Nursing Elites

1. 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.

2. Beta-adrenergic agonists such as albuterol are given to Reggie, a child with asthma, to primarily do which of the following?

• A. Dilate the bronchioles
• B. Reduce secondary infections
• C. Decrease postnasal drip
• D. Reduce airway inflammation

Correct answer: A

Rationale: Beta-adrenergic agonists like albuterol are bronchodilators that primarily work by relaxing and dilating the bronchioles, which helps to alleviate bronchoconstriction, a characteristic feature of asthma. This action leads to improved airflow and easier breathing for individuals experiencing asthma symptoms.

3. 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.

4. You are treating a 5-year-old child who has had severe diarrhea and vomiting for 3 days and is now showing signs of shock. Supplemental oxygen has been given, and you have elevated his lower extremities. En route to the hospital, you note that his work of breathing has increased. You should:

• A. begin positive-pressure ventilations and reassess the child.
• B. lower the extremities and reassess the child.
• C. listen to the lungs with a stethoscope for abnormal breath sounds.
• D. insert a nasopharyngeal airway and increase the oxygen flow.

Correct answer: B

Rationale: When the work of breathing increases after elevating the legs, it is important to lower the extremities. Elevating the lower extremities in a child with signs of shock can worsen the condition by reducing venous return to the heart. Lowering the extremities can help improve venous return and potentially alleviate the increased work of breathing.

5. What assessment finding places a newborn at risk for developing physiologic jaundice?

• A. Cephalohematoma
• B. Mongolian spots
• C. Telangiectatic nevi
• D. Molding

Correct answer: A

Rationale: The correct answer is A, Cephalohematoma. Physiologic jaundice in newborns can occur due to the breakdown of excess red blood cells. A cephalohematoma, a collection of blood caused by ruptured blood vessels between a cranial bone's surface and periosteal membrane, can lead to increased red blood cell breakdown. This increased breakdown can contribute to the development of physiologic jaundice in newborns. Choices B, Mongolian spots, and C, Telangiectatic nevi, are both benign skin conditions and are not directly associated with increased red blood cell breakdown. Choice D, Molding, refers to the shaping of the fetal head during passage through the birth canal and is not related to the development of physiologic jaundice.

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