Nursing Elites

1. How is the diagnosis of Hirschsprung disease confirmed in a 1-month-old infant admitted to the pediatric unit?

• A. Colonoscopy
• B. Rectal biopsy
• C. Multiple saline enemas
• D. Fiberoptic nasoenteric tube

Correct answer: B

Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. It confirms the absence of ganglion cells in the affected bowel segment, which is characteristic of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for confirmation as it may not provide a definitive result. Multiple saline enemas (Choice C) are utilized in the treatment of meconium ileus, a complication of cystic fibrosis, and not in the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a diagnostic tool for Hirschsprung disease; it is commonly used for gastrointestinal decompression or feeding purposes but does not confirm the diagnosis.

2. During a routine monthly examination, a 5-month-old infant is brought to the pediatric clinic. What assessment finding should alert the nurse to notify the health care provider immediately?

• A. Temperature of 99.5°F
• B. Blood pressure of 75/48 mm Hg
• C. Heart rate of 100 beats per minute
• D. Respiratory rate of 50 breaths per minute

Correct answer: D

Rationale: A respiratory rate of 50 breaths per minute in a 5-month-old infant is higher than the expected range and may indicate respiratory distress. This finding is concerning and should prompt the nurse to notify the health care provider for further evaluation and intervention. A temperature of 99.5°F, blood pressure of 75/48 mm Hg, and heart rate of 100 beats per minute are within normal ranges for a 5-month-old infant. Elevated temperature may indicate a mild fever, which can be monitored. A blood pressure of 75/48 mm Hg is within the normal range for infants. A heart rate of 100 beats per minute is also within the expected range for a 5-month-old infant and does not typically require immediate notification of the health care provider.

3. A healthcare provider is discussing the care of an infant with colic with the parents. What should the healthcare provider explain is the cause of colicky behavior?

• A. Inadequate peristalsis
• B. Paroxysmal abdominal pain
• C. An allergic response to certain proteins in milk
• D. A protective mechanism designed to eliminate foreign proteins

Correct answer: B

Rationale: Colicky behavior in infants is primarily characterized by paroxysmal abdominal pain, resulting in excessive crying and fussiness. The pain episodes are often unpredictable and can be distressing for both the infant and the parents. Inadequate peristalsis (Choice A) refers to weak or ineffective bowel movements and is not the typical cause of colic. While some infants may experience colic due to an allergic response to certain proteins in milk (Choice C), this is not the primary cause of colic behavior in all infants. Choice D, a protective mechanism designed to eliminate foreign proteins, is not a recognized cause of colic. Therefore, the correct explanation for the cause of colicky behavior in infants is paroxysmal abdominal pain.

4. When evaluating a child with a diagnosis of attention-deficit/hyperactivity disorder (ADHD) for medication management, what is an important assessment for the nurse to perform?

• A. Assess the child's sleep patterns
• B. Assess the child's dietary intake
• C. Assess the child's academic performance
• D. Assess the child's behavior at home

Correct answer: B

Rationale: Assessing the child's dietary intake is crucial as certain foods and additives can affect ADHD symptoms. Ensuring a balanced diet can help manage symptoms and provide proper nutrition. Assessing sleep patterns (Choice A) is also important, but dietary intake is more directly linked to symptom management in ADHD. Academic performance (Choice C) and behavior at home (Choice D) may be affected by ADHD but are not as directly related to medication management as dietary intake.

5. The healthcare provider is assessing an infant and notes that the infant's urine has a mousy or musty odor. What would the healthcare provider suspect?

• A. Maple syrup urine disease
• B. Tyrosinemia
• C. Phenylketonuria
• D. Trimethylaminuria

Correct answer: C

Rationale: Phenylketonuria (PKU) is suggested by a mousy or musty odor of the urine, caused by the inability to metabolize phenylalanine. Maple syrup urine disease (Choice A) is characterized by a sweet-smelling urine. Tyrosinemia (Choice B) presents with cabbage-like odor in the urine. Trimethylaminuria (Choice D) results in a fishy odor in the urine, breath, and sweat.

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