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Free NLN NEX Science Exam Prep

NLN Nursing Entrance Exam (NEX) - Science Section

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15 chapters covering the exam topics in this guide

NLN NEX Science Exam Details

NLN Nursing Entrance Exam (NEX) - Science Section

Administered by National League for Nursing (NLN)

Official Source
There is no universal passing score. The Science subject test is scored as percent correct and a percentile rank; nationally, roughly 69% correct meets the 50th percentile for RN applicants and about 56% correct for LPN/VN applicants. Each nursing program sets its own minimum.
Passing Score
60
Questions
60
Minutes
The full NLN NEX exam typically costs about $73.50 to $80.00 depending on the school and proctoring option; the Science section is one of the three subject tests delivered in a single administration and is not priced separately.
Exam Fee
Study time: About 4 to 8 weeks of focused review across biology, anatomy and physiology, chemistry, and health concepts.

Exam Content Breakdown

Based on the official National League for Nursing (NLN) content outline

Biology36%

Cell structure and function, diffusion and osmosis, mitosis and meiosis, genetics and DNA, plants and photosynthesis, evolution and classification, ecology, microbiology, and laboratory procedures and research.

Human Anatomy20%

Directional terms, body planes and sections, organ systems and major organs, and the structure of the cardiovascular, skeletal, muscular, integumentary, nervous, endocrine, respiratory, digestive, urinary, lymphatic, and sensory systems.

Human Physiology20%

How body systems function and work together, homeostasis and feedback mechanisms, cellular processes, and the physiology of the cardiovascular, respiratory, endocrine, nervous, digestive, urinary, and immune systems.

Chemistry9%

Atomic structure, the periodic table, physical and chemical change, chemical bonding, acids, bases and pH, solutions, and basic organic chemistry, with emphasis relevant to medication and the body.

Health15%

Individual and community/population health, including substance use, physical health, growth and development, mental and emotional health, prevention and safety, nutrition, and the physical environment.

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