USMLE Step 1 confusion pairs
589 pairs of diagnoses, drugs, mechanisms, and findings that look alike on Step 1, grouped by system.
- Pharmacology54 pairs
- Neurology41 pairs
- Biochemistry & Genetics41 pairs
- Embryology & Anatomy39 pairs
- Gastrointestinal38 pairs
- Cardiovascular36 pairs
- Microbiology35 pairs
- Infectious Disease35 pairs
- Hematology & Oncology31 pairs
- Endocrine30 pairs
- Reproductive27 pairs
- Renal & Acid-Base26 pairs
- Behavioral & Public Health24 pairs
- Respiratory22 pairs
- Immunology22 pairs
- Psychiatry21 pairs
- MSK & Rheumatology21 pairs
- Dermatology17 pairs
- Pathology basics15 pairs
- Pediatrics14 pairs