ATI RN
ATI Nutrition Practice Test B 2019
1. Mrs. Seva also tells the nurse that she is often constipated. Because she is aging, what physical changes predispose her to constipation?
- A. inhibition of the parasympathetic reflex
- B. weakness of sphincter muscles of anus
- C. loss of tone of the smooth muscles of the colon
- D. decreased ability to absorb fluids in the lower intestines
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.
2. What physiologic role does magnesium play in the body?
- A. Blood clotting, transmission of nerve impulses, muscle contraction and relaxation
- B. Calcium homeostasis, structural integrity of heart muscle
- C. No known metabolic function, caries-preventing properties
- D. ATP energy release; metabolism of fats, carbohydrates, proteins; regulates acid-base balance
Correct answer: B
Rationale: The correct answer is B. Magnesium plays an important role in maintaining calcium homeostasis and preventing skeletal abnormalities. It is involved in more than 300 enzymatic reactions, including energy metabolism, insulin activity, and glucose use. Magnesium is vital to the structural integrity of heart muscle and other muscles and nerves. While magnesium does play a role in blood clotting, nerve impulses, muscle contraction, relaxation, ATP energy release, and metabolism of fats, carbohydrates, proteins, the primary physiologic role of magnesium in the body is related to calcium homeostasis and maintaining the structural integrity of the heart muscle. Choice A is incorrect because it includes functions of magnesium, but they are not its primary physiologic role. Choice C is incorrect as magnesium has several known metabolic functions. Choice D is incorrect because although magnesium is involved in ATP energy release and metabolism, its primary role is related to calcium homeostasis and structural integrity of muscle.
3. Which mineral is important for the synthesis of thyroid hormones?
- A. Iron
- B. Zinc
- C. Iodine
- D. Magnesium
Correct answer: C
Rationale: Iodine is the correct answer. It is crucial for the synthesis of thyroid hormones by the thyroid gland. Without sufficient iodine, the thyroid cannot produce adequate amounts of hormones, leading to potential issues like hypothyroidism. Iron (Choice A), Zinc (Choice B), and Magnesium (Choice D) do not play a direct role in the synthesis of thyroid hormones, making them incorrect choices for this question.
4. AIDS enteropathy is most commonly manifested as _____.
- A. abdominal pain and rectal bleeding
- B. diarrhea and weight loss
- C. abdominal bloating and flatulence
- D. rectal fissures and constipation
Correct answer: B
Rationale: AIDS enteropathy typically presents as diarrhea and weight loss due to the impact of HIV on the gastrointestinal tract. While abdominal pain and rectal bleeding (Choice A), abdominal bloating and flatulence (Choice C), and rectal fissures and constipation (Choice D) can occur in some cases, the most common manifestations are diarrhea and weight loss.
5. What should be the next step in the nursing research process?
- A. Review related literature
- B. Seek permission from the hospital administrator
- C. Identify the research problem
- D. Develop methods for data collection
Correct answer: D
Rationale: The correct answer is 'Develop methods for data collection' (Choice D). In the nursing research process, after the research problem has been identified, the next step would typically be to develop methods for how data will be collected. This is essential to effectively address the research problem. 'Review related literature' (Choice A), while an important step, usually occurs after the research problem has been identified and before methods for data collection are developed. 'Seek permission from the hospital administrator' (Choice B) might be necessary at some point in certain situations, but it is not the immediate next step in the research process. 'Identify the research problem' (Choice C) would typically come before developing methods for data collection. Therefore, according to the typical sequence of steps in the nursing research process, Choice D is correct.
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