Nursing Elites

1. Which of the following conditions is characterized by a 'machine-like' murmur in children?

• A. Patent ductus arteriosus
• B. Ventricular septal defect
• C. Atrial septal defect
• D. Coarctation of the aorta

Correct answer: A

Rationale: The correct answer is A, Patent ductus arteriosus. This condition is characterized by a continuous 'machine-like' murmur due to abnormal blood flow between the aorta and pulmonary artery. Ventricular septal defect (choice B) is characterized by a harsh holosystolic murmur, atrial septal defect (choice C) typically presents with a fixed split S2 and a pulmonary flow murmur, and coarctation of the aorta (choice D) is associated with a systolic murmur in the back and bilateral lower extremities.

2. An infant, age 5 months, is brought to the clinic by his parents for a well-baby checkup. What is the best advice that the nurse should include at this time about injury prevention?

• A. Keep buttons, beads, and other small objects out of his reach.
• B. Do not permit him to chew paint from window ledges because he might absorb too much lead.
• C. When he learns to roll over, you must supervise him whenever he is on a surface from which he might fall.
• D. Lock the crib sides securely because he may stand and lean against them and fall out of bed.

Correct answer: A

Rationale: Small objects are a choking hazard for infants, so it is crucial to keep them out of reach to prevent injury.

3. Which is considered a block to effective communication?

• A. Using silence
• B. Using clichés
• C. Directing the focus
• D. Defining the problem

Correct answer: B

Rationale: Using clichés is a communication block because it can come across as dismissive or insincere, hindering meaningful dialogue.

4. The charge nurse in the pediatric unit is teaching nursing students about pyloric stenosis. A student asks what causes pyloric stenosis. How should the nurse respond?

• A. One portion of the intestines invaginates or telescopes into another
• B. Hypertrophy of the circular pylorus muscle
• C. Relaxed cardiac sphincter
• D. Absent ganglion cells in the colon

Correct answer: B

Rationale: Pyloric stenosis is caused by the hypertrophy (thickening) of the circular muscle of the pylorus, leading to obstruction. Choice A is incorrect as it describes intussusception, not pyloric stenosis. Choice C is incorrect as a relaxed cardiac sphincter is related to gastroesophageal reflux. Choice D is incorrect as it describes Hirschsprung's disease, not pyloric stenosis.

5. What clinical manifestation(s) is associated with calcium depletion (hypocalcemia)?

• A. Nausea, vomiting
• B. Weakness, fatigue
• C. Muscle hypotonicity
• D. Neuromuscular irritability

Correct answer: D

Rationale: Hypocalcemia can lead to neuromuscular irritability, causing symptoms such as muscle cramps, tetany, or seizures. Other symptoms like nausea, vomiting, and weakness are less specific and can be related to various conditions.

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