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 states they are taking greater than the recommended daily allowance of vitamin E to prevent cataracts. Which complication should the nurse educate the client as related to taking excessive amounts of vitamin E?

A. Lung cancer
B. Stroke
C. Diarrhea
D. Liver damage

Correct answer: B

Rationale: The correct answer is B: Stroke. High doses of vitamin E supplements have been associated with an increased risk of hemorrhagic stroke due to its blood-thinning properties. Option A, lung cancer, is not a known complication of excessive vitamin E intake. Option C, diarrhea, is more commonly associated with excessive intake of other vitamins or minerals. Option D, liver damage, is not a commonly reported complication of vitamin E overdose.

3. List 2 Dispensable amino acids

A. Alanine
B. Serine
C. Glycine
D. Proline

Correct answer: A

Rationale: Dispensable amino acids, such as alanine and serine, can be synthesized by the body and are not required to be obtained from the diet.

4. What stimulates bile secretion from the liver to the small intestine?

A. Pepsin
B. Salivary Amylase
C. CCK
D. Secretin

Correct answer: C

Rationale: Cholecystokinin (CCK) is the hormone that stimulates the release of bile from the gallbladder into the small intestine, aiding in fat digestion. Pepsin is an enzyme in the stomach that breaks down proteins into smaller peptides, not involved in bile secretion. Salivary Amylase is an enzyme in saliva that initiates starch digestion in the mouth, not related to bile secretion. Secretin is a hormone that regulates the release of gastric juice in the stomach and triggers the pancreas to neutralize stomach acid in the small intestine, but it does not stimulate bile secretion.

5. A patient is being discharged with a vitamin K deficiency. What food should the nurse recommend to the patient to include in their diet?

A. Oranges
B. Spinach
C. Fish
D. Nuts

Correct answer: B

Rationale: Spinach is an excellent source of vitamin K, which plays a vital role in blood clotting and bone health. Oranges, fish, and nuts do not contain significant amounts of vitamin K, making them less suitable choices to address a vitamin K deficiency. Therefore, the correct recommendation for a patient with a vitamin K deficiency would be to include spinach in their diet to help replenish this essential vitamin.