Nursing Elites

1. During Irina's first week of pregnancy, __________.

• A. heart muscles begin to develop
• B. the zygote multiplies and forms a blastocyst
• C. a primitive brain and spinal cord appear
• D. the embryo can move

Correct answer: B

Rationale: During the first week of pregnancy, the zygote (fertilized egg) undergoes rapid cell divisions and forms a blastocyst. This is a crucial stage where the cells differentiate and specialize, setting the foundation for the development of the embryo. It is during this time that the zygote implants itself into the uterine wall, initiating the process of pregnancy. Choices A, C, and D are incorrect because during the first week of pregnancy, the focus is on the initial development and multiplication of the zygote, not on the development of heart muscles, a primitive brain and spinal cord, or the embryo's ability to move.

2. A childbirth leave of __________ predicts favorable maternal physical and mental health, supportive marital interaction, and sensitive caregiving.

• A. 6 weeks
• B. 8 weeks
• C. 10 weeks
• D. 12 weeks or more

Correct answer: D

Rationale: Research indicates that a childbirth leave of 12 weeks or more leads to favorable outcomes for maternal physical and mental health, supportive marital interaction, and sensitive caregiving. This extended period of leave allows mothers to recover physically, adjust psychologically, and establish strong bonds with their newborn, which ultimately benefits the whole family. Choices A, B, and C are incorrect as they do not provide the optimal duration needed for mothers to experience the full range of benefits associated with an extended childbirth leave.

3. Low-level radiation, resulting from industrial leakage or medical X-rays, __________.

• A. is harmful only when combined with other teratogens
• B. can increase the risk of childhood cancer
• C. rarely causes lasting damage
• D. is safe during the last trimester

Correct answer: B

Rationale: Low-level radiation, whether from industrial leakage or medical X-rays, can increase the risk of childhood cancer by potentially damaging the developing fetus's cells. Even though the risk is relatively low, it is still a significant concern that should be acknowledged and monitored closely, especially during prenatal development. Choice A is incorrect as low-level radiation can still be harmful on its own without the need to be combined with other teratogens. Choice C is incorrect because low-level radiation exposure can indeed cause lasting damage, especially in the context of childhood cancer risk. Choice D is incorrect because low-level radiation exposure, even during the last trimester, can pose risks to the developing fetus and is not considered entirely safe.

4. Which research method was borrowed from the field of anthropology?

• A. ethnography
• B. clinical interview
• C. structured interview
• D. systematic observation

Correct answer: A

Rationale: The correct answer is A: ethnography. Ethnography is a research method borrowed from the field of anthropology. It involves observing and documenting behaviors and interactions in a naturalistic setting. This method allows researchers to gain insight into the cultural context and practices of a group through direct observation and participation. Choices B, C, and D are incorrect because clinical interviews, structured interviews, and systematic observations are research methods used in different contexts and fields, not borrowed specifically from anthropology.

5. Which individual is most likely to experience the greatest percentage of REM sleep?

• A. Sammy, a preschool child
• B. Jake, a full-term newborn
• C. Sarah, a teenager
• D. Cheryl, a preterm newborn Answer: D Page Ref: 104 Copyright © 2018 Laura E. Berk. All Rights Reserved. 32 Test Bank for Berk, Development Through the Lifespan, 7e Skill Level: Apply Topic: The Newborn Baby’s Capacities Difficulty Level: Moderate

Correct answer: D

Rationale: Preterm newborns, like Cheryl, experience a higher percentage of REM sleep compared to full-term newborns. This is because REM sleep plays a critical role in brain development, and preterm infants have an increased need for brain development due to their early arrival. Therefore, Cheryl, as a preterm newborn, is most likely to experience the greatest percentage of REM sleep among the individuals listed.

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