Nursing Elites

1. 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: Neonates have a large surface area relative to their weight, which makes them prone to heat loss to the environment, leading to thermoregulation issues. The underdeveloped kidney affecting urine concentration (Choice A) is unrelated to the thermal regulation process. While a flexed posture can help retain heat (Choice B), it does not outweigh the impact of the large body surface area in neonates. Although subcutaneous fat (Choice D) provides insulation, in neonates, the large body surface area is more significant in contributing to heat loss than the fat's insulating properties.

2. What is the primary symptom of congenital diaphragmatic hernia in a newborn?

• A. Cyanosis
• B. Bradycardia
• C. Absent breath sounds
• D. Tachypnea

Correct answer: C

Rationale: Absent breath sounds on the affected side are a primary symptom of congenital diaphragmatic hernia. Cyanosis, bradycardia, and tachypnea may also be present but are not the primary symptom. Cyanosis is a bluish discoloration of the skin due to poor oxygenation, bradycardia is a slower than normal heart rate, and tachypnea is rapid breathing.

3. Surgery is performed on a child to correct cryptorchidism. The parents understand the reason for the surgery if they tell the nurse this was done to do what?

• A. Prevent damage to the undescended testicle.
• B. Prevent urinary tract infections.
• C. Prevent prostate cancer.
• D. Prevent an inguinal hernia.

Correct answer: A

Rationale: The primary reason for correcting cryptorchidism through surgery is to prevent damage to the undescended testicle, which can lead to infertility and increase the risk of testicular cancer. Prevention of UTIs and prostate cancer are not the primary concerns in this context.

4. The school nurse is evaluating the number of school-age children classified as obese. The nurse recognizes that the percentile of body mass index that classifies a child as obese is greater than which?

• A. 50th percentile
• B. 75th percentile
• C. 80th percentile
• D. 95th percentile

Correct answer: D

Rationale: A child with a BMI greater than the 95th percentile is classified as obese, according to standard growth charts used in pediatric practice.

5. What is the best initial intervention for a child experiencing moderate dehydration?

• A. Administer IV fluids
• B. Encourage oral rehydration
• C. Monitor vital signs
• D. Provide clear fluids

Correct answer: B

Rationale: The correct answer is B: Encourage oral rehydration. Oral rehydration is the first-line treatment for moderate dehydration in children. It helps restore fluid balance and electrolyte levels. Administering IV fluids (Choice A) is usually reserved for severe cases of dehydration where oral rehydration is not feasible or ineffective. Monitoring vital signs (Choice C) is important but should not replace the immediate need for rehydration. Providing clear fluids (Choice D) may not contain the necessary electrolytes required for effective rehydration.

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