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. A 4-year-old fell from a third-story window and landed on her head. She is semiconscious with slow, irregular breathing and bleeding from her mouth. After performing a jaw-thrust maneuver with simultaneous stabilization of her head, what should you do next?

• A. suction the oropharynx
• B. insert a nasopharyngeal airway
• C. initiate positive pressure ventilations
• D. place the patient in the recovery position

Correct answer: A

Rationale: In this scenario, the 4-year-old is presenting with signs of airway compromise due to the fall. After performing a jaw-thrust maneuver to open the airway while stabilizing the head to prevent further injury, the next step should be to suction the oropharynx. Suctioning helps to clear any blood or secretions from the mouth and throat, ensuring a clear airway for proper breathing. Inserting a nasopharyngeal airway or initiating positive pressure ventilations would be premature without first ensuring the airway is clear. Placing the patient in the recovery position is not indicated at this point as the focus should be on managing the airway.

3. When administering IV fluids to a dehydrated infant, what intervention is most important at this time?

• A. Continuing the prescribed flow rate
• B. Monitoring the intravenous drop rate
• C. Calculating the total necessary intake
• D. Maintaining the fluid at body temperature

Correct answer: B

Rationale: Monitoring the intravenous drop rate is crucial when administering IV fluids to ensure that the correct amount of fluids is delivered to the dehydrated infant. Choice A assumes the initial rate is correct without ongoing assessment. Choice C, while important, does not address the immediate need for monitoring the infusion rate. Choice D, maintaining the fluid at body temperature, is essential for comfort but is not as critical as ensuring the correct fluid delivery rate. By monitoring the intravenous drop rate, healthcare providers can adjust the flow as needed to prevent overhydration or underhydration, helping to manage the infant's fluid balance effectively.

4. What is the priority nursing responsibility when a 3-year-old child in a crib is experiencing a tonic-clonic seizure with a clamped jaw?

• A. Apply restraints.
• B. Administer oxygen.
• C. Protect the child from self-injury.
• D. Insert a plastic airway in the child’s mouth.

Correct answer: C

Rationale: During a tonic-clonic seizure, the priority nursing responsibility is to protect the child from self-injury. Applying restraints (Choice A) can cause harm by restricting movement during the seizure. While administering oxygen (Choice B) may be necessary, it is not the immediate priority during an active seizure. Inserting a plastic airway (Choice D) is contraindicated as it can lead to injury and is not recommended during a seizure. Protecting the child from self-injury (Choice C) is crucial to prevent harm from uncontrolled movements and potential falls, ensuring the safety of the child.

5. Congenital heart defects have traditionally been divided into acyanotic or cyanotic defects. Based on the nurse’s knowledge of congenital heart defects, this system in clinical practice is

• A. helpful because it explains the hemodynamics involved
• B. helpful because children with cyanotic defects are easily identified
• C. problematic because cyanosis is rarely present in children
• D. problematic because children with acyanotic heart defects may develop cyanosis

Correct answer: D

Rationale: The classification system of congenital heart defects into acyanotic or cyanotic defects is problematic because children with acyanotic heart defects may develop cyanosis, complicating the differentiation. Cyanosis can occur in some acyanotic defects due to various reasons such as right-to-left shunting or decreased pulmonary blood flow, making the classification based solely on cyanosis misleading. Choice A is incorrect because while the classification may involve hemodynamics, the main issue lies in the potential for acyanotic defects to develop cyanosis. Choice B is incorrect as the ease of identifying children with cyanotic defects does not address the main problem with the classification system. Choice C is also incorrect as the presence of cyanosis is not the only factor determining the classification's validity.

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