which statement best describes the composition of most foods

HESI LPN

Nutrition Final Exam Quizlet

1. Which statement best describes the composition of most foods?

A. Most foods contain a mixture of the three energy nutrients, with one or two predominating.
B. Foods do not typically contain equal amounts of the three energy nutrients.
C. Most foods contain mixtures of the three energy nutrients, although only one or two may predominate.
D. Most foods contain all three energy nutrients in varying amounts.

Correct answer: C

Rationale: The correct answer is C. Most foods contain a mixture of the three energy nutrients (carbohydrates, proteins, fats), with one or two predominating. Choice A is correct because most foods do contain a combination of energy nutrients, with one or two types usually being predominant. Choice B is incorrect as foods typically do not contain equal amounts of carbohydrates, proteins, and fats. Choice D is incorrect because most foods contain all three energy nutrients, not just one or two types.

2. What is the primary source of energy for the brain and nervous system?

A. Protein
B. Fat
C. Carbohydrate
D. Glucose

Correct answer: D

Rationale: Glucose is the correct answer as it is the primary source of energy for the brain and nervous system. The brain relies heavily on glucose to function optimally. While protein and fat play essential roles in the body, they are not the primary sources of energy for the brain and nervous system. Carbohydrates, on the other hand, are broken down into glucose, which is then used as fuel by the brain and nervous system.

3. What is a primary concern for a child with a new diagnosis of diabetes mellitus?

A. Increased growth rate
B. Risk of hyperglycemia
C. Risk of dehydration
D. Improved appetite

Correct answer: B

Rationale: The correct answer is B: Risk of hyperglycemia. When a child is newly diagnosed with diabetes mellitus, one of the primary concerns is the risk of hyperglycemia, which refers to high blood glucose levels. Hyperglycemia can lead to various complications if not managed properly, making it crucial to stabilize blood glucose levels. Choices A, C, and D are incorrect because increased growth rate, risk of dehydration, and improved appetite are not primary concerns specifically associated with a new diagnosis of diabetes mellitus.

4. What is an important dietary consideration for a child with renal failure?

A. Low-protein, low-sodium diet
B. High-protein, high-sodium diet
C. Increased calcium intake
D. High-fiber diet

Correct answer: A

Rationale: A low-protein, low-sodium diet is crucial for a child with renal failure because it helps reduce the workload on the kidneys and minimize complications. High-protein and high-sodium diets can place excessive strain on the kidneys and worsen the condition. Increased calcium intake is not typically a primary consideration for renal failure in children. While a high-fiber diet can be beneficial for overall health, it is not a specific priority for managing renal failure in children.

5. How should a healthcare provider manage a child with newly diagnosed congenital hypothyroidism?

A. Monitor for signs of hyperactivity
B. Ensure regular thyroid hormone replacement therapy
C. Encourage a high-calcium diet
D. Increase physical exercise

Correct answer: B

Rationale: Correct Answer: Ensuring regular thyroid hormone replacement therapy is crucial for managing congenital hypothyroidism in children. This therapy supports normal growth and development by replacing the deficient thyroid hormones. Monitoring for signs of hyperactivity (Choice A) is not the primary management for congenital hypothyroidism; rather, the focus should be on addressing the hormone deficiency. Encouraging a high-calcium diet (Choice C) may not directly address the thyroid hormone deficiency characteristic of congenital hypothyroidism. Increasing physical exercise (Choice D) is not the mainstay treatment for this condition; hormone replacement therapy is the cornerstone of management.