ATI RN
Human Growth and Development Final Exam
1. By the end of Greta's first month of pregnancy, her embryo __________.
- A. can sense its world
- B. is about ¼ inch long
- C. can suck its thumb
- D. can curl its toes
Correct answer: B
Rationale: By the end of Greta's first month of pregnancy, her embryo is about ¼ inch long. During the first month of pregnancy, the embryo is in the very early stages of development, and its size is typically around ¼ inch as it continues to grow and develop in the uterus. Choices A, C, and D are incorrect because sensory abilities like sensing the world, sucking thumb, and curling toes develop later in the pregnancy as the embryo progresses through different stages of development.
2. When Mateo was born prematurely to Yvonne, a cocaine addict, what can his caregivers expect?
- A. He will be very attentive to the environment
- B. His cries will be abnormally shrill and piercing
- C. He will overcome the harmful effects of drug exposure by age 3
- D. His motor development will be especially rapid during the first year
Correct answer: B
Rationale: Mateo, being born prematurely to a cocaine-addicted mother, is at risk for several health issues. One common effect of prenatal drug exposure is a higher likelihood of sensory and regulatory problems, such as having abnormally shrill and piercing cries. This is a potential outcome that Mateo's caregivers can expect due to his circumstances. Choice A is incorrect as there is no direct correlation between being born prematurely to a cocaine-addicted mother and being very attentive to the environment. Choice C is incorrect as overcoming harmful effects of drug exposure by age 3 is overly optimistic and may not be the case for all children exposed to drugs prenatally. Choice D is incorrect as rapid motor development is not typically associated with prenatal drug exposure.
3. 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.
4. __________ coping is largely emotion-focused and self-blaming, impulsive, or escapist.
- A. Avoidant
- B. Ineffective
- C. Problem-focused
- D. Flexible
Correct answer: A
Rationale: The correct answer is A: 'Avoidant.' Avoidant coping refers to strategies that involve avoiding the problem and focusing more on emotions. This type of coping mechanism can often lead to negative outcomes as individuals may engage in self-blaming, impulsive behaviors, or seek escapist routes rather than addressing the issue directly. Choice B, 'Ineffective,' is a broad term and does not specifically capture the characteristics described in the question. Choice C, 'Problem-focused,' is the opposite of avoidant coping as it involves actively addressing the issue at hand. Choice D, 'Flexible,' does not align with the description provided, as flexibility in coping involves adapting strategies based on the situation, not necessarily being emotion-focused, self-blaming, impulsive, or escapist.
5. Jalynn is in the last half of the first month of her pregnancy. Which of the following is developing the fastest?
- A. circulatory system
- B. endocrine system
- C. nervous system
- D. skin
Correct answer: C
Rationale: During the last half of the first month of pregnancy, the nervous system develops the fastest among the options provided. This rapid development of the nervous system is crucial for the overall growth and functioning of the fetus. The nervous system includes the brain and spinal cord, which are essential for various bodily functions and will continue to develop throughout the pregnancy. The circulatory system, although important, does not develop at the fastest rate during this stage. The endocrine system and skin also play significant roles in the development of the fetus but are not the systems that develop the fastest in the last half of the first month of pregnancy.
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