Step 3 CCS Practice Cases
CCS Cases offers 200+ realistic USMLE Step 3 CCS scenarios with real-time patient simulation, instant scoring, and detailed explanations. Each case mirrors the actual Primum interface so you build muscle memory before exam day.
How Our Cases Work
- Pick a case by specialty or difficulty level.
- Read the patient vignette and begin managing the encounter.
- Order labs, imaging, meds, and consults through our realistic simulator.
- Advance the clock and respond as the patient evolves.
- Get an instant score breakdown showing exactly what you did right (and missed).
What You Get
- 200+ cases covering every tested specialty
- Real-time simulation that matches the Primum interface
- Detailed explanations with evidence-based rationale
- Performance tracking to see improvement over time
- AI tutor that answers your questions mid-case
Who It's For
Our case bank is designed for anyone preparing for USMLE Step 3 — whether you're an IMG, a US graduate, or a resident fitting study time between shifts. Cases scale from foundational to advanced so you can start at your level.
Sample Case Walkthroughs
Chest Pain — Acute Coronary Syndrome →
58-year-old male presents to the ED with sudden-onset crushing substernal chest pain radiating to the left arm, diaphoresis, and nausea for the past 45 minutes.
Shortness of Breath — Community-Acquired Pneumonia →
72-year-old female presents with 3 days of productive cough, fever to 102°F, chills, and progressive dyspnea on exertion.
Abdominal Pain — Acute Appendicitis →
24-year-old male presents with 12 hours of periumbilical pain that has migrated to the right lower quadrant, low-grade fever, nausea, and anorexia.
Altered Mental Status — Diabetic Ketoacidosis →
32-year-old female with Type 1 diabetes presents with confusion, rapid deep breathing, fruity breath odor, nausea, vomiting, and abdominal pain. Last insulin dose was 2 days ago.
Headache — Subarachnoid Hemorrhage →
45-year-old female presents with sudden-onset "worst headache of my life," stiff neck, photophobia, and one episode of vomiting. Symptoms began 2 hours ago during exercise.
FAQ
How many CCS practice cases do you offer?
We currently have over 200 CCS practice cases spanning all major specialties tested on Step 3, including cardiology, pulmonology, GI, neurology, OB/GYN, psychiatry, and emergency medicine.
Are the cases updated to match the current exam format?
Yes. Our cases are regularly reviewed by practicing physicians and updated to reflect current USMLE guidelines and the latest Primum software interface changes.