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. Which nutrient is most important for the prevention of osteoporosis?

A. Vitamin A
B. Iron
C. Calcium
D. Protein

Correct answer: C

Rationale: Calcium is the most important nutrient for bone health and the prevention of osteoporosis. Calcium plays a crucial role in maintaining bone density and strength. Vitamin A is important for vision and immune function but is not directly related to bone health. Iron is essential for oxygen transport in the blood, while protein is important for muscle growth and repair. However, in the context of preventing osteoporosis, calcium is the key nutrient.

3. A nurse is providing teaching to a client who has type 1 diabetes mellitus. Which of the following statements by the client indicates an understanding of the teaching?

A. Albumin in my urine is an indication of normal kidney function.
B. I will keep my HbA1c at five percent.
C. I will have ketones in my urine if my blood glucose is maintained at 190 milligrams per deciliter.
D. I will keep my blood glucose levels between 200 and 212 milligrams per deciliter.

Correct answer: B

Rationale: The correct answer is B. Maintaining an HbA1c level of 5 percent indicates good long-term blood glucose control and understanding of diabetes management. Choice A is incorrect because the presence of albumin in the urine (albuminuria) is actually an indication of kidney damage in diabetes. Choice C is incorrect as ketones in the urine are a sign of inadequate insulin and can occur when blood glucose levels are high, not at a specific level like 190 mg/dL. Choice D is also incorrect as the client should aim to keep blood glucose levels within a tighter range for better control, typically between 80-130 mg/dL before meals and less than 180 mg/dL after meals.

4. A nurse is developing a plan of care for a client who has anorexia nervosa. Which of the following actions should the nurse include in the plan?

A. Encourage the client to participate in developing a system of rewards.
B. Arrange for someone to remain with the client for 30 minutes after meals.
C. Offer the client a selection of beverages at each meal.
D. Inform the client that a weight gain of 2.3 kg per week is expected.

Correct answer: A

Rationale: Encouraging the client to participate in developing a system of rewards is an essential part of the plan of care for a client with anorexia nervosa. This action can help motivate and engage the client in their treatment plan, promoting a sense of achievement and progress. Choice B, arranging for someone to remain with the client for 30 minutes after meals, may not address the underlying issues related to anorexia nervosa and could potentially disrupt the client's independence. Choice C, offering a selection of beverages at each meal, is not directly related to addressing the client's condition of anorexia nervosa. Choice D, informing the client about an expected weight gain, could increase anxiety and may not be appropriate without considering the client's individual progress and readiness.

5. After a vaginal examination, the nurse determines that the clientâ€™s fetus is in an occiput posterior position. The nurse would anticipate that the client will have:

A. A precipitous birth
B. Intense back pain
C. Frequent leg cramps
D. Nausea and vomiting

Correct answer: D

Rationale: Understanding the underlying pathology and therapeutic techniques ensures that nursing care is not only reactive but also preventative, reducing the risk of complications.