What CBRN score do you need to pass? Breaking down the numbers

by NervousNellie 279 views2 replies
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NervousNellieOP
May 8, 2026

I've been seeing a lot of confusion about passing scores for the CBRN exam, so I wanted to share what I've researched and experienced.

The official minimum is typically 73%, but most successful candidates average around 78% on practice tests before sitting for the real thing. The study guide section tends to drag scores down because it's the most conceptually dense part of the exam.

I found that working through the cbrn burn pathophysiology & wound care management consistently for two to three weeks gets most people into the passing zone. The key isn't just doing more questions — it's reviewing every mistake and understanding the underlying principle.

Anyone who scored above 88%: what was your actual study timeline? Curious whether people who take more time consistently score higher or if there's a plateau effect.

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NervousNellie
May 8, 2026

For the people asking about study timelines: I studied 62 minutes per day for 10 weeks working full time. It's absolutely doable without burning out. The key is consistency — missing days hurts more than extending your timeline.

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ExamSuccess_D
May 8, 2026

Good thread. One thing I'd add: don't try to cram the night before. I did 2 hours the night before my CBRN and I think it hurt more than helped. Your brain needs consolidation time. Light review or full rest is better.

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