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
Legg-Calve-Perthes disease, also known as Perthes disease, is a childhood condition that affects the hip joint. It occurs due to a disruption in the blood supply to the femoral head (epiphysis), which can lead to bone death (avascular necrosis) and subsequent deformity of the femoral head.
It is essential for parents to understand that Legg-Calve-Perthes disease is not an acute illness that lasts for a short duration (Option A). It is a chronic condition that typically progresses over a period of months or years.
stating that it is caused by a virus, in (option C) is incorrect. The exact cause of Legg-Calve- Perthes disease is not fully understood, but it is not caused by a viral infection. It is believed to be related to multifactorial factors, including genetic and vascular factors.
stating that it primarily affects adults, in (option D) is incorrect. Legg-Calve-Perthes disease predominantly affects children, typically between the ages of 4 and 8 years old, during the period of rapid growth.
Correct Answer is B
Explanation
The term used to describe an abnormally increased convex angulation in the curvature of the thoracic spine, which appears as a "hump back" or rounded upper back, is kyphosis.
Kyphosis refers to an excessive forward rounding or curvature of the thoracic spine, leading to a visible hump-like appearance. It can result from various causes, including poor posture, congenital abnormalities, osteoporosis, or certain medical conditions.
ankylosis in (option A), refers to the abnormal fusion or immobility of a joint, typically due to inflammation or injury.
Lordosis, in (option C) refers to an excessive inward curvature of the lower back, causing the abdomen and buttocks to protrude.
, scoliosis in (option D), refers to an abnormal sideways curvature of the spine, typically in an "S" or "C" shape. It is different from kyphosis, which primarily affects the thoracic spine and results in a rounded upper back.
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