I have a 4.0 GPA in my prereqs but I'm bombing the math portion of NEX practice tests. I scored 82% on reading comprehension and 79% on science, but only 54% on math. The dosage calculation questions specifically are where I'm losing everything.
I haven't done formal math since community college two years ago and the dimensional analysis method I learned then doesn't seem to click with the way NEX frames the problems. There's also a section on basic algebra that I need to revisit.
I'm planning to retake in 6 weeks. I've been using Khan Academy for the algebra review and it's helping, but dosage calc specifically requires nursing context that Khan doesn't provide. Found some help on the NEX Test prep page which has dosage problems in the right format.
Has anyone gone from a failing math score to passing in 6 weeks? I feel like it's possible but I need a structured approach not just random practice.
Dimensional analysis is actually the right method for NEX dosage questions, but a lot of people learn it wrong and then apply it inconsistently. Try watching the AllNurses or RegisteredNurse.org YouTube channels — they frame it specifically for nursing exams and it clicked for me after years of confusion.
I went from 58% to 81% in math in about 5 weeks by doing dosage calculations every single day — I mean 20 problems every morning before anything else. The repetition builds a pattern recognition that eventually makes the problems feel automatic rather than analytical.
Your reading and science scores are strong enough that even a moderate improvement in math will push you over the total score threshold. You don't need to perfect it — you need to be consistently in the 65–70% range in math while maintaining your other section scores.
I almost quit NEX prep entirely because of the math. I'm not exaggerating, I had the registration tab open to push my test date back. My first three practice tests I was scoring in the 50s on the math section and the dosage calc stuff made me feel like I was doing nursing all wrong before I'd even started. Sound familiar? Here's what actually turned it around for me though. It wasn't more studying in general, it was drilling the same problem types over and over until the setup stopped feeling like a puzzle. Dimensional analysis. Once it clicked that every dosage question is basically the same skeleton with different numbers plugged in, my scores jumped.
What got me there was just doing a ton of timed problems and reviewing every single one I missed, even the dumb arithmetic slips. I worked through this nex practice test pdf on repeat until I could do the conversions without thinking. Don't beat yourself up about the community college gap, you're not bad at math, you're just rusty and the format is new. Give it two weeks of real reps and check your score again. I went from a 54 to passing and honestly I was the last person who thought that was possible.
Honestly I get it, the math section wrecked me too at first. I'm working full time and have kids, so I couldn't just sit down for 3 hour study marathons like the nursing students fresh out of high school. What saved me was breaking it into tiny chunks. I'd do 15 minutes of dosage calc on my lunch break, then a few more problems after the kids went to bed. The trick with dosage stuff is it's not really hard math, it's just that you've gotta drill the same setup over and over until the formula is automatic. Once I stopped overthinking it and just hammered the same conversions repeatedly, my score jumped way more than my reading or science ever did.
The thing that actually moved the needle for me was printing out problems so I wasn't stuck staring at a screen all day. I used this nex practice test pdf and kept it in my bag, so anytime I had ten minutes waiting somewhere I'd knock out a couple questions. You've already got the GPA and the brain, you just need reps. Don't beat yourself up about the 54%. Mine was worse and I'm in the program now.