Step 1 of the USMLE is a multiple choice test, offered as a computer-based exam. Each
examination covers content related to the traditionally defined disciplines of anatomy,
behavioral sciences, biochemistry, microbiology, pathology, pharmacology, and
physiology, as well as to interdisciplinary areas including genetics, aging, immunology,
nutrition, and molecular and cell biology
Step 1 is a broadly based, integrated examination. Test items commonly require you to
perform one or more of the following tasks:
- interpret graphic and tabular material,
- identify gross and microscopic pathologic and normal specimens,
- apply basic science knowledge to clinical problems.
It is an eight-hour computer-based exam consisting of 322 multiple-choice questions
(MCQs) divided into seven blocks each consisting of 46 questions.