ATI RN
Human Growth and Development Exam 1
1. A baby born between the seventh and eighth months of pregnancy __________.
- A. is just as healthy as a full-term baby
- B. usually needs oxygen assistance to breathe
- C. only has about a 10 percent survival rate
- D. is considered small-for-date
Correct answer: B
Rationale: A baby born between the seventh and eighth months of pregnancy is considered premature. Premature babies are born before they are fully developed and may need assistance with breathing, including oxygen. They are at a higher risk for complications compared to full-term babies. Choice A is incorrect because premature babies are at a higher risk for health issues compared to full-term babies. Choice C is incorrect as modern medical advancements have significantly increased the survival rate of premature babies. Choice D is incorrect as being small-for-date does not solely depend on the gestational age at birth.
2. T. Berry Brazelton's Neonatal Behavioral Assessment Scale (NBAS) evaluates a newborn's __________.
- A. risk for developmental problems
- B. ability to comply with parental commands and responsiveness to touch
- C. reflexes, muscle tone, state changes, and responsiveness to stimulation
- D. heart rate, respiratory effort, reflex irritability, muscle tone, and color
Correct answer: C
Rationale: T. Berry Brazelton's Neonatal Behavioral Assessment Scale (NBAS) evaluates a newborn's reflexes, muscle tone, state changes, and responsiveness to stimulation. This assessment helps healthcare providers understand the newborn's behavioral responses and capabilities in various areas, providing valuable insights into their overall development and well-being. Choices A, B, and D are incorrect because the NBAS focuses on assessing the newborn's behavioral responses and capabilities, rather than their risk for developmental problems, compliance with commands, or physiological parameters like heart rate and respiratory effort.
3. An experimental design __________.
- A. allows researchers to gather information in natural life circumstances without altering the participants' experiences
- B. looks at relationships between participants' characteristics and their behavior or development
- C. permits inferences about cause and effect because researchers evenhandedly assign people to treatment conditions
- D. has one major limitation: researchers cannot infer cause and effect
Correct answer: C
Rationale: An experimental design permits inferences about cause and effect because researchers evenhandedly assign people to treatment conditions. This means that researchers can manipulate certain variables and observe the effects on participants, allowing them to determine causation between variables. This is a key strength of experimental research designs. Choices A, B, and D are incorrect because they do not accurately describe the primary purpose or strength of experimental designs. Experimental designs do not focus on gathering information in natural life circumstances (A), looking at relationships between characteristics and behavior (B), or have the limitation of not being able to infer cause and effect (D).
4. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within five seconds by __________.
- A. a burst of motor activity
- B. a period of sleep
- C. a rise in Liz's heart rate
- D. a drop in Liz's body temperature
Correct answer: A
Rationale: A rise in the baby's heart rate during pregnancy is usually followed within five seconds by a burst of motor activity. This indicates that the baby is responding to stimuli and is an important sign of healthy fetal development. A period of sleep, a rise in Liz's heart rate, or a drop in Liz's body temperature are not typically immediate responses to changes in the baby's heart rate. Sleep is less likely to be a direct response to changes in heart rate, Liz's heart rate is independent of the baby's heart rate changes, and a drop in Liz's body temperature is not a common immediate response to fetal heart rate changes.
5. If pregnancy does not occur, the corpus luteum shrinks, and the __________.
- A. cells begin to duplicate
- B. one-celled zygote multiplies and forms a blastocyst
- C. germinal period lasts only about two weeks
- D. lining of the uterus is discarded
Correct answer: D
Rationale: If pregnancy does not occur, the corpus luteum will shrink. As a result, the lining of the uterus is discarded through the process of menstruation. This shedding of the uterine lining is what causes menstrual bleeding. Choices A, B, and C are incorrect because they do not describe the physiological response of the body when pregnancy does not occur. The corpus luteum shrinking and the subsequent shedding of the uterine lining are part of the menstrual cycle, not processes related to cell duplication, zygote multiplication, or the duration of the germinal period.
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