HESI LPN
Nutrition Final Exam
1. How much energy is required to raise the temperature of one kilogram of water by 1°C?
- A. 10 calories
- B. 100 calories
- C. 1 kilocalorie
- D. 10 kilocalories
Correct answer: C
Rationale: The correct answer is 1 kilocalorie. This is the amount of energy required to raise the temperature of 1 kilogram of water by 1°C. Choice A (10 calories) and Choice D (10 kilocalories) are incorrect as they do not represent the correct unit of measurement for this specific scenario. Choice B (100 calories) is also incorrect as it overestimates the amount of energy required. The specific heat capacity of water is approximately 1 calorie/gram °C, which means that 1 kilogram (1000 grams) of water requires 1 kilocalorie (1000 calories) to raise its temperature by 1°C.
2. What is the recommended treatment for a child with a first-degree burn?
- A. Immediate application of ice
- B. Administration of oral antibiotics
- C. Application of cool, moist compresses
- D. Application of hot packs
Correct answer: C
Rationale: The recommended treatment for a child with a first-degree burn is the application of cool, moist compresses. This helps in reducing pain and swelling without causing further damage to the skin. Applying ice directly to a burn can lead to frostbite and worsen the injury (Choice A). Oral antibiotics are not necessary for first-degree burns as they do not typically involve infection (Choice B). Hot packs should be avoided as they can further damage the skin and increase inflammation (Choice D).
3. What is a crucial aspect of managing a child with cystic fibrosis?
- A. High-sugar diet
- B. Daily chest physiotherapy
- C. Frequent use of antacids
- D. Limiting fluid intake
Correct answer: B
Rationale: Daily chest physiotherapy is crucial in managing cystic fibrosis as it helps clear mucus from the lungs, improves respiratory function, and reduces the risk of lung infections. High-sugar diets are not recommended for individuals with cystic fibrosis as they can contribute to mucus production, exacerbating respiratory issues. Frequent use of antacids is not a primary treatment for cystic fibrosis, as it does not address the underlying lung issues. Limiting fluid intake is not typically advised for individuals with cystic fibrosis, as adequate hydration is essential for maintaining lung function and thinning mucus secretions.
4. Which medication is typically used for long-term control of asthma?
- A. Albuterol
- B. Theophylline
- C. Ipratropium
- D. Prednisone
Correct answer: B
Rationale: The correct answer is B, Theophylline. Theophylline is commonly used for long-term control of asthma by relaxing the muscles around the airways to keep them open, making breathing easier. Albuterol (choice A) is a short-acting bronchodilator for quick relief of asthma symptoms, not for long-term control. Ipratropium (choice C) is another short-acting bronchodilator that helps open the airways but is not typically used for long-term control. Prednisone (choice D) is a corticosteroid usually used for short periods to control asthma exacerbations or flare-ups, not as a long-term control medication.
5. What is the primary symptom of a urinary tract infection in young children?
- A. Frequent urination
- B. Abdominal pain
- C. Vomiting
- D. Fever
Correct answer: D
Rationale: The correct answer is D, Fever. In young children, fever is a common primary symptom of a urinary tract infection, often accompanied by irritability and discomfort. Frequent urination (Choice A) is a symptom more commonly seen in adults with UTIs. While abdominal pain (Choice B) and vomiting (Choice C) can be present, they are not as primary as fever in young children with UTIs.
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