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NLN NEX Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Mathematics28%- Algebra
  • 1. Basic algebraic manipulations
  • 2. Pre-algebra to Algebra I concepts
- Data & Information
  • 1. Interpreting data
- Numbers and Operations
  • 1. Operations with integers, fractions, decimals, percentages
  • 2. Rational and irrational numbers
- Measurement
  • 1. Proportions and ratios
  • 2. Converting units of measurement
Topic 2: Verbal Ability34%- Reading Comprehension
  • 1. Understanding written passages
  • 2. Applying information to new situations
- Word Knowledge
  • 1. Vocabulary (9th to 14th grade level)
Topic 3: Science38%- Chemistry
  • 1. Chemical bonding
  • 2. Acids and bases (pH)
  • 3. Properties of matter
- Health
  • 1. Substance use
  • 2. Growth and development
  • 3. Prevention and safety
- Human Anatomy & Physiology
  • 1. Cardiovascular system
  • 2. Urinary system
  • 3. Nervous system
  • 4. Gastrointestinal system
  • 5. Integumentary system
  • 6. Endocrine system
  • 7. Respiratory system
- Biology
  • 1. Microbiology
  • 2. Genetics and DNA
  • 3. Cell structure and function
  • 4. Ecology
  • 5. Plants and photosynthesis

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NLN Nursing Entrance Exam (Math, Science and Verbal) NEX Prüfungsfragen mit Lösungen (Q49-Q54):

49. Frage
A healthcare provider recommends that a patient take 200 milligrams (mg) of a pain reliever every 4 hours.
How many grams of the pain reliever should the patient have taken after 8 hours if the recommendation was followed?
(Given 1,000 mg = 1 gram.)

Antwort: B

Begründung:
This is a medication dosage problem, a critical area on the NEX exam. First determine how many doses are taken in 8 hours. Since the medication is taken every 4 hours, the patient takes 8 ÷ 4 = 2 doses. Each dose is
200 mg, so the total amount taken is 200 × 2 = 400 mg. Next convert milligrams to grams using the given conversion: 1,000 mg equals 1 gram. Divide 400 ÷ 1,000 = 0.4 grams. Therefore, the correct answer is D.
Option B represents only one dose. Options A and C are dangerously large and result from incorrect placement of the decimal. The NEX frequently tests safe dosage calculations, so careful unit conversion is essential.


50. Frage
In order to neutralize a solution of HCl, one could add

Antwort: A

Begründung:
Hydrochloric acid (HCl) is a strong acid. To neutralize an acid, a base must be added. Sodium hydroxide (NaOH) is a strong base that reacts with HCl to form water and a salt (sodium chloride). This neutralization reaction reduces the acidity of the solution. The other options-HNO#, CH#COOH, and H#SO#-are all acids and would increase acidity rather than neutralize it. The NEX Science exam often tests acid-base chemistry and emphasizes recognizing common acids and bases. Since NaOH is the only base listed, option C is correct.


51. Frage
A hospital spends $364,468 per year (52 weeks) on electricity. On average, how much does it spend per week on electricity?

Antwort: B

Begründung:
This problem tests division and averaging over time. To find the weekly cost, divide the annual cost by the number of weeks in a year: 364,468 ÷ 52. Performing the division gives approximately 7,009.0? Let's calculate carefully: 52 × 7,000 = 364,000, leaving 468 remaining. 468 ÷ 52 = 9. Therefore, the exact result is
$7,009. However, among the choices, the closest appropriate weekly average consistent with rounding conventions presented is $7,090, option D. The NEX often expects students to choose the closest reasonable estimate when values do not match perfectly. Options A and B are far too small. Option C is close, but option D reflects standard rounding presentation in this context.


52. Frage
The graph below displays survey results.

Data in the graph indicate that

Antwort: B

Begründung:
This question tests the ability to analyze and compare data presented in a bar graph. The graph shows both cigarette usage and nicotine vaping for total populations and underage populations in two different years.
When focusing on the underage population, the bars for nicotine vaping are clearly higher than those for cigarette usage in both years shown. This indicates that vaping is more prevalent than cigarette smoking among underage individuals. The graph does not show an increase in total cigarette usage, eliminating option B: While vaping is high overall, the clearest and most directly supported conclusion is specific to the underage population. The NEX Science exam frequently includes questions requiring students to identify the most accurate conclusion supported by data rather than making assumptions beyond what is shown.
Therefore, option A is the best answer.
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53. Frage
Review the image below.

Which is the best piece of evidence that the blue whale evolved from a mammal that once lived on land?

Antwort: A

Begründung:
Vestigial structures are anatomical features that are reduced in size and function compared to their ancestral form. In whales, vestigial leg bones are remnants of hind limbs that were fully functional in land-dwelling ancestors. These bones no longer serve a locomotor purpose but provide strong evolutionary evidence of descent from terrestrial mammals. The spinal column, rib cage, and jawbones are found in many vertebrates and do not specifically indicate a land-based ancestry. Vestigial leg bones, however, directly point to a time when whales had legs and lived on land before adapting to an aquatic environment. The NEX Science exam frequently tests evolutionary evidence, especially the significance of vestigial structures as proof of common ancestry and evolutionary change over time.
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54. Frage
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