each of the following nutrients provides energy except one which one is the exception

ATI RN

Nutrition ATI Proctored Exam

1. Which of the following nutrients does not provide energy?

A. Proteins
B. Carbohydrates
C. Fats
D. Vitamins

Correct answer: D

Rationale: Proteins, carbohydrates, and fats are macronutrients that provide energy in the form of calories when consumed and metabolized by the body. Each gram of protein or carbohydrate provides about 4 calories, and each gram of fat provides about 9 calories. On the other hand, vitamins do not provide energy or calories. They are micronutrients that are essential for various biochemical and physiological processes in the body, including the metabolism of macronutrients. However, they do not contribute directly to the energy supply. Therefore, the correct answer is 'D: Vitamins'. Choices A, B, and C (Proteins, Carbohydrates, and Fats) are incorrect because they are macronutrients that do provide energy/calories when metabolized.

2. A healthcare provider is assessing a client who has a stage III pressure ulcer that is healing poorly. The provider should identify that which of the following vitamin deficiencies increases the client’s risk for delayed wound healing?

A. Vitamin C
B. Vitamin D
C. Vitamin E
D. Vitamin B6

Correct answer: A

Rationale: Corrected Rationale: Vitamin C deficiency can impair collagen synthesis and delay wound healing, making it crucial for recovery from pressure ulcers. Incorrect Rationales: - Vitamin D deficiency is associated with bone health, not specifically wound healing. - Vitamin E deficiency can lead to neurological and immune system issues but is not directly linked to delayed wound healing. - Vitamin B6 deficiency can cause skin rashes and neurological symptoms but is not a primary factor in delayed wound healing.

3. Sam is trying to lose weight by skipping lunch. By the middle of the afternoon, Sam is very uncomfortable and feels that they "have" to eat. Sam is experiencing:

A. appetite
B. satiety
C. satiation
D. hunger

Correct answer: D

Rationale: Hunger is the physiological need to eat, which Sam is experiencing due to skipping a meal and the body signaling the need for nutrients.

4. Each is a physiologic role of vitamin D, except one. Which is the exception?

A. Hematopoiesis
B. Cardiac and neuromuscular function
C. Immune responses
D. Serum calcium regulation

Correct answer: A

Rationale: The correct answer is A, Hematopoiesis. Vitamin D plays a crucial role in regulating serum calcium levels, which is essential for maintaining cardiac and neuromuscular function. Additionally, vitamin D is involved in modulating immune responses. However, hematopoiesis, the formation of red blood cells, is not a direct physiologic role of vitamin D. Therefore, hematopoiesis is the exception among the listed functions of vitamin D.

5. Which food should the nurse recommend for a client deficient in vitamin A?

A. Orange slices
B. Steamed carrots
C. Apple sauce
D. Baked potato

Correct answer: B

Rationale: The correct answer is B, steamed carrots, as they are high in vitamin A. Carrots are rich in beta-carotene, a precursor to vitamin A, which is essential for good vision, a healthy immune system, and cell growth. Oranges (choice A) are a good source of vitamin C but not vitamin A. Apple sauce (choice C) and baked potato (choice D) do not provide significant amounts of vitamin A compared to steamed carrots, making them less suitable recommendations for a client deficient in this specific nutrient.