- The exam has three timed sections: Verbal Ability, Mathematics, and Science, each capped at 60 minutes.
- Science is the largest content area at 38%, followed by Verbal Ability at 34% and Mathematics at 28%.
- Of 163 total multiple-choice questions, 145 are scored and 18 are unscored pretest items.
- There is no universal passing score - each nursing program sets its own admission cutoff.
How the PAX-RN/NEX Exam Is Structured
The National League for Nursing's legacy PAX exam has been updated and rebranded as the Nursing Entrance Exam (NEX). Candidates searching for "PAX-RN" are almost always looking for information about this current exam, and that's exactly what this guide covers. If you're still getting oriented to the basics, start with What Is PAX-RN? before diving into domain specifics.
NEX is a computer-based exam delivered with a live proctor - either in person at your school or virtually through Proctor360. The exam is built around three timed content areas, and each section gets its own 60-minute block, for a total testing time of three hours across the full exam. There are 163 four-option multiple-choice questions in total: 145 count toward your score, while 18 are unscored items the NLN uses to evaluate future questions. You won't know which items are which, so every question deserves your full attention.
If you want a broader look at how the sections interact and how tough test-takers generally find them, see How Hard Is the PAX-RN Exam? Complete Difficulty Guide 2026.
Domain 1: Verbal Ability (34%)
Verbal Ability makes up 34% of the exam, the second-largest of the three domains. This section evaluates how well you read, interpret, and reason with language - a skill nursing programs care about because clinical documentation, patient education, and interdisciplinary communication all depend on precise reading and writing.
Verbal Ability
Expect passages and standalone items that test comprehension, vocabulary in context, and command of standard written English.
- Reading comprehension of short passages, including main idea, inference, and author's purpose
- Vocabulary questions using context clues rather than pure memorization
- Sentence structure, grammar, and word usage in a clinical or general context
- Word relationships such as analogies or synonym/antonym reasoning
Because this domain leans on reading speed as much as reading accuracy, practicing under the same 60-minute time pressure you'll face on test day is one of the highest-value things you can do. A steady, timed-practice routine is covered in more depth in the PAX-RN Study Guide 2026: How to Pass on Your First Attempt.
Domain 2: Mathematics (28%)
Mathematics carries the smallest weight of the three domains at 28%, but "smallest" doesn't mean easy to skip. This section checks whether you can perform the kind of quantitative reasoning nursing coursework and clinical dosage calculations demand.
Mathematics
Questions are drawn from foundational arithmetic and pre-algebra skills rather than advanced or calculus-level math.
- Whole number, fraction, and decimal operations
- Ratios, proportions, and percentages - the backbone of future dosage calculation coursework
- Basic algebraic expressions and simple equation solving
- Unit conversions and measurement reasoning, including metric relationships
Because you get 60 minutes for this section just like the other two, and calculators are typically not part of the standard format, mental math fluency and estimation skills matter as much as knowing the formulas. Many candidates find that daily short drills on fractions, ratios, and percentages produce faster gains than long, infrequent study sessions.
Key Takeaway
Prioritize ratio and percentage problems in your math review - they show up in multiple forms and mirror the proportional reasoning used in future clinical dosage calculations.
Domain 3: Science (38%)
Science is the largest domain on the exam at 38%, meaning it carries more weight than Verbal Ability and Mathematics individually. This makes it the section most likely to determine whether your overall composite meets a given program's cutoff, so it deserves a disproportionate share of your prep time.
Science
The science content spans multiple subject areas rather than focusing narrowly on one discipline.
- Human anatomy and physiology, including major body systems
- General biology concepts such as cell structure and basic genetics
- Chemistry fundamentals, including basic reactions and the periodic table
- Scientific reasoning - interpreting data, graphs, and experimental setups
Because Science spans so many subject areas within a single 60-minute window, candidates who spread review across anatomy, biology, and chemistry - rather than deep-diving one topic - tend to feel more prepared on test day. For a condensed reference you can revisit in the days before your exam, the PAX-RN Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly this kind of last-mile review.
