# USMLE Step 2 CK — The High-Stakes Scored Step Step 2 CK is the scored, match-critical USMLE now that Step 1 is pass/fail. Plan your dedicated period around UWorld, Amboss, and OnlineMedEd. Canonical URL: https://exclam.ai/usmle/step-2-ck/ [USMLE](https://exclam.ai/usmle/index.md)›Step 2 CK Step 2 CK With Step 1 pass/fail since 2022, Step 2 CK is now the high-stakes scored USMLE — the single most match-critical USMLE score. Clinical knowledge across internal medicine, surgery, pediatrics, OBGYN, psychiatry, family medicine, and emergency medicine. NBME publishes the Content Outline publicly. exclam.ai builds a daily plan around your dedicated period and wraps your UWorld + Amboss + OnlineMedEd practice into one schedule. Typical prep ~500h Timeline ~16w Content areas 13 [NBME outline](https://www.usmle.org/step-exams/step-2-ck) ## Exam format 16 blocks of 18–20 questions, 30 minutes each (format since May 7, 2026). ~316 questions total in 9 hours including 55 minutes of break time. 3-digit scaled score reported. Multiple-choice, multimedia, sequential-item formats. ## Step 2 CK content areas Approximate weight bands from the public NBME Content Outline. Use these for planning weight-aware coverage. | Content area | Weight | | --- | --- | | General Principles of Foundational Science | 1–5% | | Behavioral Health & Nervous Systems | 9–13% | | Cardiovascular System | 8–12% | | Respiratory System | 7–11% | | Gastrointestinal System | 7–11% | | Renal & Urinary Systems | 4–8% | | Pregnancy / Reproductive Systems | 5–9% | | Endocrine System | 4–8% | | Blood & Lymphoreticular / Immune Systems | 5–9% | | Musculoskeletal, Skin, and Connective Tissue | 6–10% | | Multisystem Processes & Disorders | 6–10% | | Biostatistics, Epidemiology, Population Health, Interpretation of Medical Literature | 4–6% | | Social Sciences (Communication, Ethics, Professionalism, Systems-Based Practice) | 6–9% | Source: [NBME USMLE Step 2 CK Content Outline (public)](https://www.usmle.org/step-exams/step-2-ck) ## Typical Step 2 CK prep stack What candidates actually use to prep for Step 2 CK. exclam.ai is the planner layer — UWorld and Amboss stay platform-locked; First Aid, Pathoma, Sketchy notes, and your own materials are what you upload. UWorld Step 2 CK QBank (industry standard) Amboss Step 2 CK QBank + library OnlineMedEd (high-yield video walkthroughs) First Aid for the USMLE Step 2 CK Pestana's Surgery Notes NBME Step 2 CK practice exams (4–6 available) Cmehjam-style high-yield review sheets for OBGYN, Pediatrics ## How exclam.ai helps with Step 2 CK The honest framing: exclam.ai is not a UWorld replacement. UWorld is the QBank and you should keep it. exclam.ai is the daily plan + flashcard + retention layer that wraps UWorld + Amboss + your notes into a coherent schedule against your dedicated period. ### Flashcards from First Aid + Pathoma Upload your First Aid chapters or Pathoma sections and exclam.ai generates spaced-retrieval flashcards mapped to organ systems. ### Dedicated-period scheduling A 16-week dedicated plan against your test date, with coverage → review → mocks phases auto-balanced. ### Wraps your UWorld blocks exclam.ai schedules when to do UWorld blocks, when to review missed items, and when to switch to mock NBME exams. The Qbank stays at UWorld; the schedule lives here. ## Step 2 CK questions How does Step 2 CK score relate to residency match? Since Step 1 went pass/fail, Step 2 CK score is the single most-weighted USMLE for match. Competitive specialties (derm, plastics, neurosurgery, ortho, rad-onc) routinely require 250+. Less competitive specialties (family medicine, peds, IM) have wider ranges. When should I take Step 2 CK? Most US candidates take Step 2 CK at the end of M3 year or early M4 — close enough to clerkships for clinical fluency but with time to study. Score-banking before ERAS submission is the strategic priority. Is Step 2 CK easier than Step 1? Different. Step 2 CK rewards clinical reasoning and pattern recognition more than memorization. Candidates who struggled on Step 1 because of pure recall often do better on Step 2 CK because the clinical scaffolding helps. ## Other USMLE Steps [Step 1 USMLE Step 1 Step 1 has been pass/fail since January 2022.](https://exclam.ai/usmle/step-1/index.md) [Step 3 USMLE Step 3 Step 3 is the final USMLE for licensure.](https://exclam.ai/usmle/step-3/index.md)