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 formula with citation. Not a treatment recommendation.

Nashef 2012 EuroSCORE II Table 6 logistic in-hospital mortality after adult cardiac surgery. Age Xi is 1 if age <= 60, else age - 59. Renal function is a caller-assigned creatinine-clearance band or dialysis; magent does not run Cockcroft-Gault. Returns logit and estimated_probability_percent from the unrounded logit. Not additive EuroSCORE I, not a medical device, and Nashef 2012 publishes no low/intermediate/high percent cuts.

Fractional excretion of urea (FEUN) from BUN, urine urea nitrogen, and plasma/urine creatinine (Carvounis 2002). Use when diuretics make FENa unhelpful. Deterministic published formula with citation; not a diagnosis.

McEntire 2025 FACE DROPS: seven caller-assigned flags for acute Lyme disease-associated facial palsy versus Bell palsy. Fever +8, aches (arthralgia/myalgia) +6, cephalalgia +3, exhaustion +4, dermatomal or radicular pattern +4, otalgia or postauricular pain −1, stiff neck +3. Score −1 to 28. Scores ≤4 favor Bell palsy; ≥7 favor LDFP; 5–6 indeterminate. Not a Lyme test, diagnosis, serology order, or stroke FACE-DROPS mimic score. magent does not examine the face.

Fasting Watson 1981 theoretical Co from ingested ethanol grams and sex-specific Watson 1980 total body water. Blood-water fraction 0.80; absorbed fraction 1. Fasting Widmark-type estimate only. Ethanol only; not a medicolegal BAC or treatment dose.

Lima 2016 FAST-ED (Field Assessment Stroke Triage for Emergency Destination): facial_palsy 0-1 + arm_weakness 0-2 + speech 0-2 + eye_deviation 0-2 + neglect 0-2. Max 9. lvo_suggested iff score ≥4. Bands 0_to_1 / 2_to_3 / gte_4. Time is documented for decision making (0 points, not scored). Not a stroke diagnosis or transfer order. magent does not examine the patient.

Boer 1984 estimated lean body mass from sex, height_cm, and weight_kg (male 0.407W+0.267H-19.2; female 0.252W+0.473H-48.3). Reports lbm_kg (paper term) with ffm_kg as the same alias. Height 100-220 cm and weight 20-300 kg are magent clamps, not Boer bands. Not a dosing weight, James/Hume formula, or measured body composition. magent does not measure the patient.

Cited Sterling 2006 FIB-4 fibrosis index. Agents must not invent FIB-4 from model memory; pay per request with x402 USDC on Base. Deterministic published index with citation. Not a treatment recommendation.

Soliman 2018 EUROMACS 9.5-point right-sided heart failure score after continuous-flow LVAD. Five caller-assigned flags: RA/PCWP >0.54 (2), hemoglobin ≤10 g/dL (1), multiple IV inotropes (2.5), INTERMACS class 1-3 (2), severe RV dysfunction (2). Max 9.5; half-points not integer-rounded. Bands: low 0-2, intermediate >2 to 4, high >4. Not a device indication. Not Michigan RV-failure score. Not CRITT. magent does not catheterize or echo.

Scalea 1999 FAST four Ps (pericardial, perihepatic, perisplenic, pelvic). Each window is a caller-assigned boolean for free intraperitoneal fluid (perihepatic/Morison, perisplenic, pelvic) or pericardial fluid. positive is true if any window is positive and false only if all four are negative. Sequence is not required. Not eFAST pleural views. Not Huang or McKenney scoring. Not a laparotomy order. magent does not scan or interpret ultrasound. Not a medical device.

FeverPAIN from Little 2013 (PRISM): five caller-assigned flags (fever in past 24 hours, purulent tonsils, attendance within 3 days, severely inflamed tonsils, no cough or coryza), 1 point each, max 5. Returns published score groups 0-1 / 2-3 / 4-5. Deterministic published score with citation; not a medical device, not a test-or-treat order, and not a diagnosis of streptococcal pharyngitis. magent does not examine the throat.

