Best Resources for USMLE Step 1: UWorld, First Aid, AnKing, Sketchy & More
When preparing for the USMLE Step 1, the sheer volume of study materials can feel completely overwhelming. It is easy to fall into the trap of "resource hoarding" — buying every book, video series, and QBank available, only to end up with superficial knowledge and severe burnout.
Since the transition to a Pass/Fail system, the key to Step 1 success is high-yield efficiency. Your goal is to build a rock-solid foundation for Step 2 CK without wasting precious time. To do this, you only need a handful of resources. Here is the definitive guide to the gold-standard UFAPS method — and how to use each resource effectively.
1. UWorld: The Undisputed King
UWorld is not an assessment tool — it is your primary learning textbook. Many students make the mistake of using UWorld solely to see what score they get, but its true value lies in its incredibly detailed explanations.
How to Use It: Treat every explanation (both for correct and incorrect answer choices) as a mini-lecture. Pay close attention to why the wrong answers are incorrect.
A Crucial 2026 Shift: Step 1 now uses a modernized modular delivery format consisting of 14 blocks of 20 questions (30 minutes per block), rather than the legacy 40-question blocks. From day one, configure your custom UWorld blocks to 20 questions on timed mode to master the rapid pacing of the actual exam.
The Goal: Complete at least one full pass of UWorld. A second pass or a thorough review of your "incorrects" is ideal if time permits.
2. First Aid: Your Master Blueprint
First Aid is the undisputed "bible" of Step 1 prep. However, it is written as a dense, high-yield outline — not a textbook. Trying to read it cover-to-cover without any context is a recipe for rote-memorization failure.
How to Use It: Use First Aid as a framework to organize your knowledge. When you review a UWorld question, open the corresponding page in First Aid and annotate any extra pearls of wisdom directly into the margins. Use it to review weak organ systems alongside your practice blocks — if you are struggling with a concept, watch the relevant Pathoma or Boards & Beyond video first to understand the why before trying to memorize the First Aid page.
3. AnKing (Anki): The Spaced Repetition Powerhouse
The USMLE Step 1 tests an immense amount of detail. Flashcards are the best way to prevent your brain from "leaking" information over a multi-month study period. The AnKing deck (built on the open-source flashcard app Anki) is the gold-standard community deck.
How to Use It: Do not try to do all 30,000+ cards in the deck. Instead, search for and "unsuspend" cards that correspond specifically to the UWorld questions you got wrong or the Sketchy/Pathoma videos you watched that day.
Consistency is Key: Spaced repetition only works if you do your reviews every single day. Spend the first 30 to 45 minutes of your morning clearing your daily review queue.
4. Pathoma: The Pathology Holy Grail
Pathology accounts for roughly 44% to 52% of the Step 1 exam. Created by Dr. Husain Sattar, Pathoma is a masterclass in making complex disease processes simple and logical.
How to Use It:
- Chapters 1 to 3 (General Pathology): These three chapters are the absolute bedrock of the exam — covering cellular injury, inflammation, and neoplasia. You must watch these videos and fully understand them multiple times before your exam day.
- Organ Systems: Watch the corresponding Pathoma videos before you dive into a new organ system block in UWorld. It will save you hours of confusion.
5. Sketchy Medical: Visual Memory Palaces
Microbiology and Pharmacology are heavily tested, but they require a massive amount of dry memorization. Sketchy solves this by using highly structured, visual "memory palaces" where characters and symbols represent specific drug mechanisms, side effects, or bacterial characteristics.
- Sketchy Micro: An absolute necessity. Virtually every student who passes Step 1 credits Sketchy Micro with locking down bacteria, viruses, fungi, and parasites.
- Sketchy Pharm: Highly recommended for autonomic drugs, antimicrobials, and chemotherapy agents.
How to Use It: Watch a Sketchy video, look at the annotated image summary, and immediately unsuspend the corresponding Anki cards to lock the visual associations into your long-term memory.
6. The Assessment Tools: NBME Practice Exams
You should not step foot into a Prometric center until you have objective proof that you are ready to pass. This is where the National Board of Medical Examiners (NBME) self-assessments come in.
- Which to Take: Focus on NBME Forms 25 through 31 and the Official Free 120.
- The Safety Threshold: Because Step 1 is Pass/Fail, you are aiming for a comfortable safety margin. A score of 65% or higher on at least two consecutive NBME practice exams correlates to a >99% statistical probability of passing the actual exam.
- Pacing Practice: Use these assessments to practice your mental stamina and build your break strategy around the 14-block format.
Resource Stack Summary: How They Fit Together
| Resource | Purpose | Recommended Usage |
|---|---|---|
| UWorld | Primary Learning | 1 full pass (20-question timed blocks) |
| First Aid | Blueprint & Review Checklist | Daily annotation and systems review |
| AnKing | Long-Term Retention | Daily reviews of targeted cards |
| Pathoma | Core Pathology | Focus heavily on Chapters 1–3 |
| Sketchy | Micro & Pharm Memorization | Watch videos paired with Anki cards |
| NBMEs | Assessment & Readiness | Forms 25–31 and the Free 120 |
By streamlining your resource list to these core, high-yield tools, you will avoid cognitive overload, build a deeper understanding of medicine, and confidently secure your "Pass" on Step 1.
One More Resource: Expert Mentorship
The tools above will give you everything you need to study — but they won't tell you how to use them together around your specific timeline, weak subjects, and score target. That gap is where most IMGs lose months of preparation chasing the wrong things.
USMLE Wise coaching pairs you with a mentor who has navigated this exact process. They review your NBME trends, build a week-by-week schedule around your gaps, and adjust your plan in real time as your scores move. It is the one resource that makes every other resource on this list more effective. See how USMLE Wise coaching works →