DDX Schemas

Last updated: April 9, 2026, Pacific Time (PDT)

A homepage for interactive diagnostic workflows. Browse by lab abnormality, presenting symptom, teaching tool, or specific disease, then jump directly into the framework you want to use at the bedside, on rounds, or for teaching.

Browse Lab Interpretation Browse Clinical Symptoms Browse Teaching Tools Browse Utilities Browse By Disease

Lab Interpretation

14

Symptom Frameworks

9

Teaching Tools

1

Utilities

4

Disease Frameworks

7

Utilities

Infectious Diseases / Visualizer

Antibiotic Coverage

Interactive multi-select spectrum tool for combining antibiotics and quickly visualizing expected organism-group coverage.

Hospital Medicine / Sign-out

Checkbox-driven builder for common inpatient overnight contingencies using example sign-out language from your contingency bank.

Hospital Medicine / Symptom Relief

Inpatient Symptom Management

Selectable symptom helper for common inpatient medication options.

Hospital Medicine / Labs

Suggested Workup

Dynamic if-then lab workup tool for common electrolyte, renal, and metabolic problem representations.

Lab Interpretation

Labs, fluid studies, and hemodynamics.

Acid-Base Disorders

Framework for metabolic and respiratory acidosis/alkalosis, compensation, anion gap, and mixed disorders.

Ascites Studies

Calculate SAAG, corrected PMNs, SBP pattern, and add-on ascitic-fluid testing.

Chloride Disorders

Combined bedside framework for hyperchloremia and hypochloremia.

Bedside framework for prolonged PT/INR, prolonged aPTT, mixed coagulopathy, and DIC-pattern labs.

Includes anemia, thrombocytopenia, leukopenia, bicytopenia, and pancytopenia patterns.

Framework for beta-hydroxybutyrate elevation, DKA, euglycemic DKA, starvation ketosis, and alcoholic ketoacidosis.

Framework for intravascular versus extravascular hemolysis, DAT-positive disease, TMA, and mechanical causes.

Liver Function Test Abnormalities

Calculate CSF glucose ratio, traumatic tap correction, pleocytosis pattern, and add-on CSF tests.

Pleural Fluid Studies

Calculate Light's criteria and interpret exudate/transudate patterns.

Potassium Disorders

Combined bedside framework for hypokalemia and hyperkalemia.

Pulmonary Function Testing

PFT interpreter for obstruction, restriction, mixed patterns, DLCO clues, and bronchodilator response.

Right Heart Cath

Calculate PVR, gradients, estimated mPAP, and pulmonary-hypertension phenotype.

Sodium Disorders

Combined bedside framework for hyponatremia and hypernatremia.

Clinical Symptom

Altered Mental Status

Shortness of Breath

Teaching Tools

Infectious Diseases / Hospital Medicine

Admission Antibiotic Management

Empiric inpatient antibiotic framework for common admitting diagnoses such as SSTI, osteomyelitis, CAP, intra-abdominal infection, and sepsis with unclear source.

By Disease

Acute Coronary Syndrome (ACS)

Disease-specific framework for ACS diagnosis, acute treatment, revascularization decisions, and secondary prevention.

Cholangitis / Cholecystitis

Shared biliary disease framework for diagnosing duct infection vs gallbladder inflammation and matching antibiotics with source control.

Disease-specific framework for cirrhosis diagnosis, decompensation recognition, and complication-aware management.

Disease framework for diagnosing congestion vs low output and tailoring treatment across ADHF, HFrEF, HFpEF, and cardiogenic shock.

Disease framework for acute pancreatitis across gallstone, hypertriglyceridemic, acalculous/non-biliary, and severe necrotizing forms.

Pulmonary Hypertension

Disease framework for suspected PH: clinical recognition, echo probability, RHC phenotype, WHO group classification, and group-specific management.

Reactive Airway Disease

Shared disease framework for asthma, COPD, and overlap phenotypes with obstructive-airway diagnostics and exacerbation management.