Author Question: The perinatal nurse teaches new parents about the stages of infant behavior. What information does ... (Read 54 times)

Zulu123 · **on:** Jun 28, 2018

The perinatal nurse teaches new parents about the stages of infant behavior. What information does the nurse provide? (Select all that apply.)

A.
Excessive motor activity occurs in the wide-awake state.
B.
Irregular respirations are common in REM sleep.
C.
Jerking movements may accompany crying.
D.
Stimulation decreases activity in the active alert state.
E.
When stimuli are removed, the baby falls asleep.

Question 2

A pregnant woman at 25 weeks of gestation visits the prenatal clinic for a checkup. She asks the nurse how the baby is able to breathe on his own following childbirth.

The nurse plans to explain the factors that influence the initiation of the newborn's first breath, including which of the following?
A.
A quiet environment
B.
Drastic change in temperature
C.
Hypoxia
D.
Initiation of breastfeeding
E.
Recoil of the chest wall after delivery of the trunk

Jayson · **Reply #1 on:** Jun 28, 2018

Answer to Question 1

ANS: B, C, E
Infant behavior is divided into sleep and awake states. REM sleep is accompanied by irregular respirations, visible REM activity under closed eyelids, and irregular sucking motions. Jerking movements may occur during crying as the infant discharges energy. When offending stimulation is removed, infants tend to fall back to sleep. Quiet motor activity occurs during the wide-awake state. Stimulation increases motor activity in the active alert state.

Answer to Question 2

ANS: B, C, E
Hypoxia causes blood oxygen levels (PO2) and pH to drop. Subsequently, blood carbon dioxide levels (PCO2) begin to rise and prompt the respiratory center within the medulla to initiate breathing. Once the fetus moves from the intrauterine to the extrauterine environment, the drastic change in temperature helps to stimulate the initiation of respirations, because sensors in the skin respond to the temperature changes and send signals to the respiratory system in the brain. Recoil of the chest wall after delivery of the neonate's trunk creates a negative intrathoracic pressure, which facilitates a small, passive inspiration of air. An extremely sensory-overloaded environment filled with a multitude of tactile, visual, and auditory stimuli aids in the initiation of respirations.
A quiet environment and breastfeeding do not assist in the initiation of independent respiratory function.