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Nutrition Final Exam Quizlet
1. Which nutrient is an example of a macronutrient?
- A. proteins
- B. minerals
- C. water-soluble vitamins
- D. fat-soluble vitamins
Correct answer: A
Rationale: Proteins are indeed macronutrients as they are required by the body in larger quantities for various functions such as growth, repair, and energy production. Choice B, minerals, are micronutrients needed in smaller amounts for various physiological processes. Choices C and D, water-soluble vitamins and fat-soluble vitamins, respectively, are also micronutrients that play essential roles in the body but are not classified as macronutrients.
2. What is the main function of proteins in the body?
- A. They provide structural components for the body.
- B. They assist in the absorption of vitamins.
- C. They help with the transport of nutrients in the blood.
- D. They help maintain fluid balance in the body.
Correct answer: A
Rationale: The main function of proteins in the body is to provide structural components like muscles, skin, and bones. Proteins are essential for growth, repair, and maintenance of body tissues. While proteins play a role in various physiological functions, their primary function is not to assist in the absorption of vitamins (Choice B), help with the transport of nutrients in the blood (Choice C), or maintain fluid balance (Choice D).
3. What will the treatment for a newly admitted child with cystic fibrosis center on?
- A. Chest physiotherapy
- B. Mucus-drying agents
- C. Prevention of diarrhea
- D. Insulin therapy
Correct answer: A
Rationale: The correct answer is A: Chest physiotherapy. Treatment for cystic fibrosis focuses on chest physiotherapy and aerosol medications to manage and clear thick pulmonary secretions. Chest physiotherapy helps loosen and clear mucus from the lungs, aiding in breathing and reducing the risk of infections. Mucus-drying agents (choice B) are not typically used in the treatment of cystic fibrosis as the goal is to help clear mucus, not dry it. Prevention of diarrhea (choice C) is not a primary focus in the treatment of cystic fibrosis. Insulin therapy (choice D) is not relevant to cystic fibrosis, which primarily affects the respiratory and digestive systems.
4. What type of nutrient is needed by the body and must be supplied by foods?
- A. nutraceutical
- B. metabolic nutrient
- C. organic nutrient
- D. essential nutrient
Correct answer: D
Rationale: The correct answer is D, essential nutrient. Essential nutrients are substances that the body needs for normal functioning but cannot produce in sufficient amounts, so they must be obtained through the diet. Nutraceuticals (choice A) are products derived from food sources that are purported to provide extra health benefits beyond basic nutrition. Metabolic nutrients (choice B) and organic nutrients (choice C) are not standard terms used to describe nutrients needed by the body. Therefore, choices A, B, and C are incorrect.
5. What is the most effective therapy for maintaining remission of acute lymphoblastic leukemia?
- A. Surgery to remove enlarged lymph nodes
- B. Long-term chemotherapy
- C. Nutritional supplements to enhance blood cell production
- D. Blood transfusions to replace ineffective red cells
Correct answer: B
Rationale: The correct answer is B: Long-term chemotherapy. Long-term chemotherapy, specifically with methotrexate, is the most effective therapy for maintaining remission in acute lymphoblastic leukemia. Surgery to remove enlarged lymph nodes (Choice A) is not the primary treatment for leukemia. Nutritional supplements (Choice C) may support overall health but are not the mainstay therapy for maintaining leukemia remission. Blood transfusions (Choice D) are used to address anemia in some cases but are not the primary treatment for maintaining remission in acute lymphoblastic leukemia.
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