ATI RN
ATI RN Nutrition Online Practice 2019
1. Match protease with its digestive action:
- A. breaks down carbs
- B. breaks down proteins
- C. breaks down lipids
- D. helps fat digestion
Correct answer: B
Rationale: Proteases are enzymes that break down proteins into smaller peptides and amino acids.
2. What is the conversion of genetic information in RNA into a sequence of amino acids?
- A. translation
- B. transcription
- C.
- D.
Correct answer: A
Rationale: The correct answer is 'translation.' Translation is the process where the genetic information in messenger RNA (mRNA) is decoded to produce a specific sequence of amino acids, forming a protein. This process occurs at ribosomes within the cell. Option B, 'transcription,' is incorrect as transcription is the process of synthesizing mRNA from a DNA template. Options C and D are irrelevant as they are not related to the conversion of genetic information into amino acids.
3. 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.
4. A nurse is providing discharge teaching about food choices to a client who has hypokalemia. Which of the following foods should the nurse identify as the best source of potassium?
- A. 1 cup grapes
- B. 1 cup shredded lettuce
- C. 1 cup cooked tomatoes
- D. 1 cup apple slices
Correct answer: C
Rationale: Cooked tomatoes are high in potassium, which is crucial for maintaining normal cell function, nerve transmission, and muscle contraction, making them a suitable choice for addressing hypokalemia. Grapes, shredded lettuce, and apple slices do not contain as much potassium as cooked tomatoes, so they are not the best choice for addressing hypokalemia.
5. A nurse is educating a group of older adults in a community center on weight management using the BMI scale. Using the client's height and weight to calculate BMI, which of the following clients has a healthy BMI?
- A. A client with a weight of 128 lb and height of 70 inches
- B. A client with a weight of 150 lb and height of 68 inches
- C. A client with a weight of 200 lb and height of 72 inches
- D. A client with a weight of 133 lb and height of 60 inches
Correct answer: A
Rationale: To determine a healthy BMI, we need to calculate it using the formula: BMI = weight (lbs) / height^2 (inches) x 703. For choice A, BMI = 128 / (70 x 70) x 703 = 18.38, which falls within the healthy BMI range of 18.5-24.9. Therefore, choice A is correct. Choices B, C, and D have BMIs of 22.8, 27.1, and 26.1, respectively, which are outside the healthy range. Thus, choices B, C, and D are incorrect.
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