A nurse is educating a client about the role of free radicals in chronic disease development. Which of the following lifestyle habits is most likely to increase free radical formation?
Smoking cigarettes regularly
Consuming a diet rich in fruits and vegetables
Engaging in regular moderate physical activity
Getting 7-9 hours of sleep each night
The Correct Answer is A
A. Smoking cigarettes regularly
Smoking introduces harmful chemicals that significantly increase oxidative stress and the production of free radicals, which damage cells and contribute to chronic diseases like cancer and cardiovascular disease.
B. Consuming a diet rich in fruits and vegetables
Fruits and vegetables contain antioxidants that neutralize free radicals and help reduce their damaging effects.
C. Engaging in regular moderate physical activity
Moderate physical activity actually reduces oxidative stress over time by enhancing the body’s antioxidant defenses.
D. Getting 7–9 hours of sleep each night
Adequate sleep supports immune function and reduces oxidative stress. Lack of sleep—not healthy sleep—is more likely to increase free radicals.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. White, because they taste the best
Taste is subjective and not a valid nutritional guideline.
B. Green, because kale is green
While green vegetables are healthy, a variety of colors ensures a broader range of nutrients.
C. Purple, because they are rare and exotic
Rarity doesn't equate to frequency of consumption or nutritional balance.
D. A variety of colors
Eating a rainbow of vegetables ensures diversity of nutrients and phytochemicals that support health.
Correct Answer is A
Explanation
A. Up to 1 drink per day
For women, moderate alcohol consumption is defined as no more than 1 standard drink per day, according to the Dietary Guidelines for Americans.
B. Up to 2 drinks per day
This is the guideline for men, not women.
C. Up to 5 drinks over 2 days
This level of consumption could be classified as binge drinking, especially for women.
D. Up to 7 drinks over 2 days
This is above the recommended limits and could increase the risk of health problems.
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