Calculates CrCl according to the Cockcroft-Gault equation.

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

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

Calculates mean arterial pressure.

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

Calculates body mass index and body surface area.

Calculates a corrected calcium level for patients with hypoalbuminemia.

Objectifies risk of pulmonary embolism.

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

Estimates GFR in CKD patients using creatinine and patient characteristics.

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

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.

Quantifies stroke severity.

Estimates cirrhosis severity.

Objectifies degree of depression severity.

Predicts 6-week risk of major adverse cardiac events in patients with chest pain.

Calculates risk of DVT based on clinical criteria.

Converts steroid dosages using dosing equivalencies.

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

Calculates the actual sodium level in patients with hyperglycemia.

Screens for obstructive sleep apnea.

Calculates total daily morphine milligram equivalents.

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

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

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

Calculates maintenance fluid requirements by weight.

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

Predicts ICU mortality based on lab results and clinical data.

Calculates LDL based on total and HDL cholesterol and triglycerides.

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

Measures severity of anxiety.

Stratifies VTE risk in surgical patients, guiding prophylaxis decisions.

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

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

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

Defines the severity of sepsis and septic shock.

Evaluates states of metabolic acidosis.

Calculates free water deficit by estimated total body water.

Approximates insulin resistance.

The CIWA-Ar objectifies severity of alcohol withdrawal.

Predicts need for brain imaging after pediatric head injury.

Estimates mortality for adult patients with community-acquired pneumonia.

Interprets ABG.

Predicts risk of MI or cardiac arrest after surgery.

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

Predicts 10-year survival in patients with multiple comorbidities.

Predicts risk of pulmonary complications after surgery, including respiratory failure.

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