NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

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What may vitamin C do when taken for colds?

Increase the risk of high blood pressure
Decrease the duration of cold
Cause severe dehydration
Lead to hyperactivity

The correct answer is: Decrease the duration of cold

Vitamin C is a popular supplement that is often taken to prevent or treat the common cold. While there is no conclusive evidence that vitamin C can prevent or cure a cold, some research suggests that it may help to shorten the duration of a cold. This is why B, "Decrease the duration of cold," is the correct answer. A, "Increase the risk of high blood pressure," and C, "Cause severe dehydration," are incorrect because there is no evidence that vitamin C has these effects when taken for colds. However, high doses of vitamin C may increase the risk of kidney stones and cause digestive issues. D, "Lead to hyperactivity," is also incorrect because there is no evidence that vitamin C causes hyperactivity. In fact, vitamin C plays an important role in brain function and has been shown to improve mood and reduce fatigue. In conclusion, while vitamin C may help in shortening the duration of a cold, it is not a guaranteed cure and may have potential risks at high doses. Consulting with a healthcare professional before taking any supplements is recommended.