Clinical Calculators

CHA₂DS₂-VASc

Stroke risk in non-valvular atrial fibrillation.

Congestive heart failure +1 Hypertension +1 Age ≥ 75 +2 Diabetes mellitus +1 Prior stroke / TIA / TE +2 Vascular disease (MI, PAD, aortic plaque) +1 Age 65–74 +1 Sex category (female) +1

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Wells Criteria (PE)

Pretest probability of pulmonary embolism.

Clinical signs of DVT +3 PE is #1 diagnosis, or equally likely +3 Heart rate > 100 bpm +1.5 Immobilization ≥3d or surgery in past 4 wk +1.5 Previous PE or DVT +1.5 Hemoptysis +1 Malignancy (treated within 6 mo / palliative) +1

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CURB-65

Community-acquired pneumonia severity.

Confusion (new disorientation) +1 BUN > 19 mg/dL (urea > 7 mmol/L) +1 Respiratory rate ≥ 30 +1 SBP < 90 or DBP ≤ 60 mmHg +1 Age ≥ 65 +1

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MELD Score

End-stage liver disease severity (original MELD).

Total bilirubin (mg/dL)

INR

Creatinine (mg/dL)

Dialysis ≥2× in past week Cr=4.0

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