USMLE Vault · Step 1
The Whole of First Aid, in Six Days
~2,400 cards. Two systems a day, 350–400 cards, six days — and the reason it works is printed on every card.
Be honest for a second. Are you completely bored of reading First Aid again? Sick of the same pages, the same tables, the same yellow highlighter — and yet genuinely afraid that if you don’t read it again, you will miss the one line that shows up on your form?
That is not laziness. It is the most reasonable feeling in Step 1 prep, and almost every student I have taught has had it in the last month before an NBME. You are stuck between a book you cannot face and a book you cannot skip.
You are allowed to stop rereading it. You are not allowed to stop covering it. Those are two different things, and once you separate them the problem gets much smaller.
Because the thing you actually need before a form is not another pass of your eyes over 700 pages. It is proof that you can still retrieve what is on them. That is a different task, it takes a fraction of the time, and it is the one the exam is actually testing.
Rereading First Aid before an NBME does not work, and everyone knows it while they are doing it. The book is 700 pages. Your eyes move, nothing locks in, and the week ends with a feeling of productivity and no evidence of it.
Reading is passive. Active recall forces your brain to retrieve the point — which is precisely what the exam asks you to do. Same content, completely different retention.
The arithmetic
| The deck | ~2,400 cards, built page by page off First Aid |
| Per card | One high-yield point, pulled from the actual lines of the page |
| Pace | 2 systems a day — 350–400 cards |
| Total | 12 systems ÷ 2 a day = 6 days |
It is not a 30,000-card monster. That is the whole point. Every card maps to a page you already own, so nothing is orphaned and there is no endless backlog to maintain.
Why the deck works — the page number
📕
The First Aid page number is printed on every single card. So the moment a card makes you hesitate — not fail, just hesitate — you open that exact page, read the topic, and read a couple of lines above and below it.
The gap closes on the spot. Not in a list of weak topics you will never open again. That single design decision is what turns a review session into a revision of the book itself.
The daily unit: two systems
This is the part that makes six days real rather than aspirational.
2️⃣
Two systems a day. Finish both before you stop. One system a day is too slow to finish the book in a week. Three is too many to finish at all. Two is the unit — twelve systems, two a day, six days.
📊
350 to 400 cards a day, across those two systems. It sounds like a lot and it is genuinely doable, because these are one-line recall prompts rather than paragraphs to read.
📕
First Aid open beside you, physically. The whole method depends on the jump from card to page taking three seconds. Hesitate on a card → open that exact page → read the topic and a couple of lines either side → carry on.
The six-day order
Run them in the same order as your systems phase — Renal first because it builds momentum, Cardiovascular last because it is hardest and stays freshest.
| Day | Systems | Cards |
|---|
| Day 1 | Renal + Respiratory | 350–400 |
| Day 2 | GIT + Reproductive | 350–400 |
| Day 3 | Endocrine + Immunology | 350–400 |
| Day 4 | HemOnc + MSK | 350–400 |
| Day 5 | Dermatology + Psychiatry | 350–400 |
| Day 6 | Neurology + Cardiovascular | 350–400 |
Why this order and not alphabetical or random. You built the systems in this sequence, so the connections are already wired in it. Revising against the grain of how you learned costs you retrieval speed, which is the only thing this pass is trying to build. Same order, second time, much faster.
The systems phase order →
Do not split a system across two days. Finish both of the day’s systems before you stop. A half-revised system behaves like an unrevised one on the form.
The two moments to run it
📉
1 · Mid-system, when UWorld will not clear 65%. Pause the blocks. Watch the
Mehlman playlist for that system, then run the Foundation deck for that same system —
about two days — then go back to UWorld.
🔄
2 · The pre-NBME reset. UWorld is finished, a form is coming, and you need the whole book back in your head. You cannot reread 700 pages in a week. You can recall all of it in six.
Which form comes next → That second use is what buys you a real baseline. NBME 27 and 28 only mean something if the content is actually in your head when you attempt them. Run the six-day pass first and the forms measure your knowledge. Skip it and they measure your forgetting.
What it does not replace
This is not a first pass. The deck revises what you have already read; it cannot teach you a system you never studied. Read the pages first — with the
First Aid Guide, which decodes all 646 of them — then recall them with this.
And it is not the NBME deck. That is a different job entirely: the NBME Booster, 4,174 cards from the retired forms, run system by system before 31, 32 and 33.