HESI LPN
HESI PN Nutrition Practice Exam
1. What is the term for the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius?
- A. Calorie
- B. Joule
- C. Kilojoule
- D. Kilocalorie
Correct answer: D
Rationale: The correct answer is D, Kilocalorie. The term kilocalorie, often referred to as a calorie, is the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. While Choice A, Calorie, is technically correct, it is not the most specific term for the described amount of heat. Choice B, Joule, is a unit of energy but not specifically related to the amount of heat required to raise the temperature of water. Choice C, Kilojoule, is also a unit of energy but not the precise term for the heat required to raise the temperature of water by one degree Celsius.
2. What is a common sign of congenital hip dysplasia in infants?
- A. Symmetrical hip movement
- B. Limited range of motion in the hip
- C. Swelling of the knees
- D. Dislocated patella
Correct answer: B
Rationale: Limited range of motion in the hip, often noted as a limitation in abduction, is a common sign of congenital hip dysplasia. This limitation is due to the abnormal development of the hip joint, affecting its movement. Symmetrical hip movement (Choice A) is not a characteristic sign of congenital hip dysplasia. Swelling of the knees (Choice C) is not typically associated with this condition. Dislocated patella (Choice D) refers to a different anatomical structure and is not a common sign of congenital hip dysplasia.
3. What is the key to preventing recurrent respiratory infections in children with cystic fibrosis?
- A. Routine use of antibiotics
- B. Daily chest physiotherapy
- C. Increased fluid intake
- D. Dietary supplements
Correct answer: B
Rationale: The correct answer is B: Daily chest physiotherapy. Daily chest physiotherapy is essential in cystic fibrosis as it helps in clearing mucus from the lungs, reducing the frequency of respiratory infections. Antibiotics (Choice A) may treat infections but are not the key preventive measure. Increased fluid intake (Choice C) and dietary supplements (Choice D) can be beneficial for overall health but do not directly prevent recurrent respiratory infections in children with cystic fibrosis.
4. Approximately how many grams does a normal half-cup vegetable portion weigh?
- A. 5 grams
- B. 50 grams
- C. 100 grams
- D. 150 grams
Correct answer: C
Rationale: A normal half-cup vegetable portion usually weighs around 100 grams. This weight is a standard measurement for a half-cup serving of vegetables, making choice C the correct answer. Choices A, B, and D are incorrect as they do not align with the typical weight of a half-cup vegetable portion.
5. 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.
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