The NCLEX-RN has between 85 and 150 questions, and you get up to five hours to answer them. That five hours includes the short tutorial and any breaks you take. Fifteen of the questions are unscored pretest items that NCSBN is trying out for future exams. You cannot tell which ones they are, so treat every question as if it counts.
Why the number is different for everyone
The NCLEX is a computerized adaptive test. After each answer, the computer updates its estimate of your ability and picks the next question to match it. Get one right and the next tends to be a little harder. Get one wrong and the next tends to be a little easier. This is why prioritization questions can feel harder as you go: they often are. The goal is to find the level where you answer about half the questions correctly, then decide whether that level sits above or below the passing standard.
Once the computer is confident about that decision, the exam ends. Some candidates reach that point at 85 questions. Others need all 150.
The three ways the exam ends
The 95 percent confidence rule ends most exams. Once you have answered at least 85 questions, the test stops as soon as the computer is 95 percent certain your ability is clearly above or clearly below the passing standard.
The maximum length rule applies if you reach question 150 and the computer still is not 95 percent sure. It then decides using its final estimate of your ability across every scored question.
The run out of time rule applies if the five hours end first. If you have not answered at least 85 questions by then, you do not pass. If you have, the result is based on your ability estimate from all the questions you completed. This is why pacing matters. Spending eight minutes on one hard question costs you more than one question.
Case studies are part of the count
Every NCLEX-RN includes three unfolding case studies. Each one follows a single client through six linked questions, so case studies make up 18 of your questions. You will also see standalone Next Generation items such as bowtie, matrix, drag and drop and highlight questions. Many of these give partial credit, so a mostly right answer still earns points. Do not leave a case study question half finished because one part feels uncertain.
Does stopping at 85 mean you passed?
No. Stopping at 85 only means the computer reached a confident decision early. That can happen when a candidate is well above the standard or well below it. Plenty of people pass at 150, and plenty fail at 85. The number your exam ends on is not a result, so try not to read anything into it on the day.
What this means for how you practice
Train for the long version. Do at least a few timed sets of 75 or more questions so that question 140 does not feel like a wall. Aim for a steady pace of about one to one and a half minutes for a standard question, which leaves room for case studies.
Day to day, small and consistent beats long and rare. Ten questions a day with every rationale read carefully builds the judgment the adaptive test is measuring. You can start with the free practice questions by category on this site. That is how DrillRN is set up: 10 free questions a day, each with an explanation of the right answer and all three wrong ones.