NLN NEX - Nursing Entrance Exam (Math, Science and Verbal)

“Initial” refers to the first stage or beginning of something. Option B best matches this definition. NEX questions frequently test sequencing vocabulary.

======

The passage explains that endorphins released during physical activity improve mood and well-being. Option C directly states this effect. The other options contradict the information provided. The NEX exam often tests understanding of cause-and-effect relationships in health-related passages.

======

Controlled experiments allow researchers to isolate one variable and observe its effects while keeping other factors constant. This makes it possible to determine cause-and-effect relationships. Option C correctly reflects this purpose. The other options misrepresent the role of experiments. On the NEX exam, scientific reading passages often focus on basic research principles and reasoning.

======

Adequate means enough to meet a need or requirement. Option C correctly matches the meaning. This word is commonly used in healthcare contexts such as adequate nutrition or adequate hydration.

======

The passage explains what antibiotics treat, what they do not treat, and the consequences of misuse. Its purpose is informational, focusing on responsible use to prevent resistance. Option C best captures this purpose. The other options either misrepresent or ignore the main focus. Purpose questions on the NEX often test whether the reader understandswhythe passage was written.

======

This question asks for themain idea, which is the central message of the passage. The passage discusses several roles of water in the body, including temperature regulation, nutrient transport, and waste removal. It also highlights the effects of dehydration and the importance of monitoring fluid intake, particularly in older adults. All these details support one central idea: hydration is vital for maintaining overall health and proper body function. Option C correctly summarizes this main point. Option A is incorrect because the passage actually suggests older adults are at increased risk of dehydration. Option B contradicts the passage, which emphasizes water’s importance. Option D is incorrect because the passage notes that thirst may decrease with age and is not the only indicator. On the NEX exam, main-idea questions often require recognizing repeated themes across the passage rather than focusing on one detail.

======

“Abundant” means existing in large quantities or more than enough. Option B, “plentiful,” is the closest synonym. Scarce and limited are opposites, and fragile refers to being easily broken. NEX word knowledge questions focus on synonyms used in common academic and healthcare contexts.

======

The passage discusses both causes of falls in older adults and strategies to prevent them. Option B accurately summarizes this purpose. The other options focus on details not emphasized. Purpose questions on the NEX often involve identifying both the problem and the proposed solution.

======

To implement means to put a plan or decision into action. Option B is the correct synonym. This word is frequently used in healthcare policies and procedures.

======

The passage distinguishes between short-term and chronic stress. While short-term stress may increase alertness, chronic stress is associated with negative health effects. One of the effects specifically mentioned is increased blood pressure. Option C is therefore correct. Options A and D describe benefits not associated with chronic stress in the passage. Option B is incorrect because the passage states that chronic stress weakens, rather than strengthens, the immune system. The NEX exam often includes questions that test the ability to identify contrasting ideas within a passage, such as short-term versus long-term effects.

======