ATI RN
Human Growth and Development Exam 1
1. Katie wonders when she will first be able to hear her fetus's heartbeat through a stethoscope. You tell her that this should happen by the __________.
- A. fourth week of pregnancy
- B. third month of pregnancy
- C. end of the second trimester
- D. beginning of the third trimester
Correct answer: B
Rationale: The correct answer is the third month of pregnancy (choice B). During the third month of pregnancy, which is around 9-12 weeks, a fetal heartbeat can typically be heard using a stethoscope. This is an exciting milestone for expectant parents as it provides reassurance about the baby's well-being. Choices A, C, and D are incorrect because by the fourth week of pregnancy, the fetal heartbeat is not usually detectable with a stethoscope. The end of the second trimester and the beginning of the third trimester are too late in the pregnancy timeline for this milestone.
2. Which statement is supported by research on newborn taste preferences?
- A. Newborns cannot distinguish basic tastes.
- B. Not until 4 months do babies prefer a salty taste to plain water.
- C. Newborns prefer the taste of formula to breast milk.
- D. Unlike adults, babies relax their facial muscles in response to sour tastes.
Correct answer: B
Rationale: Research on newborn taste preferences has found that not until around 4 months of age do babies start to show a preference for a salty taste over plain water. This indicates that newborns do have some ability to distinguish tastes, contrary to the statement in option A. The statement in option C that newborns prefer the taste of formula to breast milk is not supported by research on newborn taste preferences. Option D, stating that babies relax their facial muscles in response to sour tastes, is also not a supported statement regarding newborn taste preferences.
3. The influence of situational factors on moral judgments indicates that like Piaget's cognitive stages, Kohlberg's moral stages are __________.
- A. predictable and universal
- B. highly organized and sequential
- C. attained in a neat, stepwise fashion
- D. loosely organized and overlapping
Correct answer: D
Rationale: The correct answer is D. Kohlberg's moral stages are not strictly sequential but rather overlap and are more fluid, much like Piaget's cognitive stages. Choices A, B, and C are incorrect because Kohlberg's stages do not follow a neat, predictable, or highly organized pattern, as they can be revisited and experienced in varying orders.
4. Lanugo ________.
- A. permits food and oxygen to reach the organism
- B. provides the fetus a cushion against jolts caused by the mother's movements
- C. helps regulate the fetus's body temperature
- D. helps the vernix stick to the skin
Correct answer: D
Rationale: Lanugo helps the vernix stick to the skin. Vernix is a waxy substance that covers the fetus's skin during pregnancy. Lanugo is a fine, downy hair that helps to anchor the vernix to the skin, providing protection and nourishment to the developing fetus. Choices A, B, and C are incorrect as they do not accurately describe the role of lanugo in prenatal development.
5. Nine-month-old Avery can retrieve his ball when his mother hides it under a blanket. Avery has begun to master __________.
- A. the tertiary circular reaction
- B. reflexive schemes
- C. object permanence
- D. deferred imitation
Correct answer: C
Rationale: Avery demonstrating the ability to retrieve his ball hidden under a blanket indicates that he has started to understand object permanence. Object permanence is the concept that objects continue to exist even when they are out of sight. This milestone typically occurs around 8-12 months of age. The other choices are incorrect. Option A, the tertiary circular reaction, is related to Piaget's theory of sensorimotor development but does not specifically address object permanence. Reflexive schemes (Option B) refer to simple, reflex-like behaviors and are not directly linked to object permanence. Deferred imitation (Option D) involves the ability to imitate actions observed at an earlier time, which is a different developmental milestone compared to object permanence.
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