Calculates CrCl according to the Cockcroft-Gault equation.

Estimates GFR in CKD patients using serum creatinine, cystatin C, or both.

Calculates mean arterial pressure.

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

Estimates 10-year risk of heart disease or stroke to guide management strategies.

Calculates a corrected calcium level for patients with hypoalbuminemia or hyperalbuminemia.

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).

Quantifies stroke severity.

Estimates GFR in CKD patients using creatinine and patient characteristics.

Estimates risk of cardiac complications after noncardiac surgery.

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

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 events in patients with chest pain.

Calculates total daily morphine milligram equivalents.

Objectifies degree of depression severity.

Calculates the actual sodium level in patients with hyperglycemia.

Calculates maintenance fluid requirements by weight.

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

Converts steroid dosages using dosing equivalencies.

Calculates risk of DVT based on clinical criteria.

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 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.

Predicts ICU mortality based on lab results and clinical data.

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

Determines if renal failure is due to prerenal or intrinsic pathology.

Stratifies VTE risk in surgical patients, guiding prophylaxis decisions.

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

Defines the severity of sepsis and septic shock.

Calculates LDL based on total and HDL cholesterol and triglycerides.

Measures severity of anxiety.

Calculates free water deficit by estimated total body water.

Evaluates states of metabolic acidosis.

Predicts need for brain imaging after pediatric head injury.

The CIWA-Ar objectifies severity of alcohol withdrawal.

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

Estimates mortality for adult patients with community-acquired pneumonia.

Estimates 10-year risk of heart attack in patients 30-79 years with no history of CHD or diabetes.

Predicts risk of MI or cardiac arrest after surgery.

Approximates insulin resistance.

Interprets ABG.

Determines if pleural fluid is exudative or transudative.

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

Determines anticoagulation need in hospitalized patients by risk of VTE.