Aim higher and watch your score improve

Step 2 CK (Clinical Knowledge) is the second USMLE exam, usually taken after core clerkships. It’s one day, up to 318 questions in 16 blocks of 30 minutes, and it tests clinical decision-making skills, asking you questions like, ‘Given this presentation, what's the next best step?’ Unlike Step 1, your result is reported as a three-digit score, and residency programs look at that score when they screen applications. The passing score is 218.

Yes. Since May 7, 2026, Step 2 CK runs as sixteen blocks of 30 minutes instead of eight 60-minute blocks. AMBOSS Qbank sessions match the new format, so you practice the same block length and pacing you'll see on exam day. The content, question count, and scoring of the exam are unchanged.

AMBOSS has 4,100+ clinical practice questions for Step 2 CK and the Shelf exams, written and reviewed by physicians and mapped to the Step 2 CK content outline. They're part of a USMLE Qbank that also covers Step 1 and Step 3. 

One Qbank add-on gives you all of them, Step 1, Shelf, and Step 3 included. Every question links to the AMBOSS Library article on that topic.

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The national mean is around 250. What counts as competitive depends on the specialty: some programs screen at 240, others expect 250 or higher.

AMBOSS gives you three ways to know where you stand before test day:

1. Track your score estimate in real time on the Analysis page. It updates after every question you answer in the Qbank.
2. Take the Step 2 CK Self-Assessment, 160 questions, in one sitting, and get a three-digit score with a comparison to the national mean.
3. Use the Score Predictor to combine your NBME forms, the Free 120, and your Self-Assessment into one predicted score and range.

In a survey of 1,985 fourth-year students at 159 US medical schools, students who used AMBOSS as their primary Qbank scored 10.4 points higher on Step 2 CK. Beyond the questions, you get the Library, a three-digit score estimate, the Anki add-on, and clinical tools you'll keep using on rotations and in residency.

Three things are specific to AMBOSS:

1. Every question links to a full Library article, the same one a resident would use for that patient, rather than an explanation alone.
2. You see a three-digit score estimate in real time, alongside your percent correct, so you know where you stand on the actual Step 2 CK scale.
3. One Qbank add-on covers Step 1, Step 2 CK, Shelf exams, and Step 3, so there's nothing new to buy between exams.

Start with 200 Concepts That Appear in Every Step 2 Exam, the most-used plan on AMBOSS. For dedicated, Step 2 Prep Condensed gives you one high-yield article and five questions a day for 30 days.

Shorter high-yield plans make sure nothing gets missed: High-Yield Ethics, High-Yield Biostatistics and Epidemiology, High-Yield Patient Safety and Quality Improvement, and High-Yield Nutrition.

Yes. Ethics, communication, and professionalism are covered in the Qbank and the Library, and the High-Yield Ethics study plan works through the scenarios Step 2 CK tests most.

Yes. Since July 2026, nutrition is a reportable category on USMLE Step 2 CK score reports. The number of nutrition questions hasn't changed; they're now scored and reported separately, so a weak area shows up on your score report. 

The AMBOSS High-Yield Nutrition study plan covers the full USMLE nutrition outline in seven articles and 60+ questions.

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Yes. AI Mode answers clinical and study questions with responses grounded in physician-written AMBOSS articles, so you can check the source behind every answer.

Yes. The Step 2 CK Self-Assessment is a 160-question timed exam with a three-digit score, a comparison with the national mean, and a report that links each weak area to the articles and questions to review. Included with Student Life, or $49.99 on its own.

Yes. Every question you've answered stays in your profile when you switch to Step 2 CK. Your score estimate is recalculated from what you’ve already answered, and your adaptive Qbank sessions and study recommendations pick up from there.

Yes. The same Qbank add-on and Library cover every Shelf exam, with a study plan for each rotation. 

Everything you answer on clerkships feeds your Step 2 CK score estimate, so shelf prep is Step 2 CK prep.

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Yes. The AMBOSS app has the full Qbank and Library, and your sessions sync between phone and laptop. The Library also works offline, so you can read on a commute or on call without a connection.

With your first clerkship. The questions you practice for each rotation build your Step 2 CK profile at the same time, so by the time you reach dedicated, your score estimate is built on a year of clinical work.