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

HESI RN

Pediatric HESI

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. During a well baby visit, the parents explain that a soft bulge appears in the groin of their 4-month-old son when he cries or strains during stooling. The infant is scheduled for surgical repair of the inguinal hernia in two weeks. What should the parent be instructed to do if the hernia becomes incarcerated prior to the surgery?

A. Use a rectal thermometer to strain during stooling.
B. Gently manipulate the hernia for reduction.
C. Offer oral electrolyte fluids for comfort.
D. Give acetaminophen or aspirin for crying.

Correct answer: B

Rationale: In the case of an incarcerated inguinal hernia, gentle manipulation can sometimes help in reducing it before surgery. This action should be taken cautiously and immediately followed by seeking medical attention. It is important to note that attempting reduction should be done by a healthcare professional, and parents should be advised to seek urgent medical care if the hernia becomes incarcerated. Using a rectal thermometer to strain during stooling (Choice A) is not the correct approach for an incarcerated hernia and can worsen the condition. Offering oral electrolyte fluids for comfort (Choice C) or giving acetaminophen or aspirin for crying (Choice D) are not appropriate interventions for an incarcerated hernia and may delay necessary medical treatment.

3. The healthcare provider is evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?

A. Laughs readily, turns from back to side.
B. Has strong Moro and tonic neck reflexes.
C. Keeps fists clenched, opens hands when grasping an object.
D. Can lift head but not chest when lying on abdomen.

Correct answer: A

Rationale: In infants, laughing readily and turning from back to side are developmental milestones that indicate effective thyroid therapy and normal development. These actions demonstrate improved muscle tone, coordination, and overall growth, which are key indicators of successful treatment for hypothyroidism in infants. Choices B, C, and D describe behaviors that are not specific indicators of thyroid therapy effectiveness in treating hypothyroidism in infants.

4. A child with cystic fibrosis is being discharged home with pancreatic enzyme replacement therapy. What information should the practical nurse reinforce with the parents?

A. Give the enzymes after meals.
B. Mix the enzymes with hot food or drinks.
C. Enzymes should be taken before or with meals.
D. Avoid giving enzymes with any food or drink.

Correct answer: C

Rationale: The correct answer is C: 'Enzymes should be taken before or with meals.' Pancreatic enzymes should be taken before or with meals to assist with digestion in children with cystic fibrosis. This timing helps maximize the effectiveness of the enzymes in breaking down nutrients from food. Giving the enzymes after meals (choice A) may not provide the necessary support for digestion. Mixing the enzymes with hot food or drinks (choice B) is not recommended as it may affect the enzymes' efficacy. Avoiding giving enzymes with any food or drink (choice D) is incorrect as enzymes need to be taken in conjunction with meals to aid in digestion.

5. The mother of an 11-year-old boy with juvenile arthritis tells the nurse, 'I really don’t want my son to become dependent on pain medication, so I only allow him to take it when he is really hurting.' Which information is most important for the nurse to provide this mother?

A. Encouraging the child to rest when he experiences pain
B. Encouraging quiet activities like watching television as a pain distractor
C. Suggesting the use of hot baths as an alternative to pain medication
D. Explaining that giving pain medication around the clock helps control the pain

Correct answer: D

Rationale: The nurse should educate the mother that giving pain medication around the clock helps maintain a consistent level of pain control, preventing severe pain episodes and improving the child's quality of life. It is essential to manage pain proactively rather than waiting for the child to be in severe pain before administering medication. Choices A, B, and C do not address the importance of proactive pain management and maintaining a consistent level of pain control. Encouraging rest, quiet activities, or hot baths as distractions or alternatives may not provide adequate pain relief for the child with juvenile arthritis, and they do not address the underlying issue of effective pain management.