HESI RN
HESI Practice Test Pediatrics
1. A 6 year old who has asthma is demonstrating a prolonged expiratory phase and wheezing and has a 35% of personal best peak expiratory flow rate (PEFR). Based on these findings, what actions should the nurse take first?
- A. Administer a prescribed bronchodilator.
- B. Encourage the child to cough and deep breath.
- C. Report findings to the health care provider.
- D. Determine what triggers precipitated this attack.
Correct answer: A
Rationale: Administering a bronchodilator will help open the airways and improve breathing.
2. A child admitted with diabetic ketoacidosis is demonstrating Kussmaul respirations. The nurse determines that the increased respiratory rate is a compensatory mechanism for which acid-base alteration?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Respiratory alkalosis.
- D. Metabolic acidosis.
Correct answer: D
Rationale: Kussmaul respirations are deep, rapid breathing patterns observed in metabolic acidosis, such as diabetic ketoacidosis. In this condition, the body tries to compensate for the acidic environment by increasing the respiratory rate to eliminate excess carbon dioxide (CO2) and decrease the acid levels, thereby helping to correct the acid-base imbalance. Therefore, the correct answer is metabolic acidosis.
3. A child with cystic fibrosis is admitted to the hospital with respiratory distress. Which intervention should the practical nurse (PN) implement?
- A. Administer bronchodilators as prescribed.
- B. Limit fluid intake.
- C. Provide a high-fat diet.
- D. Encourage bed rest only.
Correct answer: A
Rationale: Administering bronchodilators as prescribed is crucial for managing respiratory distress in children with cystic fibrosis. Bronchodilators help to open the airways, facilitating easier breathing for the child. Limiting fluid intake, providing a high-fat diet, or encouraging bed rest only are not appropriate interventions for respiratory distress associated with cystic fibrosis. Limiting fluid intake could worsen dehydration, a high-fat diet is not recommended due to pancreatic insufficiency in cystic fibrosis, and bed rest alone does not address the respiratory distress.
4. 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.
5. An 8-year-old male client with nephrotic syndrome is receiving salt-poor human albumin IV. Which findings indicate to the nurse that the child is manifesting a therapeutic response?
- A. Decreased urinary output
- B. Decreased periorbital edema
- C. Increased periods of rest
- D. Weight gain of 0.5 kg/day
Correct answer: B
Rationale: In nephrotic syndrome treatment, decreased periorbital edema is a positive therapeutic response as it indicates a reduction in fluid retention. Periorbital edema is a common symptom of nephrotic syndrome due to fluid accumulation, so a decrease in this swelling signifies an improvement in the condition.
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