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. What is the movement of water from an area of lower solute concentration to one of higher solute concentration called?
- A. Hypodipsia
- B. Hypernatremia
- C. Hypokalemia
- D. Osmosis
Correct answer: D
Rationale: The correct answer is D, Osmosis. Osmosis is the process where water moves from an area of low solute concentration to an area of high solute concentration. This movement equalizes the solute concentration in intracellular and extracellular fluids. Choices A, B, and C are incorrect because they do not describe the movement of water based on solute concentration levels.
3. Which of the following statements are correct?
- A. Lipids are transported in the blood as lipoproteins, which are clusters of lipids associated with proteins.
- B. In type II diabetes, the pancreas produces insulin, but cells are resistant to this signal.
- C. The glycemic index classifies foods based on their potential to raise blood glucose levels.
- D. All of the above
Correct answer: D
Rationale: Option A is correct because lipoproteins indeed transport lipids in the blood. They are complexes of lipids and proteins that transport water-insoluble lipids through the blood. Option B is correct as it accurately describes the condition of type II diabetes where the pancreas can produce insulin, but the cells are resistant to its signal, causing an ineffective regulation of blood sugar. Option C is also correct because the glycemic index is indeed a classification system for foods based on their potential to raise blood glucose levels. High glycemic index foods raise blood glucose levels faster than low glycemic index foods. Hence, all the statements are correct, making option D the correct answer.
4. A child with ear problem should be assessed for the following, EXCEPT:
- A. is there any fever?
- B. Ear discharge
- C. If discharge is present for how long?
- D. Ear pain
Correct answer: A
Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.
5. What is tocopherol?
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B3
- D. Vitamin E
Correct answer: D
Rationale: Tocopherol is another name for Vitamin E, a fat-soluble antioxidant that helps protect cell membranes from oxidative damage. Choices A, B, and C are incorrect as tocopherol is specifically related to Vitamin E and not Vitamin B1, B2, or B3.
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