The nurse is describing the maturation of various organ systems during toddlerhood to the parents. What would the nurse correctly include in this description?
Myelination of the brain and spinal cord is complete at about 24 months.
Alveoli reach adult numbers by 3 years of age.
Urine output in a toddler typically averages approximately 30 mL/hour.
Toddlers typically have strong abdominal muscles by the age of 2.
The Correct Answer is A
A. Myelination of the brain and spinal cord is a continuous process that begins during fetal development and continues through childhood and adolescence. While significant myelination
occurs during infancy and toddlerhood, it is not complete by 24 months. However, substantial progress in myelination does occur during the toddler years, contributing to the development of motor and cognitive skills.
B. Alveoli reach adult numbers by 3 years of age. This statement is incorrect. Alveoli continue to develop and increase in number after birth, reaching adult numbers around adolescence, not by 3 years of age.
C. Urine output in a toddler typically averages approximately 30 mL/hour. This statement is incorrect. Toddlers typically have higher urine output rates than adults due to their smaller
bladder capacity and higher metabolic rate. The average urine output for a toddler is around 1-2 mL/kg/hour, which varies depending on factors such as hydration status and activity level.
D. Toddlers typically have strong abdominal muscles by the age of 2. This statement is incorrect. While toddlers may develop some abdominal muscle strength through activities such as walking and climbing, their muscle tone and strength are still developing and may not be as strong as in older children or adults.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "Activity will increase the respiratory rate": While activity can indeed affect respiratory rate, counting for a full minute allows for a more accurate assessment of the newborn's baseline respiratory rate, regardless of activity level.
B. "The rate and rhythm of breath are irregular in newborns": This statement reflects an understanding of why a complete minute is necessary for counting the respiratory rate in newborns. Newborns often have irregular breathing patterns, so counting for a full minute helps ensure an accurate assessment of their respiratory rate.
C. "Newborns are abdominal breathers": While newborns primarily use their diaphragm to
breathe (abdominal breathing), this fact alone does not explain why the respiratory rate should be counted for a full minute.
D. "Newborns do not expand their lungs fully with each respiration": While newborns may not fully expand their lungs with each breath, this factor is not the primary reason for counting the respiratory rate for a full minute.
Correct Answer is D
Explanation
A. "I can fit my hand between the baby and the car seat harness."
This statement indicates that the harness may not be properly snug against the infant's body, which could compromise safety.
B. "Our car seat is front-facing in the back seat."
For a 6-month-old infant, the car seat should be rear-facing to provide optimal safety in the event of a crash. Front-facing seats are typically used for older children.
C. "The car seat is rear-facing in the front passenger seat."
Rear-facing car seats should never be placed in the front passenger seat, especially if the car is equipped with airbags. The back seat is the safest location for a car seat.
D. "Our car seat is an infant model and is anchored in the car."
This statement indicates that the parent understands the importance of using an appropriate car seat for the infant's age and size and that the seat is properly installed and secured in the vehicle.
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