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NLN NEX Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Science36.8%- Biology
  • 1. Ecology & evolution
  • 2. Cell structure & function
  • 3. Microbiology
  • 4. Genetics & DNA
- Chemistry
  • 1. Basic chemical principles
  • 2. Matter & reactions
- Human Physiology
  • 1. Homeostasis
  • 2. System functions
  • 3. Processes & mechanisms
- Human Anatomy
  • 1. Organ locations & relationships
  • 2. Body systems structure
- Health Concepts
  • 1. Disease & prevention
  • 2. Health & wellness basics
Topic 2: Mathematics27.6%- Numbers and Operations
  • 1. Fractions, decimals, percentages
  • 2. Ratios & proportions
  • 3. Basic arithmetic
- Data and Information
  • 1. Interpret tables & graphs
  • 2. Basic statistics
- Measurement
  • 1. Unit conversions
  • 2. Calculation of quantities
  • 3. Metric & standard systems
- Algebra
  • 1. Variables & expressions
  • 2. Basic equations
Topic 3: Verbal Ability35.6%- Reading Comprehension
  • 1. Main idea & detail identification
  • 2. Understanding written passages
  • 3. Inference & interpretation
- Word Knowledge
  • 1. Synonyms & antonyms
  • 2. Contextual word deduction
  • 3. Vocabulary meaning

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NLN Nursing Entrance Exam (Math, Science and Verbal) Sample Questions (Q92-Q97):

NEW QUESTION # 92
Word Knowledge
The word"accurate"most nearly means:

Answer: B

Explanation:
"Accurate" means correct or free from error. Option B is the best synonym. The other options describe inaccuracy or uncertainty. Accuracy is a high-frequency NEX vocabulary word, especially in healthcare contexts.
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NEW QUESTION # 93
Which of these responses is an example of a simple negative feedback response in the body?

Answer: A

Explanation:
Negative feedback occurs when a change in a physiological variable triggers a response that counteracts the initial change, helping maintain homeostasis. When blood glucose levels rise, the pancreas releases insulin, which promotes glucose uptake by cells and lowers blood glucose back to normal levels. This is a classic example of negative feedback. Option B is incorrect because thyroxine increases metabolism, not decreases it.
Options A and D do not clearly demonstrate a direct feedback loop restoring balance. The NEX Science exam often highlights glucose regulation as a key example of negative feedback because it clearly illustrates cause- and-effect relationships within endocrine control systems.
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NEW QUESTION # 94
Which structure works to prevent reflux of gastric contents by contracting and relaxing?

Answer: B

Explanation:
The lower esophageal sphincter (LES) is a ring of smooth muscle located at the junction between the esophagus and the stomach. Its primary function is to prevent gastric contents, including acid, from flowing back into the esophagus. The LES contracts to keep the stomach contents contained and relaxes to allow food to enter the stomach during swallowing. Dysfunction of the LES can lead to gastroesophageal reflux disease (GERD). The esophageal muscularis helps move food, the upper esophageal sphincter controls entry into the esophagus, and the angle of His is an anatomical feature rather than a muscular valve. The NEX Science exam frequently tests digestive system physiology and reflux prevention mechanisms.


NEW QUESTION # 95
A nurse needs to administer 0.75 liters of IV fluid over 3 hours. What is the flow rate in milliliters per hour?
(1 liter = 1,000 milliliters)

Answer: B

Explanation:
This question tests unit conversion and rate calculation, both of which are essential skills on the NEX Math Section, especially for medication and IV flow problems. First, convert liters to milliliters because flow rates are typically expressed in milliliters per hour. Since 1 liter equals 1,000 milliliters, multiply 0.75 liters by
1,000 to get 750 milliliters. Next, determine the flow rate by dividing the total volume by the total time. The fluid is administered over 3 hours, so divide 750 milliliters by 3 hours. This calculation gives 250 milliliters per hour. Therefore, the correct answer is option C. Option A results from dividing incorrectly, option B reflects underestimation, and option D would be correct only if the volume were larger. NEX exam questions often focus on proper setup of unit conversions before performing calculations. Always convert units first, then divide by time to find a rate.
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NEW QUESTION # 96
Which neuron carries the impulse from a receptor to the central nervous system?

Answer: D

Explanation:
Sensory neurons, also known as afferent neurons, carry impulses from sensory receptors to the central nervous system (brain and spinal cord). These neurons transmit information such as touch, temperature, pain, and pressure. Motor (efferent) neurons carry impulses away from the CNS to muscles or glands. Association neurons, also called interneurons, connect sensory and motor neurons within the CNS. The NEX Science exam frequently tests neural pathways and directional flow of nerve impulses, making sensory neurons the correct answer for signals traveling from receptors to the CNS.


NEW QUESTION # 97
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