HESI LPN
Pediatrics HESI 2023
1. A healthcare professional is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the professional identify as the cause of the polycythemia?
- A. Low tissue oxygen needs
- B. Tissue oxygen needs
- C. Diminished iron level
- D. Hypertrophic cardiac muscle
Correct answer: B
Rationale: The correct answer is B: Tissue oxygen needs. Polycythemia occurs as the body's response to chronic hypoxia by increasing RBC production to enhance oxygen delivery. In tetralogy of Fallot, a congenital heart defect, the heart's structure causes reduced oxygen levels in the blood. This chronic hypoxia stimulates the bone marrow to produce more red blood cells, leading to an elevated RBC count. Choice A is incorrect as low blood pressure is not directly related to polycythemia in this context. Choice C, diminished iron level, is not the cause of polycythemia in tetralogy of Fallot. Choice D, hypertrophic cardiac muscle, is not the primary cause of the elevated RBC count in this case.
2. When developing the plan of care for a child with burns requiring fluid replacement therapy, what information would the nurse expect to include?
- A. Administration of colloid initially followed by a crystalloid
- B. Determination of fluid replacement based on the type of burn
- C. Administration of most of the volume during the first 8 hours
- D. Monitoring of hourly urine output to achieve less than 1 mL/kg/hr
Correct answer: C
Rationale: The correct answer is C. In fluid replacement therapy for burns, it is crucial to administer most of the volume during the first 8 hours to prevent shock and maintain perfusion. This rapid administration is essential to stabilize the child's condition. Choices A and B are incorrect because the initial fluid replacement in burns typically involves administering crystalloids, not colloids, and the fluid replacement is generally calculated based on the extent of the burn injury, not the type of burn. Choice D is incorrect as monitoring hourly urine output to achieve less than 1 mL/kg/hr is not recommended in burn patients; instead, urine output should be monitored to achieve 1-2 mL/kg/hr in children to ensure adequate renal perfusion.
3. The nurse is caring for a 1-month-old girl with low-set ears and severe hypotonia who was diagnosed with trisomy 18. Which nursing diagnosis would the nurse identify as most likely?
- A. Interrupted family process related to the child's diagnosis
- B. Deficient knowledge related to the genetic disorder
- C. Grieving related to the child's poor prognosis
- D. Ineffective coping related to stress from providing care
Correct answer: C
Rationale: The correct nursing diagnosis would be 'Grieving related to the child's poor prognosis.' Trisomy 18 is associated with a poor prognosis, and families often experience feelings of grief and loss when dealing with such a diagnosis. The choice 'Interrupted family process' does not directly address the emotional response to the prognosis. 'Deficient knowledge' may be a concern but does not address the emotional aspect of dealing with a poor prognosis. 'Ineffective coping related to stress from providing care' focuses more on the caregiver's ability to cope rather than the family's response to the child's condition.
4. A group of students is reviewing the components of the endocrine system. The students demonstrate understanding of the review when they identify what as the primary function of this system?
- A. Regulation of water balance
- B. Hormonal secretion
- C. Cellular metabolism
- D. Growth stimulation
Correct answer: B
Rationale: The primary function of the endocrine system is hormonal secretion. This system is responsible for producing and releasing hormones that regulate various bodily functions such as growth, metabolism, and mood. Choice A, regulation of water balance, is more related to the functions of the renal system rather than the endocrine system. Choice C, cellular metabolism, is a general cellular process that involves various systems, not specific to the endocrine system. Choice D, growth stimulation, though hormones can influence growth, it is not the primary function of the endocrine system. Therefore, the correct answer is B.
5. The school nurse is presenting a class to a group of students about common overuse disorders. Which disorder would the school nurse include?
- A. Dislocated radial head
- B. Transient synovitis of the hip
- C. Osgood-Schlatter disease
- D. Scoliosis
Correct answer: C
Rationale: Osgood-Schlatter disease is a common overuse injury that specifically affects the knee. It is characterized by inflammation of the patellar ligament at the tibial tuberosity due to repetitive strain on the growth plate during activities such as running and jumping. Dislocated radial head (Choice A) is not an overuse disorder but rather an injury usually seen in young children. Transient synovitis of the hip (Choice B) is an acute hip condition and not typically classified as an overuse disorder. Scoliosis (Choice D) is a condition characterized by an abnormal lateral curvature of the spine and is not considered an overuse disorder.
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