Master UWorld, take NBME practice exams weekly, and the CBSE will be a manageable milestone, not a roadblock. Last updated: 2025. Always check your specific medical school or ECFMG requirements for the most current passing thresholds.

What is the NBME CBSE? The Comprehensive Basic Science Examination (CBSE) is a 200-question, multiple-choice assessment created by the National Board of Medical Examiners (NBME). It is designed to evaluate a examinee's understanding of the basic sciences as they relate to the practice of medicine.