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: 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.

2. Several types of seizures can occur in neonates. What is characteristic of clonic seizures?

• A. Apnea
• B. Tremors
• C. Extension of all four limbs
• D. Jerking that cannot be stopped by flexion of the affected limb

Correct answer: D

Rationale: Clonic seizures are characterized by slow, rhythmic, jerking movements that cannot be stopped by flexion of the affected limb. Therefore, the correct characteristic of clonic seizures is option D. Option A, apnea, is not characteristic of clonic seizures. Option B, tremors, does not describe clonic seizures accurately. Option C, extension of all four limbs, is not a typical feature of clonic seizures but rather seen in tonic seizures.

3. A child is admitted with renal failure. Which of these findings should the nurse expect?

• A. Decreased BUN
• B. Azotemia and oliguria
• C. Increased glomerular filtration rate (GFR)
• D. Polyuria and elevated creatinine clearance

Correct answer: B

Rationale: Azotemia (elevated BUN and creatinine) and oliguria (reduced urine output) are classic signs of renal failure, indicating impaired kidney function. In renal failure, the kidneys are unable to effectively filter waste products, leading to an increase in BUN and creatinine levels in the blood. Additionally, oliguria occurs due to decreased kidney function. Increased GFR (Choice C) is not expected in renal failure as it signifies improved kidney function, which is not the case in renal failure. Polyuria and elevated creatinine clearance (Choice D) are not typical findings in renal failure. Polyuria is more commonly associated with conditions like diabetes insipidus, while elevated creatinine clearance would indicate increased kidney function, which is contrary to the impaired function seen in renal failure.

4. The school nurse is explaining to older school children that obesity increases the risk for which disorders? (Select all that apply.)

• A. Asthma
• B. Hypertension
• C. Dyslipidemia
• D. All of the above

Correct answer: D

Rationale: Obesity increases the risk for conditions like asthma, hypertension, dyslipidemia, and altered glucose metabolism, but not typically irritable bowel disease.

5. A toddler’s mother calls the nurse because she thinks her son has swallowed a button type of battery. He has no signs of respiratory distress. The nurse’s response should be based on which premise?

• A. An emergency laparotomy is very likely.
• B. The location needs to be confirmed by radiographic examination.
• C. Surgery will be necessary if the battery has not passed in the stool in 48 hours.
• D. Careful observation is essential because an ingested battery cannot be accurately detected.

Correct answer: B

Rationale: Radiographic examination is essential to confirm the location of the battery, as it can cause significant damage, particularly if lodged in the esophagus. Immediate surgery may be required depending on its location and the potential for causing harm.

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