ATI RN
Human Growth and Development Exam 1
1. Lily weighed 8 pounds and was 21 inches long at birth. She was __________ than the average baby.
- A. heavier but shorter
- B. heavier and longer
- C. lighter but longer
- D. lighter and shorter
Correct answer: B
Rationale: Lily weighed 8 pounds and was 21 inches long at birth. Being both heavier and longer than average babies typically are at birth, Lily would be considered heavier and longer compared to the average baby. This makes choice B, 'heavier and longer,' the correct answer. Choices A, C, and D are incorrect because Lily was not shorter or lighter than the average baby at birth.
2. When Baby Ian is held horizontally on his back, he sometimes makes an “embracing” motion by arching his back, extending his legs, throwing his arms outward, and then bringing his arms in toward his body. Ian is demonstrating the __________.
- A. palmar grasp
- B. Moro reflex
- C. tonic neck reflex
- D. Babinski reflex
Correct answer: B
Rationale: Baby Ian is demonstrating the Moro reflex. The Moro reflex is a normal newborn reflex that occurs when a baby feels like they are falling or losing support. It is characterized by arching the back, extending the legs, throwing the arms outward, and then bringing the arms in toward the body. This reflex is a primitive survival instinct that typically disappears around 6 months of age. Choice A, palmar grasp, involves the baby's fingers closing around an object when it touches their palm. Choice C, tonic neck reflex, involves the baby assuming a fencing position when their head is turned to one side. Choice D, Babinski reflex, is characterized by the fanning out and curling of the baby's toes when the sole of the foot is stroked.
3. Maternal high blood glucose _________.
- A. can cause Rh factor incompatibility
- B. is linked to poorer memory in early childhood
- C. is linked to low birth weight
- D. can cause the mother's blood pressure to increase sharply
Correct answer: B
Rationale: Maternal high blood glucose is linked to poorer memory in early childhood. Research has shown that exposure to high levels of maternal blood glucose during pregnancy may negatively impact a child's memory development in early childhood. This highlights the importance of managing blood glucose levels during pregnancy for the health and development of the child. Choices A, C, and D are incorrect because they do not reflect the established link between maternal high blood glucose and poorer memory in early childhood. Rh factor incompatibility is related to blood type differences between the mother and the fetus, low birth weight can be linked to various factors other than maternal blood glucose, and sharp increases in the mother's blood pressure are not directly associated with maternal high blood glucose.
4. What is a major strength of the clinical interview?
- A. Makes comparing individuals' responses very easy
- B. Can provide a large amount of information in a fairly brief period
- C. Is directed toward understanding a culture or distinct social group
- D. Allows researchers to see the behavior of interest as it occurs in natural settings
Correct answer: B
Rationale: The major strength of the clinical interview is that it can provide a large amount of information in a fairly brief period. This allows researchers to gather detailed data about an individual's thoughts, feelings, and behaviors efficiently. Choice A is incorrect because the clinical interview focuses on gathering information from individuals rather than comparing their responses. Choice C is incorrect as clinical interviews are primarily aimed at understanding individuals rather than cultures or social groups. Choice D is incorrect as it describes a strength of naturalistic observations, not clinical interviews.
5. In the eighth month of pregnancy, what typically happens?
- A. fetal growth doubles
- B. neuron production increases
- C. the eyes, ears, nose, jaw, and neck form
- D. lanugo typically is shed
Correct answer: D
Rationale: In the eighth month of pregnancy, lanugo typically is shed. Lanugo is the fine, downy hair that covers a fetus's body to help regulate body temperature while in the womb. By the eighth month, many fetuses shed this hair as they prepare for birth. Choices A, B, and C are incorrect because fetal growth doubling, neuron production increasing, and the formation of eyes, ears, nose, jaw, and neck occur in earlier stages of pregnancy, not specifically in the eighth month.
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