About this app
Master USMLE® Step 2 CK through 344 high-yield clinical cases. First Aid Cases for the USMLE® Step 2 CK transforms high-yield concepts into realistic patient scenarios that strengthen clinical reasoning and prepare you for exam day. Based on the trusted First Aid™ series, this interactive app includes 344 exam-style clinical cases covering every major Step 2 CK topic. Active-recall questions, detailed explanations, and more than 100 images, diagrams, and tables help reinforce key concepts and improve long-term retention. FEATURES • 344 high-yield clinical cases • Active-recall questions with detailed explanations • More than 100 images, diagrams, and tables • Written by students who excelled on Step 2 CK • Organized to complement First Aid for the USMLE Step 2 CK • Perfect for clerkship review and Step 2 CK preparation COMPLETE STEP 2 CK COVERAGE • Cardiology • Dermatology • Endocrinology • Epidemiology & Preventive Medicine • Ethics & Legal Issues • Gastrointestinal • Hematology & Oncology • Infectious Disease • Musculoskeletal & Connective Tissue • Neurology • Obstetrics & Gynecology • Pediatrics • Psychiatry • Pulmonary • Renal/Genitourinary • Emergency Medicine POWERFUL STUDY TOOLS • Highlight important concepts • Bookmark difficult cases • Add personal notes • Track your progress • Mark completed cases • Email notes • Optimized for iPhone and iPad Expanded Apps Terms of Service: https://expandedapps.com/terms-of-use/ Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/
Latest release
What’s New
Updated OS, metadata, subscriptions
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 16, 2026 · 2:52 PM Free