Lindström 2003 Finnish diabetes risk score (FINDRISC). Original seven-item 0–20 score, cutoff ≥9: age (<45 → 0, 45–54 → 2, 55–64 → 3, ≥65 → 4); BMI (<25 → 0, 25–30 → 1, >30 → 3); sex-specific waist; BP medication 2; high-glucose history 5; daily 30-min activity 0 else 2; daily vegetables 0 else 1. Returns score and at_risk. Not a diabetes diagnosis and not the later family-history revision.

Net fluid balance in mL: caller-assigned total intake minus total output over the same interval. Optional oral plus IV intake and urine, ultrafiltration, drain, and GI output must sum to those totals when sent (Acheampong and Vincent 2015). Does not estimate insensible losses. Not a resuscitation or diuretic order; magent does not measure I/O. Deterministic published arithmetic with citation.

Black 2001 FRACTURE Index with known total-hip T-score. Age <65 0 through >=85 5. T >= -1 0; -2 <= T < -1 2; -2.5 <= T < -2 3; T < -2.5 4. Fracture after 50, maternal hip after 50, weight <=125 lb, smoker +1 each; arms to stand +2. Max 15. 5-year hip/vertebral/nonvertebral percents from printed quintiles 1-2, 3-4, 5, 6-7, 8-13. Age 18-120; T -5.0 to 4.0. Not a device, not FRAX, not a DXA order. Postmenopausal derivation; magent does not DXA-scan or take a history.

Forrest 1974 endoscopic ulcer class as assigned by the caller: ia active spurting haemorrhage, ib active oozing, iia non-bleeding visible vessel, iib adherent clot, iic flat pigmented haematin / coffee-ground base, iii clean ulcer base. Returns the canonical class and 1974 lesion description. magent does not interpret endoscopy images or invent rebleeding percentages. Not a medical device.

Fong 1999 clinical score after hepatic resection for metastatic colorectal cancer: five caller-assigned preoperative flags (node-positive primary, disease-free interval <12 months, more than one hepatic tumor, largest tumor >5 cm, CEA >200 ng/mL), 1 point each, score 0–5. favorable is true iff score ≤2. Not a resectability decision or adjuvant protocol. magent does not interpret imaging or pathology.

McKee 1971 Framingham CHF criteria. Definite if two major, or one major plus two minor, are concurrent. Nine major and seven minor caller-assigned flags. Weight loss ≥4.5 kg in 5 days in response to treatment is dual: major if that is definite, else minor if that is definite, else unused. major_count and minor_count are the fixed flags only. Not a medical device, not an echocardiographic diagnosis, and not HFrEF or HFpEF staging.

Rost 2008 FUNC score (0-11) after primary ICH from caller-assigned volume, age, location (lobar/deep/infratentorial), GCS, and pre-ICH cognitive impairment. Volume <30 mL scores 4, 30-60 scores 2, >60 scores 0; age <70 scores 2, 70-79 scores 1, >=80 scores 0; lobar 2, deep 1, infratentorial 0; GCS >=9 scores 2, <=8 scores 0; cognitive impairment absent scores 1. Companion to the Hemphill ICH Score, not a replacement. Not a diagnosis or withdrawal-of-care protocol. magent does not read CT.

Callery 2013 Fistula Risk Score after pancreatoduodenectomy: gland texture firm 0 / soft 2; pathology PDAC or pancreatitis 0 / other (ampullary, duodenal, cystic, islet cell) 1; duct mm ≥5 0, ≥4 1, ≥3 2, ≥2 3, else 4; EBL mL ≤400 0, 401–700 1, 701–1000 2, >1000 3. Max 10. Bands negligible 0, low 1–2, intermediate 3–6, high 7–10. magent does not palpate the gland or measure EBL. Not a CR-POPF diagnosis, not an ISGPS grade, not Ranson or BISAP. Not a medical device.

Fuhrman 1982 nuclear grade for renal cell carcinoma as assigned by the caller (grades 1-4). Returns the grade and the published nuclear-feature description. magent does not read slides. Not WHO/ISUP 2016. Not an RCC diagnosis. Not a medical device.