Nursing Elites

1. During pregnancy, the placenta __________.

• A. forms in the second trimester of pregnancy
• B. encloses the developing organism in amniotic fluid
• C. contains one large vein that delivers nutrients to the embryo
• D. delivers food and oxygen to the developing organism

Correct answer: D

Rationale: The placenta delivers food and oxygen to the developing organism during pregnancy. It is a temporary organ that forms in the first trimester of pregnancy. Choice A is incorrect as the placenta forms in the first trimester, not the second trimester. Choice B is incorrect as the amniotic sac, not the placenta, encloses the developing organism in amniotic fluid. Choice C is incorrect as the placenta contains blood vessels (arteries and veins) that deliver nutrients to the embryo, not just one large vein.

2. What is the best-known effect of smoking during the prenatal period?

• A. Colic
• B. Respiratory distress at birth
• C. Low birth weight
• D. Delayed language development

Correct answer: C

Rationale: The best-known effect of smoking during the prenatal period is low birth weight. Smoking during pregnancy is a known teratogen that can lead to negative outcomes for the developing fetus, such as growth restrictions resulting in low birth weight. This condition can have significant long-term consequences on the child's health and development. Choices A, B, and D are incorrect as they are not the primary effect associated with smoking during the prenatal period. Colic is typically associated with digestive issues, respiratory distress at birth can be caused by various factors other than smoking, and delayed language development is not directly linked to smoking during pregnancy.

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. In healthy, physically fit women, regular moderate to vigorous exercise during pregnancy is related to __________.

• A. lower birth weight and higher risk of premature birth
• B. suppressed development of the immune system
• C. serious damage to the central nervous system
• D. improved fetal cardiovascular functioning

Correct answer: D

Rationale: In healthy, physically fit women, regular moderate to vigorous exercise during pregnancy is related to improved fetal cardiovascular functioning. Regular exercise has been shown to benefit both the mother and baby by promoting better cardiovascular health and overall well-being during pregnancy. Choices A, B, and C are incorrect as exercise during pregnancy, when done appropriately, does not lead to lower birth weight, higher risk of premature birth, suppressed immune system development, or serious damage to the central nervous system. Instead, it is known to have positive effects on fetal development and maternal health.

5. Which major theory of human development emphasizes plasticity at all ages?

• A. psychoanalytic perspective
• B. ethology
• C. evolutionary developmental psychology
• D. lifespan perspective

Correct answer: D

Rationale: The correct answer is D, the lifespan perspective. This perspective underscores the idea that individuals have the capacity for growth and change at any age, highlighting plasticity throughout the lifespan. It acknowledges the continuous development and adaptability of individuals to various experiences and factors. Choice A, the psychoanalytic perspective, focuses more on unconscious processes and early childhood experiences. Choice B, ethology, emphasizes the study of animal behavior in natural environments. Choice C, evolutionary developmental psychology, examines how evolutionary principles influence human development but does not specifically focus on plasticity at all ages.

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