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. What is the most likely complication for a client receiving TPN who suddenly develops tremors, dizziness, and diaphoresis?

A. Fluid volume overload
B. Sepsis
C. Hyperglycemia
D. Hypoglycemia

Correct answer: D

Rationale: The correct answer is D, Hypoglycemia. When a client receiving TPN suddenly develops tremors, dizziness, and diaphoresis, it is indicative of hypoglycemia. TPN provides a high concentration of glucose, and if it is abruptly stopped or the infusion rate is reduced, it can lead to hypoglycemia. Choices A, B, and C are incorrect as they do not directly correlate with the symptoms described in the scenario. Fluid volume overload typically presents with edema and hypertension, sepsis with fever and increased heart rate, and hyperglycemia with polyuria, polydipsia, and blurred vision.

3. You are attending a certification on cardiopulmonary resuscitation (CPR) offered and required by the hospital employing you. This is

A. professional course towards credits
B. inservice education
C. advance training
D. continuing education

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

4. Cancers that arise from epithelial tissues are known as:

A. Leukemias
B. Myelomas
C. Carcinomas
D. Sarcomas

Correct answer: C

Rationale: The correct answer is C: Carcinomas. Carcinomas are cancers that originate from epithelial tissues, which are the tissues lining the surfaces of organs and structures in the body. Leukemias (choice A) are cancers of the blood-forming cells, not epithelial tissues. Myelomas (choice B) are cancers that develop in plasma cells in the bone marrow, not epithelial tissues. Sarcomas (choice D) are cancers that arise from connective tissues like bone, cartilage, or muscle, not epithelial tissues. Therefore, choices A, B, and D are incorrect in the context of cancers originating from epithelial tissues.

5. A nurse is completing an admission assessment on an adolescent client who is a vegetarian. He eats milk products but does not like beans. Which of the following items should the nurse suggest the client order for lunch to provide the nutrients most likely to be lacking in his diet?

A. Peanut butter and jelly sandwich
B. Baked potato topped with sour cream
C. Bagel with cream cheese
D. Fruit salad

Correct answer: D

Rationale: The correct answer is 'Fruit salad.' Since the adolescent client is a vegetarian who eats milk products but does not like beans, suggesting a fruit salad for lunch would provide essential nutrients like vitamins, minerals, and fiber that are commonly found in fruits. Fruit salad can help supplement the nutrients that may be lacking in his diet. Choices A, B, and C do not offer the same variety and quantity of nutrients as a fruit salad, making them less optimal choices for meeting the client's dietary needs.