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Nutrition Final Exam
1. What is the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function?
- A. nutrient allowance
- B. nutrient requirement
- C. nutrient tolerable limit
- D. nutrient adequate intake
Correct answer: B
Rationale: The correct answer is 'B: nutrient requirement.' The nutrient requirement refers to the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function in the body. This amount ensures the body's optimal functioning and health. Choice A, 'nutrient allowance,' is incorrect as it does not specifically refer to the minimum amount needed for bodily functions but rather suggests a broader term. Choice C, 'nutrient tolerable limit,' is incorrect as it pertains to the maximum amount of a nutrient that can be consumed without adverse effects. Choice D, 'nutrient adequate intake,' is incorrect as it refers to the recommended average daily intake level of a nutrient to meet the requirements of most healthy individuals.
2. What type of vaccine should a child with a history of severe allergic reactions receive?
- A. Live attenuated vaccines
- B. Inactivated vaccines
- C. Subunit vaccines
- D. Recombinant vaccines
Correct answer: B
Rationale: Children with a history of severe allergic reactions should receive inactivated vaccines because they do not contain live pathogens. Live attenuated vaccines (choice A) contain weakened live pathogens and can potentially trigger an allergic reaction in sensitive individuals. Subunit vaccines (choice C) and recombinant vaccines (choice D) may contain components that could still trigger an allergic response in individuals with a history of severe allergies. Inactivated vaccines are the safest choice for individuals with a history of severe allergic reactions as they do not pose a risk of causing an allergic reaction due to the absence of live pathogens.
3. What is a common sign of a respiratory infection in infants?
- A. Increased appetite
- B. Rapid breathing
- C. Decreased urine output
- D. Lethargy
Correct answer: B
Rationale: Rapid breathing is a common sign of a respiratory infection in infants. When infants have a respiratory infection, their breathing may become rapid as their body tries to get more oxygen. This symptom is often seen alongside cough and fever. Increased appetite (Choice A) is not typically associated with respiratory infections but can be seen in other conditions. Decreased urine output (Choice C) is more indicative of dehydration or kidney issues rather than a respiratory infection. Lethargy (Choice D) can be a symptom of various illnesses but is not as specific to respiratory infections as rapid breathing.
4. What is the most common symptom of appendicitis in children?
- A. Vomiting and diarrhea
- B. Fever and abdominal pain
- C. Rash and joint pain
- D. Difficulty breathing
Correct answer: B
Rationale: The correct answer is B: Fever and abdominal pain. In children, appendicitis commonly presents with fever and abdominal pain. The pain typically begins around the umbilicus and then moves to the lower right quadrant. Choices A, C, and D are incorrect because vomiting and diarrhea, rash and joint pain, and difficulty breathing are not typical symptoms of appendicitis in children.
5. What is one benefit of using a large sample size in an experiment?
- A. Chance variation is less likely to affect the results.
- B. The possibility of a placebo effect is eliminated.
- C. The experiment will be double-blind.
- D. The control group will be similar to the experimental group.
Correct answer: A
Rationale: Corrected Rationale: Using a large sample size reduces the likelihood of chance variation affecting the results, providing more reliable data. Choice B is incorrect because the placebo effect is related to participants' beliefs, not sample size. Choice C is incorrect as double-blind refers to a method of reducing bias, not directly related to sample size. Choice D is incorrect because the similarity between the control and experimental groups is not solely dependent on sample size.
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