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| USMLE Step 2 CK | Get Course | |
| 4400+ QBank paired with case-based lectures, targeted question practice, and exam-style vignettes that sharpen clinical reasoning, diagnostic workflow, and rapid interpretation of labs and imaging. |
| USMLE Step 3 | Get Course | |
| 4500+ QBank plus clinically grounded lectures, practice cases, and step-by-step test strategies that strengthen decision-making and sharpen CCS skills. |
Board-Style Practice QuestionsCOMPREHENSIVE QUESTION BANK: Access to thousands of United States Medical Licensing Examination® multiple-choice questions (MCQs) are included. Each question carefully follows the USMLE exam content outline and format. FLASHCARD AND PRACTICE EXAM MODES: Our question bank allows you to study through flashcard mode or practice exam mode, to let you study how YOU want! OPTIMIZED FOR LEARNING: Unlike other QBanks, Beat The Boards! United States Medical Licensing Examination® practice questions include referenced explanations, so you learn the “how” and “why” behind every question. |
Study CommunityPEER COLLABORATION: A study community welcomes you. Ask and answer colleague questions, form study groups, and track your progress. Strength in numbers: Help and be helped, stay motivated, and get connected. All with Beat The Boards! |
Anytime, Anywhere AccessON-THE-GO CONVENIENCE: Fit your NBME Review around your busy schedule. Get 24/7 online access optimized for smartphone, tablet, and desktop. MOBILE APP: Download our mobile app for on the go MCQ access. (Search for “American Physician Institute” in Google Play or the Apple App Store.) |
USMLE Step 2 CK & Step 3 Topics & FAQs
What topics are covered on the USMLE® Step 2 CK Exam?
The USMLE® Step 2CK Content Outline consists of the following:
| System | Range, % |
| General Principles** | 2–4 |
| Immune System | 3–5 |
| Blood & Lymphoreticular System | 4–6 |
| Behavioral Health | 6–8 |
| Nervous System & Special Senses | 6–8 |
| Musculoskeletal System/Skin & Subcutaneous Tissue | 6–10 |
| Cardiovascular System | 8–10 |
| Respiratory System | 7–9 |
| Gastrointestinal System | 7–9 |
| Renal & Urinary System & Male Reproductive | 4–6 |
| Pregnancy, Childbirth & the Puerperium | 4–6 |
| Female Reproductive System & Breast | 4–6 |
| Endocrine System | 4–6 |
| Multisystem Processes & Disorders | 4–6 |
| Biostatistics & Epidemiology/Population Health/Interpretation of Medical Literature | 3–5 |
| Social Sciences: Legal/Ethical Issues & Professionalism/Systems-based Practice & Patient Safety | 10–15 |
| Physician Tasks / Physician Competencies | Range, % |
| Laboratory/Diagnostic Studies | 13–17 |
| Diagnosis | 16–20 |
| Prognosis/Outcome | 5–9 |
| Health Maintenance/Disease Prevention | 8–12 |
| Pharmacotherapy | 8–12 |
| Clinical Interventions | 6–10 |
| Mixed Management | 12–16 |
| Practice-based Learning & Improvement | 3–5 |
| Professionalism | 5–7 |
| Systems-based Practice & Patient Safety | 4–6 |
Percentages are subject to change at any time. See the USMLE website for the most up-to-date information.
**The Step 2CK General Principles category includes normal and abnormal processes that are not limited to specific organ systems.
How long is the USMLE Step 2 CK Exam?
Step 2 CK is a one day examination lasting 9 hours. There will be 8 blocks plus the tutorial, which counts as an additional block — so don’t be alarmed when actual exam runs from blocks 2-9!
How many questions are on the USMLE Step 2 CK Exam?
The Step 2 CK exam is made up of about 318 MCQ’s, divided into eight 60 minute sets of 40 questions or less.
USMLE Step 2 CK Study Tip:
When preparing for the 2 CK, allow yourself up to 90 seconds per question, to reflect the actual exam.
What topics are covered on the USMLE® Step 3 Exam?
The USMLE® Step 3 Content Outline consists of the following:
| System | Range, % |
| General Principles of Foundational Science** | 1–3 |
| Immune System, Blood & Lymphoreticular System, and Multisystem Processes/Disorders | 6–8 |
| Behavioral Health | 4–6 |
| Nervous System & Special Senses | 8–10 |
| Skin & Subcutaneous Tissue | 4–6 |
| Musculoskeletal System | 5–7 |
| Cardiovascular System | 9–11 |
| Respiratory System | 8–10 |
| Gastrointestinal System | 6–8 |
| Renal/Urinary & Male Reproductive Systems | 4–6 |
| Pregnancy, Childbirth & the Puerperium | 4–6 |
| Pregnancy/Childbirth & Female Reproductive System & Breast | 7–9 |
| Endocrine System | 5–7 |
| Biostatistics & Epidemiology/Population Health & Interpretation of the Medical Literature | 11–13 |
| Biostatistics & Epidemiology/Population Health/Interpretation of Medical Literature | 3–5 |
| Social Sciences: Communication Skills/Ethics/Patient Safety | 7–9 |
| Physician Tasks / Physician Competencies | Range, % |
| Medical Knowledge: Applying Foundational Science Concepts | 11–12 |
| Patient Care: Diagnosis | 33–36 |
| History/Physical Exam | 5–9 |
| Laboratory/Diagnostic Studies | 9–12 |
| Diagnosis | 6–10 |
| Prognosis/Outcome | 8–11 |
| Patient Care: Management | 32–35 |
| Health Maintenance/Disease Prevention | 6–11 |
| Pharmacotherapy | 9–13 |
| Clinical Interventions | 5–9 |
| Mixed Management | 5–9 |
| Practice-based Learning & Improvement | 11–13 |
| Communication/Professionalism/Systems-based Practice & Patient Safety | 7–9 |
Percentages are subject to change at any time. See the USMLE website for the most up-to-date information.
**The general principles category for the Step 3 MCQ examination includes test items concerning normal processes not limited to specific organ systems. These test items are typically related to normal development. Categories for individual organ systems include test items concerning those normal and abnormal processes that are system-specific.
How long is the USMLE Step 3 Exam?
Step 3 is a two-day examination. The first day will last approximately 7 hours and consist of 6 blocks of 38-39 questions each. The second day will be approximately 9 hours with 6 blocks of 30 items each.
How many questions are on the USMLE Step 3 Exam?
The Step 3 exam is made up of about 232 MCQs on the first say and 180 MCQs on day 2. Day 2 will also include 13 case simulations with an allowed time of 10-20 minutes each.
USMLE Step 3 Study Tip:
When preparing for the Step 3, allow yourself up to 90 seconds per question, to reflect the actual exam.
