What is the primary function of antioxidants in the diet?
- A. Provide energy
- B. Support muscle growth
- C. Neutralize free radicals
- D. Increase blood sugar
Correct Answer: C
Rationale: The primary function of antioxidants in the diet is to neutralize free radicals. Free radicals can cause cellular damage, leading to various chronic diseases. Antioxidants help combat this oxidative stress by neutralizing free radicals. Choices A, B, and D are incorrect because antioxidants do not provide energy, support muscle growth, or increase blood sugar; their main role is in combating oxidative stress.
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A patient who reports stomach ulcers should avoid all the following foods, except one. Which is the exception?
- A. Proteins
- B. Caffeine
- C. Calcium
- D. Wheat
Correct Answer: D
Rationale: Patients with stomach ulcers are advised to avoid foods that can increase stomach acid levels, such as caffeine, proteins, and calcium. Wheat, on the other hand, is generally well-tolerated by individuals with ulcers as it does not stimulate gastric secretions. Therefore, the correct answer is D. Choice A (Proteins), B (Caffeine), and C (Calcium) are not recommended for patients with stomach ulcers due to their potential to exacerbate symptoms.
Protein-energy malnutrition (PEM) may be responsible for the increased incidence of noma and necrotizing ulcerative gingivitis (NUG) because these conditions are associated with depressed immune responses caused by nutritional deficiencies.
- A. Both the statement and the reason are correct and related
- B. Both the statement and the reason are correct but are not related
- C. The statement is correct, but the reason is not correct
- D. The statement is not correct, but the reason is correct
Correct Answer: A
Rationale: The corrected question highlights that protein-energy malnutrition weakens the immune system, making individuals more susceptible to conditions like noma and NUG, which are linked to compromised immunity. Choice A is correct because the statement and reason are both accurate and directly related. Protein-energy malnutrition does result in depressed immune responses, which can predispose individuals to noma and NUG. Choice B is incorrect because the statement and reason are indeed related. Choice C is incorrect as both the statement and reason are accurate. Choice D is also incorrect as the statement is correct and directly supports the reason provided.
Which of the following converts starch to disaccharides, and this reaction occurs in the _____?
- A. pancreatic amylases, small intestine
- B. brush border enzymes, small intestine
- C. luminal enzymes, large intestine
- D. pancreatic amylases, pancreas
Correct Answer: A
Rationale: The correct answer is A. Pancreatic amylases break down starch into disaccharides in the small intestine. This process occurs in the small intestine, not the large intestine or pancreas. Brush border enzymes act on disaccharides to break them down into monosaccharides, while luminal enzymes are not specifically involved in the conversion of starch to disaccharides.
In order to establish and maintain successful breastfeeding, which practice should a lactating mother try to follow?
- A. Initiate breastfeeding within 24 hours of birth
- B. Breastfeed on a schedule of every 2 to 3 hours
- C. Give a pacifier to an infant between feedings
- D. Find a breastfeeding support group to troubleshoot problems
Correct Answer: D
Rationale: The correct answer is D. Finding a breastfeeding support group is crucial for a lactating mother to establish and maintain successful breastfeeding. This group can offer valuable advice, tips, and encouragement, helping the mother troubleshoot any issues that may arise during breastfeeding. Choices A, B, and C are incorrect because breastfeeding is a natural process that should not be overly scheduled, and giving a pacifier between feedings can interfere with establishing proper breastfeeding techniques.
Which type of bread, cereal, or pasta would most likely be recommended for a patient on a fat-restricted diet?
- A. popcorn
- B. fried rice
- C. English muffins
- D. granola
Correct Answer: C
Rationale: English muffins would be the most suitable option for a patient on a fat-restricted diet. They are typically lower in fat compared to fried rice, granola, and popcorn with butter. Popcorn, fried rice, and granola are higher in fat content and may not be the best choice for individuals on a fat-restricted diet.