in the scientific method a tentative solution to a problem is called a what
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HESI PN Nutrition Practice Exam

1. In the scientific method, a tentative solution to a problem is called a what?

Correct answer: C

Rationale: In the scientific method, a hypothesis is a tentative solution or educated guess that is tested through research. A theory (choice A) is a well-substantiated explanation based on evidence and extensive testing. A prediction (choice B) is a statement about what will happen in the future based on existing knowledge. Correlation (choice D) refers to a mutual relationship between two or more things, indicating how they may change together but not providing a solution to a problem.

2. How should a healthcare provider respond to a parent concerned about their child's recurrent ear infections?

Correct answer: B

Rationale: When a parent expresses concerns about their child's recurrent ear infections, the best course of action is to recommend a thorough evaluation by an Ear, Nose, and Throat (ENT) specialist. This specialist can conduct a comprehensive assessment to identify the underlying cause of the ear infections and provide appropriate treatment options. Choice A is incorrect because suggesting over-the-counter ear drops without a proper evaluation may not address the root cause of the issue. Choice C is also incorrect as increasing antibiotic use without understanding the specific cause can lead to antibiotic resistance and may not be necessary. Choice D is incorrect as avoiding physical activities is unrelated to addressing recurrent ear infections and is not a recommended approach.

3. Which nutrient is an organic compound?

Correct answer: D

Rationale: Vitamin C is the correct answer because it is an organic compound containing carbon, which is a defining characteristic of organic compounds. Salt (choice A), water (choice B), and calcium (choice C) are inorganic compounds that do not contain carbon. Inorganic compounds are typically lacking carbon-hydrogen bonds, unlike organic compounds. Therefore, choices A, B, and C are incorrect in the context of being organic compounds.

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

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.

5. How should a healthcare professional address the concerns of parents about their child’s developmental delay?

Correct answer: C

Rationale: When addressing concerns about a child's developmental delay, providing information about early intervention services is crucial as it can facilitate timely support and resources. This option helps parents understand the available support systems and interventions for their child. Recommending immediate diagnostic testing may cause unnecessary anxiety without first exploring other supportive options. Suggesting waiting for natural development could result in missed opportunities for early intervention that are crucial for improving developmental outcomes. Advising on increasing physical activity is not directly related to addressing developmental delays and does not address the core issue of developmental delay.

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