ATI RN
Human Growth and Development Final Exam Answers
1. In developing countries, the most readily available intervention for promoting the recovery of preterm babies is _________.
- A. hospitalization
- B. care in an isolette
- C. lying on a waterbed
- D. skin-to-skin 'kangaroo care'
Correct answer: D
Rationale: In developing countries, the most readily available intervention for promoting the recovery of preterm babies is skin-to-skin 'kangaroo care.' This involves direct skin-to-skin contact between the baby and a caregiver, typically the mother, which helps regulate the baby's body temperature, improve bonding, and support overall development. Kangaroo care can be easily implemented even in resource-limited settings and has been shown to have positive effects on preterm infants' health outcomes. Choices A, B, and C are incorrect because hospitalization, care in an isolette, and lying on a waterbed are not specifically tailored interventions that address the unique needs of preterm babies in developing countries like kangaroo care does.
2. The third stage of labor lasts about __________.
- A. 5 to 10 minutes
- B. 20 to 50 minutes
- C. 4 to 6 hours
- D. 12 to 14 hours
Correct answer: A
Rationale: The correct answer is A: 5 to 10 minutes. The third stage of labor typically lasts about 5 to 10 minutes. This stage begins after the baby is born and ends when the placenta is delivered. It is the shortest stage of labor compared to the first and second stages. Choice B, 20 to 50 minutes, is incorrect as it is too long for the duration of the third stage. Choice C, 4 to 6 hours, and Choice D, 12 to 14 hours, are also incorrect as they are significantly longer than the actual duration of the third stage of labor.
3. By using which method of assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups?
- A. sequential
- B. random
- C. systematic
- D. correlational
Correct answer: B
Rationale: By using random assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups. Random assignment helps reduce the likelihood of bias in the selection process and ensures that any differences between groups are due to the treatment and not pre-existing group differences. Sequential, systematic, and correlational assignment methods do not provide the same level of assurance in distributing participants' characteristics equally across treatment groups.
4. Fraternal twins are ____________.
- A. genetically identical
- B. no more alike than ordinary siblings
- C. less common than other types of multiple offspring
- D. less likely with each additional birth
Correct answer: B
Rationale: The correct answer is B. Fraternal twins are no more alike than ordinary siblings because they share about 50% of their genes, just like other siblings. Choice A is incorrect as fraternal twins are not genetically identical. Choice C is incorrect as fraternal twins are actually the most common type of multiple offspring. Choice D is incorrect as the likelihood of fraternal twins is not affected by the number of births a mother has had.
5. During the period of the embryo, the __________ becomes the __________.
- A. mesoderm; nervous system, lungs, internal organs, and skin
- B. chorion; endocrine system, muscles, placenta, and skeleton
- C. ectoderm; circulatory system, skin, skeleton, and internal organs
- D. endoderm; digestive system, lungs, urinary tract, and glands Answer: D Page Ref: 78 Skill Level: Remember Topic: Prenatal Development Difficulty Level: Moderate
Correct answer: D
Rationale: During the period of the embryo, the endoderm becomes the digestive system, lungs, urinary tract, and glands. The endoderm is one of the primary germ layers that give rise to various internal organs in the developing embryo. It plays a crucial role in the formation of organs such as the digestive system, respiratory system, and glandular structures.
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