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magent — deterministic clinical APIs for agents
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Ontology translation and clinical calculators for autonomous medical agents. Pay in USDC on Base via x402. the operator’s own description
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Cited race-free CKD-EPI 2021 creatinine eGFR. Agents must not invent eGFR from model memory; pay per request with x402 USDC on Base. Deterministic published for
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Light 1972 pleural fluid criteria: exudate if protein ratio > 0.5, LDH ratio > 0.6, or pleural LDH > two-thirds the laboratory LDH ULN. ULN is required; magent
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SpO2/FiO2 (S/F) ratio as pulse-oximetry SpO2 percent divided by inspired oxygen as a fraction (0.21–1.0) (Rice 2007). Returns the ratio rounded to one decimal.
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ROX index as (SpO2 percent / FiO2) / respiratory rate in breaths/min (Roca 2016). Returns the index rounded to two decimals. Not a ventilation order. This is no
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Rapid shallow breathing index (RSBI) as respiratory rate in breaths/min divided by tidal volume in liters (Yang and Tobin 1991). Provide tidal_volume_ml (50–200
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PaO2/FiO2 ratio as arterial PO2 in mm Hg divided by inspired oxygen as a fraction (0.21–1.0). Returns the ratio rounded to one decimal. Magent does not apply AR
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Oxygenation index from FiO2 as a fraction (0.21–1.0), mean airway pressure in cm H2O, and PaO2: FiO2 × MAP × 100 / PaO2. Deterministic published arithmetic with
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Alveolar–arterial oxygen gradient from FiO2, barometric pressure, PaCO2, PaO2, and RQ using the simplified alveolar-gas equation (PH2O 47 mm Hg). Deterministic
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Shock index as heart rate in bpm divided by cuff systolic pressure in mm Hg (Allgöwer and Burri 1967). Returns the original ratio rounded to two decimals. Not a
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Mean arterial pressure from cuff systolic and diastolic BP using diastolic + pulse pressure / 3. Conventional 1/3 estimate, not an invasive aortic mean. Determi
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Adult Parkland crystalloid volume: 4 mL × kg × %TBSA for 24 hours, half in the first 8 hours from the time of injury. Baxter 1974. Deterministic published arith
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Holliday–Segar 1957 daily maintenance water from weight: 100 mL/kg for the first 10 kg, 50 mL/kg for the next 10 kg, 20 mL/kg thereafter. Returns daily and hour
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Harris–Benedict 1919 basal energy expenditure (kcal/day) from height, weight, age, and sex. Deterministic published formula with citation; not a nutrition presc
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Devine ideal body weight and 0.4 adjusted body weight from height, sex, and actual weight. Deterministic published formula with citation; not a dosing recommend
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Cited Mosteller body surface area. Agents must not invent BSA from model memory; pay per request with x402 USDC on Base. Deterministic published formula with ci
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Body-mass index from height and weight (Keys/Quetelet). Use for GLP-1 and bariatric prior-auth arithmetic. Deterministic published index with citation; not a di
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Map a natural-language drug, diagnosis, or lab phrase to a current RxNorm, ICD-10-CM, or LOINC code. Use when an agent must not hallucinate or invent a billing/
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Apgar score from five 0-2 newborn signs (appearance, pulse, grimace, activity, respiration). Deterministic published score with citation; not a diagnosis.
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Convert a glucocorticoid milligram dose among hydrocortisone, prednisone, and dexamethasone using Meikle 1977 equivalent doses (20 : 5 : 0.75). Not a taper, str
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CDC 2022 morphine milligram equivalents from a published opioid key and dose (mg/day, or mcg/hr for fentanyl_transdermal). Estimates only; do not use MME to con
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4Ts score (Lo 2006) for heparin-induced thrombocytopenia pretest probability. Four caller-assigned integers 0-2 (thrombocytopenia, timing, thrombosis, other cau
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Absolute neutrophil count from WBC and neutrophil plus band percents. Bodey 1966 granulocyte bands. Deterministic published arithmetic with citation; not a diag
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Kothari 1996 ABC/2 ellipsoid ICH volume: (a_cm × b_cm × c_cm) / 2, rounded to one decimal milliliter. A is the largest diameter, B the perpendicular diameter, a
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Hemphill 2001 ICH Score from caller-assigned GCS, age, infratentorial origin, ICH volume (mL), and IVH; max 6. GCS 3-4 scores 2, 5-12 scores 1, 13-15 scores 0;
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ABCD2 (Johnston 2007) early stroke-risk score after TIA from age, blood pressure, caller-assigned clinical features, symptom duration, and diabetes (max 7). Ban
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Glasgow Coma Scale from eye, verbal, and motor integers. edition=1974 (motor 1-5, max 14) or edition=1976 (motor 1-6, max 15) is required; magent does not pick
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Ottawa SAH Rule (Perry 2013 JAMA). Investigate when any of six findings is present: age 40 or older, neck pain or stiffness, witnessed loss of consciousness, on
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New Orleans Head CT Rule (Haydel 2000). CT is indicated if any of seven findings: headache, vomiting, age over 60, drug or alcohol intoxication, short-term memo
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PECARN pediatric head CT (Kuppermann 2009). Two age trees (under 2 vs 2-17). High if any age-applicable high-risk factor (GCS <=14 or altered mental status in b
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Canadian CT Head Rule (Stiell 2001). CT is indicated if any high-risk factor (GCS <15 at 2 hours, suspected open or depressed skull fracture, any sign of basal