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.

Objectifies risk of pulmonary embolism.

Calculates a corrected calcium level for patients with hypoalbuminemia.

Quantifies stroke severity.

Calculates body mass index and body surface area.

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

Estimates GFR in CKD patients using creatinine and patient characteristics.

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

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

Calculates maintenance fluid requirements by weight.

Calculates the actual sodium level in patients with hyperglycemia.

Estimates risk of cardiac complications after noncardiac surgery.

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%.

Converts steroid dosages using dosing equivalencies.

Estimates cirrhosis severity.

Calculates risk of DVT based on clinical criteria.

Objectifies degree of depression severity.

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

Calculates total daily morphine milligram equivalents.

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

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

Predicts ICU mortality based on lab results and clinical data.

Predicts need for brain imaging after pediatric head injury.

Defines the severity of sepsis and septic shock.

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

Calculates LDL based on total and HDL cholesterol and triglycerides.

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

Evaluates states of metabolic acidosis.

Calculates free water deficit by estimated total body water.

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

Interprets ABG.

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.

Approximates insulin resistance.

Measures severity of anxiety.

Stratifies VTE risk in surgical patients, guiding prophylaxis decisions.

The CIWA-Ar objectifies severity of alcohol withdrawal.

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

Screens for obstructive sleep apnea.

Determines anticoagulation need in hospitalized patients by risk of VTE.

Predicts likelihood of appendicitis diagnosis.

Estimates ICU mortality.

Rules out need for head CT in minor head trauma.

Estimates the risk of stroke after a suspected transient ischemic attack (TIA).