Nursing Elites

1. The yolk sac __________.

• A. forms during the third trimester of pregnancy
• B. is the outer ring of cells that surrounds the blastocyst Copyright © 2018 Laura E. Berk. All Rights Reserved. 3 Test Bank for Berk, Development Through the Lifespan, 7e
• C. produces blood cells until the organs are mature enough to take over this function
• D. contains one large vein that delivers blood loaded with nutrients and two arteries that remove waste Answer: C Page Ref: 77 Skill Level: Understand Topic: Prenatal Development Difficulty Level: Moderate

Correct answer: C

Rationale: The yolk sac is an extraembryonic membrane that plays a significant role in the early development of the embryo. One of its functions is to produce blood cells until the organs are mature enough to take over this function. This process occurs during the early stages of prenatal development to support the growing embryo before it can sustain itself independently.

2. Dr. Langley's work is devoted to understanding constancy and change throughout the lifespan. Dr. Langley's field of study is __________.

• A. genetics
• B. clinical psychology
• C. adolescent development
• D. developmental science

Correct answer: D

Rationale: Dr. Langley's work being focused on understanding constancy and change throughout the lifespan aligns with the field of developmental science, which studies how individuals grow and change from birth through old age. This field encompasses the study of physical, cognitive, social, emotional, and other aspects of development across the lifespan. Choice A, genetics, primarily focuses on the study of genes, heredity, and genetic variation, which is not directly related to understanding constancy and change throughout the lifespan. Choice B, clinical psychology, concentrates on the diagnosis and treatment of mental, emotional, and behavioral disorders rather than the broader study of development across the lifespan. Choice C, adolescent development, is more specific and limited in scope compared to the comprehensive study of development across the entire lifespan, which is the focus of developmental science.

3. Newborns of smoking mothers __________.

• A. are more attentive to sounds
• B. display more muscle tension
• C. less often have colic
• D. are less excitable when visually stimulated Answer: B Page Ref: 84 Skill Level: Understand known or suspected teratogens. Copyright © 2018 Laura E. Berk. All Rights Reserved. 12 Test Bank for Berk, Development Through the Lifespan, 7e Topic: Prenatal Environmental Influences Difficulty Level: Moderate

Correct answer: B

Rationale: Newborns of smoking mothers display more muscle tension. This is because nicotine in cigarettes can lead to increased muscle tension in babies, which can affect their physical development and potentially lead to future health issues. This is one of the negative effects of smoking during pregnancy on the developing fetus.

4. Which Apgar criterion can be more difficult to apply to newborns of all races?

• A. pink color
• B. reflex irritability
• C. limp muscle tone
• D. strong breathing

Correct answer: D

Rationale: Among the Apgar criteria, the pink color (choice A), reflex irritability (choice B), and limp muscle tone (choice C) are relatively easy to assess in newborns of all races. However, the criterion that can be more difficult to apply to newborns of all races is strong breathing (choice D). This is because evaluating the strength of a newborn's breathing can be more subjective and require careful observation. Unlike the other criteria that have more visible and objective indicators, assessing the strength of breathing might vary based on the observer's interpretation, making it more challenging to apply universally.

5. Which of the following is the best available predictor of infant survival and healthy development?

• A. Birth length
• B. Combined Apgar score
• C. Delivery date
• D. Birth weight

Correct answer: D

Rationale: The correct answer is 'Birth weight.' Birth weight is a crucial indicator of an infant's chances of survival and well-being. Low birth weight is associated with various health risks and developmental challenges. Birth length (choice A) is not as significant in predicting infant outcomes as birth weight. The Combined Apgar score (choice B) is a measure of the newborn's health status at birth, not a predictor of long-term survival and development. Delivery date (choice C) is important for determining gestational age but is not as directly related to infant survival and healthy development as birth weight.

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