ATI RN
ATI Nutrition Practice A
1. What is the first step in the scientific method?
- A. Conduct an experiment
- B. Make an observation and ask a question
- C. Formulate a hypothesis
- D. Reach a consensus
Correct answer: B
Rationale: The first step in the scientific method is to make an observation and ask a question. This is because the scientific method is a systematic process of investigation that begins with observing a phenomenon or asking a question about it. This is followed by formulating a hypothesis (Choice C), designing and conducting an experiment to test the hypothesis (Choice A), and analyzing the results to reach a consensus or conclusion (Choice D). Therefore, choices A, C, and D are incorrect as they represent steps that occur after the initial observation and question.
2. A healthcare professional is preparing a list of resources in a community where nutritional status is significantly influenced by economics. What should the professional recommend?
- A. Public service announcement on healthy eating
- B. Educational programs on food safety
- C. The MyPyramid food guidance system
- D. The Supplemental Nutrition Assistance Program (SNAP)
Correct answer: D
Rationale: The correct answer is D, the Supplemental Nutrition Assistance Program (SNAP). SNAP provides financial assistance to help low-income individuals purchase food, directly addressing economic barriers to nutrition. Choices A, B, and C do not directly address the economic aspect of the community's nutritional status. A public service announcement on healthy eating may raise awareness but does not provide financial assistance. Educational programs on food safety focus on a different aspect of nutrition. The MyPyramid food guidance system is a tool for healthy eating but does not address the economic challenges faced by the community.
3. Each statement is true of proteins, except one. Which is the exception?
- A. Proteins are composed of building blocks called amino acids
- B. The classification of the 20 common amino acids is based on the properties of their side chains
- C. The general structure of an amino acid varies considerably
- D. Amino acids polymerize to form long chains called polypeptides
Correct answer: B
Rationale: The correct answer is B. The classification of the 20 common amino acids is not based on the properties of their side chains, but rather on the structure of their amino and carboxyl groups. These groups are consistent among all amino acids, while the side chains, also known as R groups, are what vary and give each amino acid its unique properties. Choice A is correct because proteins are indeed composed of amino acids. Choice C is incorrect because while the side chains of amino acids can vary, the general structure of an amino acid - a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain - is consistent. Choice D is correct because amino acids do polymerize to form long chains called polypeptides, which can then fold into complex shapes to form proteins.
4. A client with a history of pancreatitis is being taught by a nurse. Which of the following food choices should the nurse instruct the client to avoid?
- A. Noodles
- B. Vegetable Soup
- C. Baked Fish
- D. Cheddar cheese
Correct answer: D
Rationale: Patients with pancreatitis should avoid high-fat foods like cheddar cheese as they can exacerbate symptoms due to the organ's role in fat digestion. Noodles, vegetable soup, and baked fish are generally considered to be lower in fat content and are thus safer choices for individuals with pancreatitis.
5. Nutritional goals for a patient wishing to modify eating patterns should adhere to each, except one. Which is the exception?
- A. Measurable
- B. Immediate
- C. Realistic
- D. Achievable
Correct answer: B
Rationale: Nutritional goals should be measurable, realistic, and achievable. They should not be immediate, as sustainable changes take time.
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