ATI LPN
PN Nutrition Assessment ATI
1. In addition to calcium, the major minerals needed to build and maintain bone tissue include:
- A. potassium
- B. iron
- C. phosphorus
- D. fluoride
Correct answer: C
Rationale: The correct answer is C: phosphorus. Phosphorus, along with calcium, is essential for bone health and maintenance. Potassium (choice A) is important for muscle function, iron (choice B) is crucial for red blood cell production, and fluoride (choice D) helps prevent tooth decay but is not a major mineral needed for bone tissue.
2. The mineral that helps control enzyme actions in cell mitochondria that produce and store high-energy compounds is:
- A. iron.
- B. cobalt.
- C. hemoglobin.
- D. vitamin B12.
Correct answer: A
Rationale: The correct answer is iron. Iron is essential for enzyme function and energy production within the mitochondria. While cobalt is important for certain enzymes, it is not the primary mineral involved in this specific function. Hemoglobin is a protein in red blood cells that carries oxygen, not a mineral involved in enzyme actions. Vitamin B12 is crucial for nerve function and DNA synthesis but is not directly related to controlling enzyme actions in mitochondria.
3. What is the recommended dietary intake of protein for adults?
- A. 0.5 g/kg.
- B. 0.8 g/kg.
- C. 1.0 g/kg.
- D. 1.5 g/kg.
Correct answer: B
Rationale: The recommended dietary intake of protein for adults is 0.8 grams per kilogram of body weight. This amount is considered adequate for most healthy adults. Choices A, C, and D are incorrect as they do not align with the generally recommended protein intake for adults.
4. Which enzyme is secreted by the salivary glands?
- A. Pepsin.
- B. Trypsin.
- C. Sucrase.
- D. Amylase.
Correct answer: D
Rationale: The correct answer is D, amylase. Amylase is an enzyme produced by the salivary glands that initiates the digestion of carbohydrates in the mouth. Pepsin (choice A) is produced in the stomach to digest proteins, trypsin (choice B) is produced in the pancreas to digest proteins, and sucrase (choice C) is produced in the small intestine to break down sucrose. Therefore, choices A, B, and C are incorrect in the context of an enzyme secreted by the salivary glands.
5. Which of the following is a characteristic of essential fatty acids?
- A. They can come from both animal and plant sources.
- B. They are not manufactured by the body.
- C. They are not manufactured by the body.
- D. They are manufactured by the body.
Correct answer: B
Rationale: The correct answer is B: Essential fatty acids are not manufactured by the body. These fatty acids must be obtained through the diet because the body cannot synthesize them. Choice A is incorrect because essential fatty acids can come from both animal and plant sources, not just from an animal source. Choice C is the correct characteristic of essential fatty acids. Choice D is incorrect because essential fatty acids are not produced by the body.
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