a two year old child with a heart failure hf is admitted for replacement of a graft for coarctation of the aorta prior to administering the next dose

HESI RN

Pediatric HESI

1. A two-year-old child with heart failure is admitted for replacement of a graft for coarctation of the aorta. Prior to administering the next dose of digoxin (Lanoxin), the nurse obtains an apical heart rate of 128 bpm. What action should the nurse take?

A. Determine the pulse deficit.
B. Administer the scheduled dose.
C. Calculate the safe dose range.
D. Review the serum digoxin level.

Correct answer: B

Rationale: Administering the scheduled dose is appropriate in this scenario as the heart rate of 128 bpm falls within the acceptable range for a two-year-old child with heart failure. It indicates that the child may benefit from the therapeutic effects of digoxin. Monitoring the heart rate closely after administration is essential to ensure the medication's effectiveness and safety. Determining the pulse deficit (Choice A) is not necessary in this situation as the heart rate is within the acceptable range. Calculating the safe dose range (Choice C) is not needed since the heart rate is already within the expected parameters. Reviewing the serum digoxin level (Choice D) is not the immediate action required in this case where the heart rate is within the normal range.

2. A 16-year-old female student with a history of asthma controlled with both an oral antihistamine and an albuterol (Proventil) 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 important information for the nurse to obtain is how often the MDI is used daily. This is crucial to assess if the symptoms of insomnia, shakiness, and rapid heart rate are related to overuse of the inhaler, leading to potential side effects such as systemic effects of beta-2 agonists.

3. 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.

4. The practical nurse is caring for a child who was admitted for treatment of seizures. Which intervention should the nurse implement to help prevent injury from a seizure?

A. Have a padded tongue depressor at the bedside.
B. Keep the side rails padded and in an upright position.
C. Place a padded helmet on the child’s head.
D. Restrain the child during the seizure activity.

Correct answer: B

Rationale: The correct intervention to help prevent injury during a seizure is to keep the side rails padded and in an upright position. This measure helps to ensure the child's safety by preventing falls or accidental injuries. Using a padded tongue depressor or restraining the child can potentially cause harm and are not recommended. Placing a padded helmet is not a standard intervention for seizure safety in this scenario.

5. During a well-baby exam, a nurse finds that a 2-month-old's right testicle is not descended into the scrotum, but the left one is palpable. What should the nurse do?

A. Ask if the right testis has been seen in the scrotum before
B. Address potential concerns about future fertility
C. Schedule an ultrasound to confirm the position of the testicle
D. Prepare to obtain a urine specimen for culture

Correct answer: A

Rationale: The correct answer is to ask if the right testis has been seen in the scrotum before. The initial step in managing an undescended testicle is to determine if it has been previously observed in the scrotum or if this is a new finding. This information is crucial in deciding the next course of action. Choice B is incorrect because addressing future fertility concerns comes after confirming the status of the testicle. Choice C is unnecessary at this stage as the first step is to gather more history. Choice D is unrelated to the issue described and is not indicated in this scenario.