How Many NBMEs Should You Take Before Your Shelf Exam?

Summary: There’s no perfect number of NBMEs to take before your shelf exam, and honestly, that’s what makes this question so frustrating. Most people don’t need as many as they think. For me, I learned the hard way that fewer, well-used exams are way more valuable than trying to do all of them.

The Question Everyone Asks

“How many NBMEs should I take?”

I used to think there was a right answer to this. Like if you hit a certain number, you were doing it “correctly” and somehow more prepared.

That’s not really how it works. What actually matters is not how many you take, but how you use them. And I didn’t fully get that until I overdid it myself.

My Experience (aka what not to do at first)

On my first clerkship, pediatrics, I was so nervous about shelf exams that I took four NBMEs.

At the time, it felt productive. I told myself I was being thorough and covering all my bases. I took one halfway, one towards the end, and two at the end of the rotation. But looking back, that was not the best use of my time.

I was spending so much energy taking exams that I wasn’t fully learning from them. The reviews were rushed, and I wasn’t really fixing the gaps that kept showing up. I thought the more questions I did, the more I learned. That was not the case.

What I realized pretty quickly after that rotation is that two NBMEs is kind of the sweet spot. If you have extra time and you’re using them well, maybe three. But beyond that, the return just isn’t the same.

What NBMEs Are Actually For

I think part of the problem is that people treat NBMEs like a checklist. Something you just have to do at the end of each clerkship.  But they’re really there for a reason.

They’re a standardized way to practice both content and test-taking in a truly mixed block. That’s different from your daily question bank. Even if you do a 40-question block in test mode, it’s still pulling from unused questions, which means the mix depends on what you haven’t seen yet. So you might end up with a block that’s not fully representative of all “fair game” content.

NBMEs are different. They’re intentionally balanced to reflect how the exam distributes topics, rather than being influenced by what you’ve already done or what’s left in your question bank.

Treat It Like the Real Shelf

One thing I didn’t do at first and wish I had is treat every NBME like it’s the real test. That means:

• No breaks in the block
• Sit in one uninterrupted session
• Use the same pacing as you would on test day
• Take it seriously, as if it counts

Doing this has two benefits: you practice endurance, and you train yourself to manage time and mental energy under real conditions. It’s easy to think of NBMEs as “just practice,” but the more closely you mimic test day, the more reliable the feedback you get.

Why More Isn’t Always Better

It’s really tempting to think that doing more NBMEs will automatically make you better. I definitely fell into that mindset at first. But the reality is that the value of an NBME comes from the review, not the score. If you’re just taking exam after exam without slowing down and understanding your mistakes, you’re not really improving. And despite what many people say, there is a limit on how many questions you can do productively. Honestly, overdoing it just makes you more anxious. You don’t see improvement as quickly because you’re not actually learning things deeply.

What I Did in Clerkships and Recommend Now

After my first clerkship, my approach shifted to be much simpler and way less stressful. I planned for two NBMEs as my baseline. One earlier on to see where I’m at (about half or three quarters through the rotation), and one within the week of the shelf to make sure I’m on track.

If I had more time then I’d add a third. ONLY if I had more time and got through my question bank as well as incorrects on the question bank. The biggest difference was that I actually gave myself time to review them properly. I went through what I got wrong, looked for patterns, and adjusted how I studied based on that.

That part matters so much more than squeezing in another test.

How This Relates to Dedicated for Step Exams

As I’m starting to think about Step 3, I’m carrying this approach with me. If anything, I’m leaning even more into doing fewer NBMEs but using them better. Step 3 feels less like a content test and more like a performance test. It’s about making decisions efficiently and managing time.

So for me, that means focusing on:

• clean pacing
• recognizing patterns quickly
• not overcomplicating questions

I’d rather do a couple of well-reviewed practice NBMEs rather than multiple per week and feel confident in my approach than take a bunch and feel scattered.

When You Might Do More

There are definitely situations where doing more NBMEs makes sense. If your scores are all over the place, or you’re really unsure where you stand, having an extra exam can help. Same if you’re retaking an exam or just need that extra reassurance before test day.

But I think for most people, especially if you’re studying efficiently, you don’t need as many as you think you do. This is how I really recommend students use their tutors though; let us tell you when and how many NBMEs to take. It’s very personal and we know you and your studying well enough to guide you!

The Real Takeaway

If there’s one thing I wish I understood earlier, it’s that NBMEs are not the work. They’re feedback on the work.

Once I started treating them that way, everything felt a lot more manageable. So instead of asking how many you should take, I’d think about it like this:

• Take enough to understand where you are
• Take enough to see improvement
• Treat it like shelf day
• And take enough to walk into test day feeling ready.

For most people, that’s probably around two to three, not five or six. Stick to your study plan, take a couple NBMEs, and you’ll do great day-of the shelf regardless of how many NBMEs you take!

If you’re having trouble interpreting your NBME results or deciding how to adjust your study plan, working with an EMP tutor can help you identify your knowledge gaps, prioritize your next steps, and prepare more confidently for your Shelf Exam.