Clinical Vignettes for the USMLE Step 2 CK:Fifth Edition parallels this format. The book contains 368 clinical vignette-style questions covering the principles of clinical science and was assembled based on the published content outline for the USMLE Step 2. The questions are divided into eight blocks of 46 questions each. As on the Step 2 CK exam, each block tests the examinee on all core areas of clinical medicine. Answers are in the second half of the book. Each answer is accompanied by a concise but comprehensive explanation and is referenced to a key textbook or journal article for further reading.