the first step in the scientific method is to

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 client who is experiencing dumping syndrome following gastric surgery is receiving education from a nurse. Which of the following statements by the client indicates an understanding of the teaching?

A. I should drink additional fluids with my meals.
B. I should eat high-fiber snacks between meals.
C. I should eat a protein source with each meal.
D. I can have caffeinated beverages in small amounts.

Correct answer: C

Rationale: The correct answer is C. Eating a protein source with each meal can help manage dumping syndrome by slowing gastric emptying and reducing symptoms. This choice is the most appropriate as it directly addresses a key dietary recommendation for dumping syndrome. Choices A, B, and D are incorrect because drinking additional fluids with meals, eating high-fiber snacks between meals, and consuming caffeinated beverages can exacerbate dumping syndrome symptoms by increasing gastric emptying and worsening the condition.

3. What are symptoms of uncontrolled type 1 diabetes?

A. Depression, anxiety, and fatigue
B. Increased thirst, urination, and hunger
C. Weight gain, macrosomia, and food cravings
D. Poor wound healing, blurred vision, and recurrent infections

Correct answer: B

Rationale: The correct answer is B: Increased thirst, urination, and hunger. Uncontrolled type 1 diabetes typically presents with classic symptoms including polydipsia (increased thirst), polyuria (frequent urination), and polyphagia (increased hunger). These symptoms are often accompanied by weight loss due to the body's inability to properly utilize glucose for energy. Choices A, C, and D are incorrect as they do not align with the typical symptoms of uncontrolled type 1 diabetes. Depression, anxiety, fatigue, weight gain, macrosomia, food cravings, poor wound healing, blurred vision, and recurrent infections are not primary symptoms associated with uncontrolled type 1 diabetes.

4. What is a major feature of the therapeutic lifestyle changes (TLC) recommended for the treatment of high blood cholesterol?

A. Avoiding all foods that contain cholesterol
B. Reducing sodium intake to less than 2 g/day
C. Limiting total fat intake to less than 30% of energy intake
D. Limiting saturated fat intake to less than 7% of energy intake

Correct answer: D

Rationale: The correct answer is D, 'Limiting saturated fat intake to less than 7% of energy intake.' This is a central feature of the therapeutic lifestyle changes (TLC) recommended for treating high blood cholesterol. Saturated fats can increase low-density lipoprotein (LDL) cholesterol, a significant risk factor for heart disease. Choice A is incorrect because while it is recommended to limit cholesterol intake, it's not suggested to avoid all foods containing cholesterol entirely in the TLC. Choice B is also incorrect as although reducing sodium intake is beneficial for controlling blood pressure, it's not specifically targeted in the TLC for managing high cholesterol. Lastly, while limiting total fat intake is a healthy guideline, it's not as specific or effective as limiting saturated fat intake, making choice C also incorrect.

5. Which food item interferes with the effectiveness of warfarin?

A. Cauliflower
B. Zucchini
C. Green beans
D. Broccoli

Correct answer: D

Rationale: Broccoli is high in vitamin K, which can affect the effectiveness of warfarin. Warfarin is an anticoagulant medication that functions by reducing the activity of vitamin K in the body. When one consumes broccoli, which is rich in vitamin K, it could counteract the anticoagulant effect of warfarin, thereby interfering with its effectiveness. On the other hand, cauliflower, zucchini, and green beans do not have significant levels of vitamin K and hence, are not known to impact the effectiveness of warfarin.