The nurse is teaching a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?
- A. Myelination continues into adolescence and beyond.
- B. The process occurs in a cephalocaudal (head-to-toe) pattern.
- C. Myelination decreases the speed of nerve impulses.
- D. Myelination decreases the specificity of nerve impulses.
Correct Answer: B
Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.
You may also like to solve these questions
A parent tearfully tells a nurse, 'They think our child is developmentally delayed. We are thinking about investigating a preschool program for cognitively impaired children.' What is the nurse's most appropriate response?
- A. Praise the parent for the decision and encourage the plan.
- B. Ask for more specific information related to the developmental delays.
- C. Advise the parent to have the healthcare provider help choose an appropriate program.
- D. Explain that this may be a premature action and the developmental delays could disappear.
Correct Answer: B
Rationale: The most appropriate response in this situation is to ask for more specific information related to the developmental delays. By seeking additional details, the nurse can better understand the child's needs and provide tailored guidance and support to the parent. Praising the parent (Choice A) before fully grasping the situation may not be beneficial. Advising the parent to involve the healthcare provider in selecting a program (Choice C) is premature without a comprehensive understanding of the child's developmental delays. Explaining that the delays might resolve on their own (Choice D) is inappropriate as it dismisses the parent's concerns and the necessity for timely and appropriate interventions.
A healthcare provider is assessing a child with suspected Kawasaki disease. What clinical manifestation is the healthcare provider likely to observe?
- A. Generalized rash
- B. Peeling skin on the hands and feet
- C. High fever
- D. Low-grade fever
Correct Answer: B
Rationale: Peeling skin on the hands and feet is a characteristic clinical manifestation of Kawasaki disease, known as desquamation. This occurs during the convalescent phase of the illness. While Kawasaki disease is associated with a high fever, which is a common early sign, and can also present with other symptoms like conjunctivitis, mucous membrane changes, and lymphadenopathy, the peeling skin on the hands and feet is a classic feature that distinguishes Kawasaki disease from other conditions. Generalized rash is not a specific hallmark of Kawasaki disease, and low-grade fever is not typically associated with this condition. Therefore, the correct answer is B, peeling skin on the hands and feet, which is a key feature of Kawasaki disease.
The nurse is reviewing the laboratory test results of a child diagnosed with disseminated intravascular coagulation (DIC). What would the nurse interpret as indicative of this disorder?
- A. Shortened prothrombin time
- B. Increased fibrinogen level
- C. Positive fibrin split products
- D. Increased platelets
Correct Answer: C
Rationale: Positive fibrin split products indicate disseminated intravascular coagulation (DIC), a condition characterized by the widespread formation of blood clots throughout the body. In DIC, clotting factors are consumed, leading to increased fibrin split products. A shortened prothrombin time (Choice A) is not typically seen in DIC as it indicates faster blood clotting, which is not consistent with the pathophysiology of DIC. An increased fibrinogen level (Choice B) is also not a characteristic finding in DIC, as fibrinogen levels may be decreased due to consumption in the formation of clots. Increased platelets (Choice D) are not typically observed in DIC; instead, thrombocytopenia (decreased platelet count) is more common due to their consumption in clot formation.
A parent tearfully tells a nurse, 'They think our child is developmentally delayed. We are thinking about investigating a preschool program for cognitively impaired children.' What is the nurse's most appropriate response?
- A. Praise the parent for the decision and encourage the plan.
- B. Ask for more specific information related to the developmental delays.
- C. Advise the parent to have the healthcare provider help choose an appropriate program.
- D. Explain that this may be a premature action and the developmental delays could disappear.
Correct Answer: B
Rationale: The most appropriate response for the nurse in this situation is to ask for more specific information related to the developmental delays. By seeking additional details, the nurse can better understand the situation, offer appropriate support, and provide guidance tailored to the child's specific needs. Praising the parent or encouraging the plan without understanding the full context may not be beneficial. Advising the parent to have the healthcare provider help choose a program assumes the parent has not already involved the healthcare provider, which may not be the case. Explaining that the developmental delays could disappear is not appropriate as it may give false hope or minimize the parent's concerns.
What intervention best meets a major developmental need of a newborn in the immediate postoperative period?
- A. Giving a pacifier to the newborn
- B. Placing a mobile over the newborn's crib
- C. Providing the newborn with a soft, cuddly toy
- D. Warming the newborn's formula before feeding
Correct Answer: A
Rationale: The correct answer is giving a pacifier to the newborn. Sucking is a natural reflex and a source of comfort for newborns, especially postoperatively. Offering a pacifier can help meet their developmental needs by providing comfort and a soothing mechanism. Placing a mobile over the crib (choice B) may provide visual stimulation but does not directly address the newborn's developmental needs for comfort and self-soothing. Providing a soft, cuddly toy (choice C) may offer some comfort but may not be as effective in meeting the specific developmental need for sucking postoperatively. Warming the newborn's formula before feeding (choice D) relates more to feeding practices than directly addressing a major developmental need in the postoperative period.