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 coarctation 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 findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.

2. A 4-year-old child is brought to the clinic with complaints of ear pain and fever. The practical nurse suspects otitis media. Which symptom supports this suspicion?

• A. Clear nasal discharge.
• B. Dry, hacking cough.
• C. Tugging at the ear.
• D. Sore throat.

Correct answer: C

Rationale: Tugging at the ear is a common symptom in children with otitis media. It often indicates discomfort or pain in the ear, suggesting inflammation or infection in the middle ear. This behavior is frequently observed in young children who are unable to express their discomfort verbally, making it a significant clinical indicator for otitis media in this age group. Clear nasal discharge (Choice A) is more indicative of a cold or allergies, while a dry, hacking cough (Choice B) is not typically associated with otitis media. Although a sore throat (Choice D) can sometimes accompany ear infections, tugging at the ear is a more specific and reliable symptom in this case.

3. The practical nurse is reinforcing information about Lyme disease prevention with a client who is preparing for a camping trip with family. Which statement by the client informs the nurse that the client understands the instruction?

• A. I'll make sure my son wears dark clothing on his hike.
• B. I'll get a prescription for amoxicillin to take with us.
• C. We should all get the Lyme disease vaccine before our trip.
• D. We will wear long pants and long-sleeved shirts in the woods.

Correct answer: D

Rationale: The correct answer is D. Wearing long pants and long-sleeved shirts is an effective preventive measure against tick bites, which reduces the risk of contracting Lyme disease. This attire helps to minimize skin exposure to ticks, thereby decreasing the chances of a tick attaching and transmitting the disease-causing bacteria.

4. The parents of a 3-year-old boy who has Duchenne muscular dystrophy (DMD) ask, 'how can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide these parents?

• A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family.
• B. The male infant had a viral infection that went unnoticed and untreated, leading to muscle damage.
• C. The lack of the protein dystrophin in the mother can impact the muscle groups of males.
• D. Damage to the spinal cord due to birth trauma from a breech vaginal birth weakens the muscles.

Correct answer: A

Rationale: The nurse should inform the parents that Duchenne muscular dystrophy is an X-linked recessive disorder, which primarily affects male children in the family. This genetic condition is caused by a mutation in the dystrophin gene located on the X chromosome. Females are usually carriers of the gene mutation and may pass it on to their sons. Daughters of carrier mothers have a 50% chance of being carriers themselves. Understanding the genetics of DMD can help the parents make informed decisions about family planning and genetic counseling.

5. A 16-year-old female student with a history of asthma controlled with both an oral antihistamine and an albuterol (ProAir) metered-dose inhaler (MDI) comes to the school nurse. The student complains that she cannot sleep at night, feels shaky, and her heart feels like it is 'beating a mile a minute.' Which information is most important for the nurse to obtain?

• A. When she last took the antihistamine.
• B. When her last asthma attack occurred.
• C. Duration of most asthma attacks.
• D. How often the MDI is used daily.

Correct answer: D

Rationale: The most crucial information for the nurse to obtain in this scenario is how often the metered-dose inhaler (MDI) is used daily. This information will help assess if the symptoms of insomnia, shakiness, and palpitations are potentially related to overuse of the inhaler, which can cause side effects such as tremors and palpitations. Monitoring the frequency of MDI usage is essential in managing asthma and ensuring appropriate medication administration.

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