Nursing Elites

1. __________ may heighten the effects of a high-fat diet.

• A. Sex hormones
• B. Over-the-counter medications
• C. Free radicals
• D. Low body weight

Correct answer: C

Rationale: Free radicals may contribute to oxidative stress, increasing the risk of conditions associated with a high-fat diet. When consuming a high-fat diet, the body may produce more free radicals, leading to oxidative damage. Sex hormones, over-the-counter medications, and low body weight do not directly heighten the effects of a high-fat diet like free radicals do.

2. According to Jean Piaget's cognitive-developmental theory, __________?

• A. children actively construct knowledge as they manipulate and explore their world
• B. children's learning depends on reinforcers, such as rewards from adults
• C. adult teaching is the best way to foster development
• D. rapid development occurs during sensitive periods

Correct answer: A

Rationale: According to Jean Piaget's cognitive-developmental theory, children actively construct knowledge as they manipulate and explore their world. Piaget emphasized that children learn through their own actions and interactions with the environment, leading to cognitive development. Choice B is incorrect because Piaget's theory focuses on children's active engagement in learning rather than passive reinforcement. Choice C is incorrect because Piaget's theory highlights the child's role in constructing knowledge, not solely relying on adult teaching. Choice D is incorrect as it refers to sensitive periods, a concept more associated with other developmental theories like Erikson's psychosocial theory, not Piaget's cognitive-developmental theory.

3. Breastfeeding for just a few weeks ________.

• A. is a rare practice among American women
• B. leads directly to later obesity
• C. is not helpful because, in the beginning, breastfeeding causes constipation
• D. offers some protection against respiratory and intestinal infections

Correct answer: D

Rationale: Breastfeeding for even a short period offers infants protection against respiratory and intestinal infections. Choice A is incorrect because breastfeeding is not a rare practice among American women. Choice B is incorrect as there is no direct link between breastfeeding for a few weeks and later obesity. Choice C is incorrect as breastfeeding does not cause constipation in infants; in fact, it can help prevent constipation.

4. During the second trimester, a white, cheeselike substance called __________ emerges on the skin.

• A. lanugo
• B. corpus luteum
• C. vernix
• D. chorion

Correct answer: C

Rationale: During the second trimester of pregnancy, a white, cheeselike substance called vernix emerges on the skin of the developing fetus. Vernix is a protective layer that helps prevent the skin from becoming waterlogged during the time in the amniotic fluid. Choice A, lanugo, is incorrect as lanugo refers to the fine, soft hair that covers the body of a fetus. Choice B, corpus luteum, is incorrect as it is a temporary endocrine structure involved in the menstrual cycle. Choice D, chorion, is incorrect as it is one of the membranes that surround the embryo and later the fetus.

5. An ovum bursts from one of a woman's two __________ and is drawn into one of two __________.

• A. ovaries; testes
• B. fallopian tubes; ovaries
• C. corpus luteum; fallopian tubes
• D. ovaries; fallopian tubes Answer: D Page Ref: 76 Skill Level: Remember Topic: Prenatal Development Difficulty Level: Easy

Correct answer: D

Rationale: An ovum bursts from one of a woman's two ovaries and is drawn into one of two fallopian tubes. This is a correct description of the process of ovulation and fertilization in human reproductive anatomy. The ovaries are responsible for producing and releasing eggs, while the fallopian tubes provide a pathway for the egg to travel to the uterus for potential fertilization.

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