Calculates CrCl according to the Cockcroft-Gault equation.

Estimates GFR based on serum creatinine, serum cystatin C, or both.

Calculates stroke risk for patients with atrial fibrillation, possibly better than the CHADS₂ Score.

Calculates mean arterial pressure.

Determines 10-year risk of heart disease or stroke.

Calculates a corrected calcium level for patients with hypoalbuminemia.

Objectifies risk of pulmonary embolism.

Calculates body mass index and body surface area.

Calculates ideal body weight (Devine formula) and adjusted body weight.

Corrects the QT interval for heart rate extremes (choose from Bazett, Fridericia, Framingham, Hodges, or Rautaharju formulas).

Calculates the NIH Stroke Scale for quantifying stroke severity.

Estimates glomerular filtration rate based on creatinine and patient characteristics.

Calculates pregnancy dates from last period, gestational age, or date of conception.

Estimates risk of cardiac complications after noncardiac surgery.

Noninvasive estimate of liver scarring in HCV and HBV patients, to assess need for biopsy.

Estimates cirrhosis severity.

Predicts 6-week risk of major adverse cardiac event.

Calculates risk of DVT based on clinical criteria.

Calculates the actual sodium level in patients with hyperglycemia.

Coma severity based on Eye (4), Verbal (5), and Motor (6) criteria.

Calculates total daily morphine milligram equivalents.

Converts steroid dosages using dosing equivalencies.

Objectifies degree of depression severity.

Calculates maintenance fluid requirements by weight.

Estimates probability that pharyngitis is streptococcal, and suggests management course.

Rules out PE if no criteria are present and pre-test probability is ≤15%.

Screens for obstructive sleep apnea.

Estimates mortality of community-acquired pneumonia to help determine inpatient vs. outpatient treatment.

Estimates risk of major bleeding for patients on anticoagulation to assess risk-benefit in atrial fibrillation care.

Quantifies end-stage liver disease for transplant planning with sodium.

Determines if renal failure is due to pre-renal or intrinsic pathology.

Predicts ICU mortality based on lab results and clinical data.

Defines the severity of sepsis and septic shock.

Measures severity of anxiety.

Determines 10-year risk of heart disease or stroke and provides statin recommendations.

Predicts need for brain imaging after pediatric head injury.

Stratifies risk of VTE in surgical patients.

Evaluates states of metabolic acidosis.

Calculates free water deficit by estimated total body water.

The CIWA-Ar objectifies severity of alcohol withdrawal.

Estimates 10-year risk of heart attack.

Estimates mortality for adult patients with community-acquired pneumonia.

Interprets ABG.

Calculates expected serum osmolarity, for comparison to measured osmolarity to detect unmeasured compounds in the serum.

Calculates LDL based on total and HDL cholesterol and triglycerides.

Stratifies upper GI bleeding patients who are "low-risk" and candidates for outpatient management.

Predicts risk of MI or cardiac arrest after surgery.

Estimates admission to 6 month mortality for patients with acute coronary syndrome.

Provides Light's Criteria to help determine if pleural fluid is exudative.

Approximates insulin resistance.