The NCLEX exam is a computerized adaptive test with a maximum time limit of 5 hours, which includes the introductory screen, all breaks (scheduled or unscheduled), and the actual examination

. The number of questions varies depending on the candidate's performance, with the NCLEX-RN typically having between 70 to 145 questions. The exam ends when the computer determines with 95% confidence that the candidate's ability is above or below the passing standard, or when the maximum number of questions or time limit is reached

. Candidates must answer at least 70-75 questions, but the exam can go up to 145 questions for the NCLEX-RN. There are also unscored pretest questions included within this range

. In summary:

• Maximum exam duration: 5 hours (including breaks)
• Minimum number of questions: about 70-75
• Maximum number of questions: up to 145
• The exam ends when passing/failing is determined with 95% confidence, maximum questions are reached, or time runs out

This adaptive format means some candidates may finish earlier if their competency is clearly demonstrated, while others may use the full time.