Nokea
Why are neonates predisposed to problems with thermoregulation?
- A. Renal function is not fully developed
- B. Flexed posture favors heat loss
- C. A large body surface area favors heat loss to the environment
- D. A thick layer of subcutaneous fat provides excellent insulation
Correct Answer: C
Rationale: Newborns have a large surface area relative to their body weight, making them more susceptible to heat loss and requiring careful thermoregulation. Choice A is incorrect because renal function is not directly related to thermoregulation. Choice B is incorrect because a flexed posture actually helps reduce heat loss by minimizing the surface area exposed to the environment. Choice D is incorrect because neonates have limited subcutaneous fat, which contributes to their susceptibility to heat loss.
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A child is admitted to the hospital with acute renal failure. The parents ask about the prognosis for acute renal failure. The nurse's response should be based on which statement about acute renal failure?
- A. Children with acute renal failure will have to take prophylactic antibiotics for life.
- B. Acute renal failure always leads to chronic renal failure.
- C. Acute renal failure may be reversible.
- D. All children with acute renal failure will eventually need a kidney transplant.
Correct Answer: C
Rationale: The correct answer is C: Acute renal failure in children is often reversible, especially when the underlying cause is identified and treated promptly. It does not always lead to chronic renal failure or the need for a kidney transplant. Choice A is incorrect as prophylactic antibiotics for life are not a standard treatment for acute renal failure. Choice B is incorrect as acute renal failure does not always progress to chronic renal failure. Choice D is incorrect as not all children with acute renal failure will eventually require a kidney transplant.
The parents of a young child ask the nurse for suggestions about discipline. When discussing the use of time-outs, which should the nurse include?
- A. Send the child to his or her room if the child has one.
- B. A general rule for length of time is 1 hour per year of age.
- C. Select an area that is safe and nonstimulating, such as a hallway.
- D. If the child cries, refuses, or is more disruptive, try another approach.
Correct Answer: C
Rationale: Time-outs should be in a safe, nonstimulating area, with the length typically being 1 minute per year of the child's age, not 1 hour.
Evidence-based practice (EBP), a decision-making model, is best described as which?
- A. Using information in textbooks to guide care
- B. Combining knowledge with clinical experience and intuition
- C. Using a professional code of ethics as a means for decision-making
- D. Gathering all evidence that applies to the child's health and family situation
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which laboratory value at the time of diagnosis should the nurse anticipate would determine the worst prognosis for a child with leukemia?
- A. Slow response to chemotherapy
- B. Platelets of 150,000/mcL
- C. Leukocytes less than 10,000/mcL
- D. Leukocytes of 275,000/mcL
Correct Answer: D
Rationale: A high white blood cell count (leukocytes of 275,000/mcL) at diagnosis is associated with a worse prognosis in leukemia because it indicates a more aggressive disease with a higher tumor burden. Slow response to chemotherapy (choice A) is a consequence of the aggressive disease and not a determining factor at diagnosis. Platelets of 150,000/mcL (choice B) and leukocytes less than 10,000/mcL (choice C) are within normal ranges and not indicative of a worse prognosis in leukemia.
At what age is the first dose of the hepatitis A vaccine recommended to be started?
- A. 1 year
- B. 1 month
- C. 12 years
- D. It is not recommended at any age
Correct Answer: A
Rationale: The correct answer is A: 1 year. The hepatitis A vaccine is now recommended for all children starting at age 1 year (i.e., 12 to 23 months). This is due to the recognition of hepatitis A as a significant child health problem, especially in areas with high infection rates. The virus is primarily spread through fecal-oral transmission, person-to-person contact, ingestion of contaminated food or water, and rarely through blood transfusion. Administering the first dose at 1 year helps protect children from this infection. Choices B and C are incorrect as the vaccine is not recommended at 1 month or 12 years. Choice D is also incorrect as the hepatitis A vaccine is recommended at a specific age to prevent the infection.