what activities best describe the work of the placenta during pregnancy
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam 2023

1. What activities best describe the work of the placenta during pregnancy?

Correct answer: C

Rationale: The placenta plays a crucial role in producing hormones that are necessary for maintaining pregnancy, supporting fetal development, and preparing the mother's body for childbirth. Choices A, B, and D are incorrect because the placenta's primary function is not to surround and cushion the fetus, combine blood stores for nutrient exchange, or absorb vitamins and minerals. While the placenta does facilitate the exchange of nutrients and oxygen between the mother and fetus, its hormone production is the most critical function during pregnancy.

2. The most energy-rich nutrient is:

Correct answer: B

Rationale: Fat provides 9 kcal per gram, making it the most energy-rich nutrient compared to carbohydrates and proteins, which provide 4 kcal per gram.

3. When conducting assessments for malnutrition, which risk factors should the nurse consider? (SATA)

Correct answer: D

Rationale: When assessing for malnutrition, nurses should consider multiple risk factors. Dental problems and depression can impact a person's ability to eat and maintain proper nutrition. The ability to read and write may not directly relate to malnutrition risk. The correct answer is 'All of the above' because dental problems and depression are indeed risk factors, along with other factors like the inability to prepare meals and the loss of a spouse.

4. Milk and other dairy products are preferred sources of calcium because lactose enhances calcium absorption.

Correct answer: A

Rationale: Both the statement and the reason are correct and related. Milk and other dairy products are indeed preferred sources of calcium because they supply most of the available calcium. Additionally, lactose present in dairy products enhances calcium absorption, making them even more efficient sources of this essential mineral. The statement correctly identifies dairy products as preferred sources of calcium, and the reason explains how lactose contributes to better calcium absorption. The other choices are incorrect as they do not accurately assess the relationship between lactose, calcium absorption, and the preference for dairy products as sources of calcium.

5. Which of the following nutrients provide energy?(Select ONE that does not apply.)

Correct answer: D

Rationale: Carbohydrates, fats, and proteins are the three macronutrients that provide energy (calories) to the body. Carbohydrates are the body's primary source of energy, fats act as a secondary source when carbohydrate energy is exhausted, and proteins are used for energy when carbohydrate and fat sources are low. Choice D, Water, is essential for the body's functions, but it does not provide energy.

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