Comparing the Three Domains
Seeing the three domains side by side makes it easier to plan how you'll divide your limited study hours.
| Domain | Weight | Time Allotted | Core Focus |
|---|---|---|---|
| Verbal Ability | 34% | 60 minutes | Reading comprehension, vocabulary, grammar |
| Mathematics | 28% | 60 minutes | Arithmetic, ratios, basic algebra, unit conversion |
| Science | 38% | 60 minutes | Anatomy, biology, chemistry, scientific reasoning |
Notice that all three sections receive identical time allotments even though their content weights differ. That means your pacing strategy inside each section should be tailored to how much material that domain covers - Science, for instance, spans more subject areas in the same 60 minutes as the more narrowly-scoped Mathematics section.
Registration, Fees, and Retake Rules
Understanding the logistics around the exam is just as important as understanding the content. Effective March 1, 2026, pricing is $59 for a school-paid, on-campus administration and $80 for a virtual administration proctored through Proctor360. Which option you use typically depends on what your target nursing program arranges, so confirm with your school's admissions office before registering.
If your first attempt doesn't hit your target program's cutoff, the NLN's standard policy requires a 30-day waiting period between attempts, unless your school sets a different retake frequency. Scores remain available for three years, so a strong result can support applications to multiple programs or future terms. For the full cost picture, including how fees compare across administration types, read PAX-RN Certification Cost 2026: Complete Pricing Breakdown. You can also review testing windows and scheduling logistics in PAX-RN Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Building a Domain-Weighted Study Plan
Because Science carries the heaviest weight and spans the widest range of topics, it makes sense to front-load your schedule with science review, then layer in Verbal Ability and Mathematics as the exam date approaches. A simple four-week structure built around the domain weights looks like this:
Science Foundations
- Review anatomy and physiology systems
- Refresh basic chemistry and biology vocabulary
- Practice interpreting data tables and graphs
Verbal Ability Focus
- Do timed reading comprehension passages
- Build vocabulary using context-clue strategies
- Review grammar and sentence structure rules
Mathematics Drills
- Practice fractions, decimals, and percentages daily
- Work ratio and proportion word problems
- Review unit conversions without a calculator
Full Timed Practice
- Take full-length, timed practice sessions for each domain
- Revisit weak areas identified from earlier weeks
- Do a light final review using a condensed reference sheet
For a more detailed, day-by-day breakdown of this kind of plan, see the PAX-RN Study Guide 2026: How to Pass on Your First Attempt. You can also build timed practice into your own routine using the full-length simulations at our practice test platform.
Who Reviews Your Domain Scores
Your exam results don't go to an employer directly - they go to the nursing program admissions committees you apply to. Because each school sets its own cutoff and may weight the three domains differently in its holistic review, it's worth checking your target program's specific requirements rather than assuming a single "good score" applies everywhere. Details on eligibility and how programs typically use these scores are covered in PAX-RN Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Strong domain scores also tend to correlate with readiness for early nursing coursework, since Verbal Ability, Mathematics, and Science each map onto skills you'll use in anatomy, pharmacology, and clinical documentation classes. If you're weighing whether the investment of time and testing fees is worthwhile relative to your long-term goals, Is the PAX-RN Certification Worth It? Complete ROI Analysis 2026 walks through that decision in more detail, and PAX-RN Salary Guide 2026: Complete Earnings Analysis looks at the career trajectory nursing school admission opens up.
Ready to test your current level against real domain weights? Run a full-length timed simulation at paxrnexam.com's practice test hub before you commit to a study schedule - it's the fastest way to see which of the three domains needs the most attention.
Frequently Asked Questions
Science is the largest domain at 38%, followed by Verbal Ability at 34% and Mathematics at 28%.
Each of the three sections - Verbal Ability, Mathematics, and Science - has its own 60-minute time limit, for three hours of total testing time.
The exam includes 163 total four-option multiple-choice questions, but only 145 are scored. The remaining 18 are unscored pretest items you can't identify during the test.
No. The NLN does not set a universal passing score. Each nursing program establishes its own admission cutoff, so your target requirement depends on where you're applying.
Yes, but the NLN generally requires a 30-day wait between attempts unless your school sets a different frequency. Scores stay valid for three years once earned.