Free USMLE Step 1 and Step 2 CK practice questions with clear answers and explanations, written by Dr. Ray Makar, MD, a physician with 20 years of clinical practice who passed the USMLE himself as an international medical graduate.
Step 1 Questions Step 2 CK Questions
Browse questions by subject
- USMLE Step 1 – basic sciences: pharmacology, pathology, physiology and more
- USMLE Step 2 CK – clinical knowledge: diagnosis and management
- Pharmacology – drug mechanisms, side effects and toxicities
- Pathology – disease mechanisms and classic presentations
- Dermatology – skin diseases, blistering disorders, skin cancer and drug eruptions, written by a dermatologist
Latest questions
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- USMLE Step 1 Questions: Steroid Osteoporosis, Breast Biopsy and Scoliosis
How to use this site
- Answer first. Read the question and pick your answer before opening the explanation.
- Read every explanation. Learn why the right answer is right and why the others are wrong.
- Come back often. New questions are added regularly, focused on concepts that appear on the exam again and again.
About Dr. Ray Makar
I graduated from medical school in 1982, practiced as a dermatologist for 20 years, and passed the USMLE as a foreign medical graduate after moving to the United States. I know how hard this exam is, especially for international graduates, and I built this site to make your preparation easier. Read more about me →
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This website is for exam preparation and education only. It is not medical advice and is not affiliated with the USMLE, NBME or FSMB.