The passage defines health literacy and explains why it is important for managing health and following medical instructions. Option B best captures the main focus. The other options address topics not discussed. On the NEX exam, purpose questions often begin with a definition followed by explanation, signaling that the passage is meant to inform rather than persuade or compare.

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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.

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The passage emphasizes the importance of clear communication between healthcare professionals and patients. It explains that when communication is poor, negative consequences such as medication errors and missed appointments can occur, ultimately affecting health outcomes. These supporting details all point to one central idea: effective communication in healthcare is essential for positive patient outcomes. Option B accurately summarizes this main idea. Option A shifts responsibility entirely to patients, which is not stated. Option C focuses on one consequence rather than the overall message. Option D is incorrect because the passage implies errors can be prevented with better communication. On the NEX exam, main-idea questions require identifying the broad message supported by multiple details rather than focusing on a single example.

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“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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Restrict means to limit or control. Option C is the correct synonym. This word commonly appears in medical and safety contexts.

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The passage lists several benefits of exercise, including improved cardiovascular health, stress management, improved mood, and reduced chronic disease risk. Option B is explicitly mentioned, making it the correct answer. The other options introduce benefits not discussed in the passage. On the NEX exam, detail-based questions require careful reading to identify information that is directly stated rather than inferred. Choosing only what is explicitly mentioned is key.

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“Assist” means to help or support. Option B is the correct synonym. The remaining options describe actions that oppose assistance. NEX verbal questions frequently use healthcare-related vocabulary like assist, administer, and support.

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“Beneficial” describes something that produces a positive effect or advantage. “Helpful” is the closest synonym. The other options do not match the meaning. NEX vocabulary questions often test commonly used healthcare-related words.

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This problem involves solving a linear equation with fractions. First convert the mixed number to an improper fraction or decimal.

Add to both sides to isolate the term with x:

Now divide both sides by 3:

Therefore, option D is correct. The NEX exam often includes equations with fractions, so converting to improper fractions early helps simplify the process.

This question combines fractions of time and military time. One full day is 24 hours. One-third of a day equals 24 ÷ 3 = 8 hours. Add 8 hours to 9:15 a.m. Doing so results in 5:15 p.m. In military time, p.m. hours are converted by adding 12 to the hour: 5:15 p.m. becomes 17:15. Therefore, option A is correct. Option C would represent noon, and option D is early morning. The NEX often tests time interpretation, so remembering that military time does not use “a.m.” or “p.m.” is critical.

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