Nursing Elites

1. When a father asks why his child with tetralogy of Fallot seems to favor a squatting position, the nurse would explain that squatting:

• A. Increases peripheral vascular resistance
• B. Decreases arterial blood flow away from the heart
• C. It's a common resting position when a child is tachycardic
• D. Increases the workload of the heart

Correct answer: A

Rationale: Squatting increases systemic vascular resistance, which leads to a reduction in the right-to-left shunting of blood in children with tetralogy of Fallot. This helps improve oxygenation by balancing the pulmonary and systemic blood flow. The squatting position decreases the pressure in the right ventricle and reduces the magnitude of the right-to-left shunt by increasing afterload, thereby improving oxygenation. Choices B, C, and D are incorrect because squatting does not decrease arterial blood flow away from the heart, is not related to being tachycardic, and does not increase the workload of the heart.

2. A clinic nurse reviews the record of a child just seen by a doctor and diagnosed with suspected aortic stenosis. The nurse expects to note documentation of which clinical manifestation specifically found in this disorder?

• A. Pallor
• B. Hyperactivity
• C. Exercise intolerance
• D. Gastrointestinal disturbances

Correct answer: C

Rationale: Aortic stenosis is a condition characterized by the narrowing of the aortic valve, leading to reduced blood flow from the heart to the body. This narrowing restricts the amount of oxygenated blood that can reach various tissues, including muscles. As a result, individuals with aortic stenosis may experience exercise intolerance, as their muscles may not receive an adequate oxygen supply during physical activity. This can manifest as fatigue, shortness of breath, and overall decreased exercise capacity. Pallor (choice A) is a pale appearance that may be seen in anemia or other conditions affecting blood flow but is not specific to aortic stenosis. Hyperactivity (choice B) and gastrointestinal disturbances (choice D) are not typically associated with aortic stenosis.

3. A 3-year-old female has had severe diarrhea and vomiting for 4 days. She is now unresponsive with rapid, shallow respirations and thready radial pulses. Her heart rate is 160 beats/min, and her oxygen saturation is 88%. You should:

• A. Ventilate her with a bag-valve mask.
• B. Start chest compressions.
• C. Administer high-flow oxygen via a non-rebreathing mask.
• D. Place her in the recovery position.

Correct answer: A

Rationale: In a pediatric patient presenting with unresponsiveness, rapid, shallow respirations, thready pulses, high heart rate, and low oxygen saturation, the priority is to ensure adequate oxygenation. Ventilating the child with a bag-valve mask is crucial in this scenario to support her breathing and improve oxygenation, as indicated by her low oxygen saturation and respiratory distress. Starting chest compressions is not indicated as the child has a pulse. Administering high-flow oxygen via a non-rebreathing mask may not be as effective as providing positive pressure ventilation with a bag-valve mask in this situation. Placing her in the recovery position is not appropriate when the child is unresponsive and in respiratory distress.

4. When performing CPR on an infant with suspected sudden infant death syndrome (SIDS), an important aspect to consider is:

• A. Focusing all of your attention on the infant, with minimal parental interaction.
• B. Carefully inspecting the environment in which the infant was found.
• C. Understanding that most infants with SIDS can be successfully resuscitated.
• D. Encouraging the presence of the parents during your resuscitation attempt.

Correct answer: B

Rationale: When dealing with a suspected case of SIDS, it is crucial to carefully inspect the environment in which the infant was found. This inspection can provide valuable information that may help determine the cause and support further investigation into the incident. By examining the surroundings, potential hazards or clues related to the sudden event may be identified, aiding in understanding the circumstances and potentially preventing similar incidents in the future.

5. Which of the following is NOT an infectious cause of diarrheal diseases?

• A. Allergy
• B. Bacterial
• C. Parasitic
• D. Viral

Correct answer: A

Rationale: Allergy is the correct answer as it is a non-infectious cause of diarrheal diseases. While bacterial, parasitic, and viral infections can lead to diarrhea by affecting the gastrointestinal tract, allergies are immune system reactions triggered by specific substances and are not caused by infectious agents. Bacterial, parasitic, and viral infections are known to cause infectious diarrhea, making choices B, C, and D incorrect.

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