A nurse is explaining to parents how the central nervous system of a child differs from that of an adult. Which statement accurately describes these differences?
The brain of a term infant weighs less than half of the weight of the adult brain.
The infant has 150 mL of CSF compared with 50 mL in the adult.
Coordination and fine motor skills develop as myelinization of peripheral nerves progresses.
Papilledema is a common manifestation of ICP in the very young child.
The Correct Answer is A
The statement that accurately describes the difference between the central nervous system (CNS) of a child and an adult is option A. The brain of a term infant weighs less than half of the weight of the adult brain. The brain undergoes significant growth and development during childhood and continues to develop until early adulthood. At birth, the brain is only a fraction of its adult weight, and it continues to grow and mature over time.
infant has 150 mL of cerebrospinal fluid (CSF) compared with 50 mL in the adult in (option B), is incorrect. The volume of CSF in the CNS is not a significant difference between children and adults.
coordination and fine motor skills develop as myelination of peripheral nerves progresses in (option C), is an incorrect statement. Myelination is an ongoing process that occurs throughout childhood and contributes to the development of coordination and fine motor skills.
papilledema is a common manifestation of increased intracranial pressure (ICP) in the very young child in (option D), is not correct. Papilledema refers to swelling of the optic disc and is not commonly seen in very young children. Signs of increased ICP in young children may present differently compared to adults and can include altered mental status, irritability, vomiting, and changes in vital signs.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The anatomy of the urinary tract can influence the susceptibility to urinary tract infections (UTIs). In the case of young girls, their urethra is shorter compared to adult females, which increases the likelihood of bacteria reaching the bladder. The shorter urethra provides a shorter distance for bacteria to travel from the outside of the body to the bladder, making it easier for bacteria to enter and cause an infection.
Prostatic secretions in males in (option A) is incorrect because they are not directly related to the increased susceptibility to UTIs. Prostatic secretions can, however, contribute to conditions like prostatitis, which is an inflammation of the prostate gland that can be associated with urinary symptoms and sometimes bacterial infections.
Frequent emptying of the bladder in (option C) is incorrect because it is generally considered a healthy practice as it helps to flush out any potential bacteria in the urinary tract. It does not predispose the urinary tract to infection.
Increased fluid intake in (option D) is incorrect because it is generally encouraged to maintain proper hydration and urinary tract health. It can help to flush out bacteria from the urinary system, reducing the risk of infection.
While these factors may have implications for urinary tract health, the specific factor that predisposes the urinary tract to infection, particularly in young girls, is the short urethra (B).
Correct Answer is D
Explanation
In this scenario, the child's increased urination after a serious motor vehicle crash may
indicate a potential issue with fluid balance. Monitoring the child's intake and output is the
priority action for the nurse. This involves accurately measuring and recording the fluids the
child consumes (intake) and the fluids the child eliminates through urine, sweat, and other
sources (output). By closely monitoring the child's intake and output, the nurse can assess the
child's fluid status and identify any abnormalities or imbalances that may require further
intervention.
Restrict dietary sodium intake in (option A) is incorrect because restricting dietary sodium
intake, may be necessary in certain situations, such as if the child has a known sodium
imbalance or hypertension. However, it is not the priority action in this scenario.
Assess the daily serum sodium level in (option B) is incorrect because assessing the daily
serum sodium level, is important to evaluate the child's electrolyte balance. However, it is not
the priority action compared to monitoring the child's intake and output.
Weigh the child daily in (option C) is incorrect because weighing the child daily, is a useful
measure to assess changes in fluid balance. However, it is not the priority action in this
scenario compared to monitoring the child's intake and output, which provides real-time
information on fluid balance.
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