HESI RN
HESI Pediatric Practice Exam
1. What is the best response for the nurse when a 2-year-old boy begins to cry as the mother starts to leave?
- A. Let me read this book to you.
- B. Two-year-olds usually stop crying the minute the parent leaves.
- C. Now be a big boy. Mommy will be back soon.
- D. Let's wave bye-bye to mommy.
Correct answer: D
Rationale: The best response for the nurse in this situation is to help the child understand that the separation is temporary. Waving bye-bye to mommy can be reassuring to the child and make the separation process easier. It acknowledges the child's feelings while providing a positive and comforting interaction. Choice A may distract the child temporarily but doesn't address the underlying issue of separation anxiety. Choice B is inaccurate as children may continue to cry even after the parent leaves. Choice C diminishes the child's emotions and doesn't offer a supportive approach.
2. 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: The ability to laugh readily and turn from back to side indicates the effectiveness of thyroid therapy and normal development in a 5-month-old. These behaviors suggest improved muscle tone and motor skills, which are positive outcomes of thyroid hormone replacement therapy for hypothyroidism. Choices B, C, and D describe developmental milestones that are not specific indicators of the effectiveness of thyroid therapy in treating hypothyroidism in a 5-month-old.
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 parents of a 3-year-old boy who has Duchenne muscular dystrophy ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide to parents?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family
- B. The striated muscle groups of males can be impacted by a lack of the protein dystrophin in their mothers
- C. The male infant had a viral infection that went unnoticed and untreated so muscle damage was incurred
- D. Birth trauma with a breech vaginal birth causes damage to the spinal cord, thus weakening the muscles
Correct answer: A
Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance. Choices B, C, and D are incorrect because they do not address the genetic basis of Duchenne muscular dystrophy or its inheritance pattern, which is crucial information for the parents in this scenario.
5. When caring for a child experiencing severe asthma symptoms, which medication should the practical nurse anticipate being administered first?
- A. Inhaled corticosteroids.
- B. Oral corticosteroids.
- C. Short-acting beta agonists.
- D. Leukotriene receptor antagonists.
Correct answer: C
Rationale: In the management of acute asthma exacerbations, the first-line medication for quick relief of bronchoconstriction is a short-acting beta agonist, such as albuterol. These medications help to rapidly open up the airways, providing immediate relief to the patient. Inhaled corticosteroids are more commonly used for long-term control of asthma symptoms, while oral corticosteroids and leukotriene receptor antagonists are often reserved for more severe or chronic cases. Therefore, in a child experiencing severe asthma symptoms, the practical nurse should anticipate the administration of short-acting beta agonists as the initial intervention to provide quick relief and improve breathing.
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