Nursing Elites

1. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?

• A. The aortic semilunar valve obstructs blood flow into the systemic circulation
• B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
• C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
• D. An opening in the atrial septum causes a murmur due to a turbulent left-to-right shunt

Correct answer: B

Rationale: The correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.

2. Prior to discharge, the parents of a child with cystic fibrosis are demonstrating chest physiotherapy (CPT) that they will perform for their child at home. Which action requires intervention by the nurse?

• A. Plan to perform CPT when the child awakens in the morning.
• B. A cupped hand is used when percussing the lung field.
• C. A bronchodilator is administered before starting CPT.
• D. The child is placed in a supine position to begin percussion.

Correct answer: D

Rationale: The correct answer is D. Placing the child in a supine position to begin percussion is incorrect for chest physiotherapy (CPT). This position is not effective for CPT as it may lead to improper drainage of secretions. The child should be in an appropriate sitting or slightly reclined position to ensure proper lung drainage during CPT. Choices A, B, and C are all appropriate actions for chest physiotherapy. Performing CPT when the child awakens helps in clearing secretions, using a cupped hand during percussion is a proper technique to promote secretion movement, and administering a bronchodilator before CPT can help open up the airways for better clearance.

3. The nurse is assessing a 6-month-old infant. Which response requires further evaluation by the nurse?

• A. Has doubled birth weight.
• B. Turns head to locate sound.
• C. Plays peek-a-boo.
• D. Demonstrates startle reflex.

Correct answer: D

Rationale: At 6 months old, the startle reflex should diminish, so its persistence warrants further evaluation by the nurse. Choices A, B, and C are appropriate developmental milestones for a 6-month-old infant. By 6 months, infants typically double their birth weight, exhibit localization of sound by turning their head, and engage in interactive play like peek-a-boo.

4. Which developmental behavior should the practical nurse identify as normal for a 6-month-old infant?

• A. Rolls over completely.
• B. Creeps on all fours.
• C. Pulls self to a standing position.
• D. Assumes a sitting position independently.

Correct answer: A

Rationale: The correct answer is A: 'Rolls over completely.' By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy. Creeping usually occurs around 9-10 months, pulling self to a standing position around 9-12 months, and assuming a sitting position independently around 8 months. Therefore, at 6 months, rolling over completely is the most expected developmental behavior.

5. A 6-year-old boy with bronchial asthma takes the beta-adrenergic agonist agent albuterol (Proventil). The child's mother tells the nurse that she uses this medication to open her son's airway when he is having trouble breathing. What is the nurse's best response?

• A. Recommend that the mother bring the child in for immediate evaluation
• B. Advise the mother that overuse of the drug may cause chronic bronchitis
• C. Assure the mother that she is using the medication correctly
• D. Confirm that the medication helps to reduce airway inflammation

Correct answer: C

Rationale: The nurse's priority is to reassure the mother that she is using albuterol correctly to open her son's airways during episodes of difficulty breathing. This reassurance helps build trust and ensures that the child receives the intended benefit of the medication. The answer choice recommending immediate evaluation (A) is not appropriate at this point as the mother is using the medication as prescribed. Advising about overuse causing chronic bronchitis (B) is incorrect and may cause unnecessary alarm. Confirming that the medication helps reduce airway inflammation (D) is not the best response because albuterol is a beta-adrenergic agonist used primarily for bronchodilation in acute asthma exacerbations, rather than for reducing inflammation.

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