Nursing Elites

1. A child is refusing to use the potty and having accidents, even though he has achieved toilet training. This is an example of which type of behavior?

• A. Positive reinforcement
• B. Desensitization
• C. Phobia
• D. Regression

Correct answer: D

Rationale: The correct answer is D, regression. Regression occurs when a child reverts to an earlier behavior, such as having accidents after being successfully toilet trained. This regression often happens due to stress or changes in routine. Choices A, B, and C are incorrect because positive reinforcement involves encouraging desired behavior, desensitization is a process of reducing sensitivity to a stimulus, and phobia is an intense fear or aversion to a specific object or situation, none of which directly apply to the described situation of the child having accidents after being toilet trained.

2. What laboratory finding should the nurse expect in a child with an excess of water?

• A. Decreased hematocrit
• B. High serum osmolality
• C. High urine specific gravity
• D. Increased blood urea nitrogen (BUN)

Correct answer: A

Rationale: Water excess typically leads to hemodilution, resulting in a decreased hematocrit. High serum osmolality and specific gravity would indicate dehydration, while elevated BUN could suggest renal impairment or dehydration, not fluid overload.

3. An infant requires surgery for repair of a cleft lip. An important priority of the preoperative nursing care is which?

• A. Initiating discharge teaching
• B. Performing baseline physical and behavioral assessment
• C. Observing for allergic reactions to preoperative antibiotics
• D. Determining whether this defect exists in other family members

Correct answer: B

Rationale: Performing a baseline physical and behavioral assessment is crucial to determine the infant's current health status and to identify any potential risks before surgery.

4. The nurse is teaching parents about potential causes of colic in infancy. Which should the nurse include in the teaching session?

• A. Overeating
• B. All are applicable
• C. Frequent burping
• D. Parental smoking

Correct answer: B

Rationale: Overeating, swallowing excessive air (leading to frequent burping), and parental smoking are known to contribute to colic in infants. Understimulation is not typically associated with colic.

5. What condition is the most common cause of acute renal failure in children?

• A. Pyelonephritis
• B. Tubular destruction
• C. Severe dehydration
• D. Upper tract obstruction

Correct answer: C

Rationale: Severe dehydration is the most common cause of acute renal failure in children, as it leads to prerenal azotemia, which can progress to renal failure if not corrected. Other causes like pyelonephritis and tubular destruction are less common and usually secondary to other conditions.

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