvement, albumin 3.8 g/dL, RR 28, HR 120, acutely confused, P/F ratio 280, pH not available."},{"title":"Pneumonia severity audit for QI","prompt":"Score this 45-year-old CAP patient's SMART-COP: systolic 100 mmHg, no multilobar CXR, albumin 4.0 g/dL, respiratory rate 22, heart rate 95 bpm, no confusion, PaO2 75 mmHg, no arterial pH — I need the IRVS risk category for our quality review."}],"resultDescription":"Returns the total SMART-COP score (0–11), the IRVS risk category (low: 0–2, moderate: 3–4, high: 5–6, very high: ≥7), and the individual point contributions from each clinical parameter (SBP, multilobar CXR, albumin, age-adjusted respiratory rate, heart rate, confusion, age-adjusted oxygenation, and arterial pH).","failureModes":["Missing required parameters (age, systolic_mm_hg, multilobar_cxr, respiratory_rate, heart_rate_bpm, confusion) returns validation error","Providing more than one oxygenation input (pao2_mm_hg, spo2_percent, pf_ratio) simultaneously returns an error","Providing both albumin_g_dl and albumin_g_l simultaneously returns an error","Values outside allowed ranges (e.g. age outside 18–120, pH outside 6.80–7.80) return validation error","Omitting arterial pH is valid and scores 0 per Charles 2008 convention","Payment failure (x402) returns 402 with payment details required"],"whenToPreferThis":"Use this endpoint when you need to predict the risk of needing intensive respiratory or vasopressor support (IRVS) in a community-acquired pneumonia patient according to the validated Charles 2008 SMART-COP criteria. Prefer this over PSI/PORT or CURB-65 when the specific clinical question is ICU-level support need rather than 30-day mortality or site-of-care triage. Note this is not a site-of-care protocol — it predicts IRVS need, not admission vs. discharge.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:49:28.478Z","isFirstParty":false}