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. The nurse volunteering at a homeless shelter to assist families with children identifies homelessness as a risk preventing families from achieving positive outcomes in life. What family theory encompasses this approach to assessing family dynamics?
- A. Duvall's developmental theory
- B. Friedman's structural functional theory
- C. Von Bertalanffy's general system theory applied to families
- D. Resiliency model of family stress, adjustment, and adaptation
Correct answer: D
Rationale: The Resiliency model of family stress, adjustment, and adaptation focuses on identifying the elements of risks and protective factors that help families achieve positive outcomes. In this scenario, the nurse recognizing homelessness as a risk aligns with the resiliency model, which emphasizes how families cope and adapt in the face of stressors. Duvall's theory primarily focuses on family life cycle stages, Friedman's theory emphasizes the roles and functions within a family structure, and Von Bertalanffy's theory looks at families as complex systems rather than specifically addressing resilience in the face of stressors.
3. A child with a diagnosis of nephrotic syndrome is being discharged. What dietary instructions should the nurse provide?
- A. Encourage a high-protein diet
- B. Avoid foods high in salt
- C. Encourage a low-sodium diet
- D. Encourage a low-protein diet
Correct answer: B
Rationale: For a child with nephrotic syndrome, it is important to avoid foods high in salt. This instruction helps manage symptoms and prevent complications associated with the condition. High salt intake can lead to fluid retention and worsen edema, which are common issues in nephrotic syndrome. Encouraging a low-sodium diet is crucial to maintaining fluid balance and reducing strain on the kidneys. Choices A, C, and D are incorrect because a high-protein diet can further stress the kidneys, while a low-protein diet may not be necessary unless specifically advised by the healthcare provider. Encouraging a low-sodium diet is more appropriate for managing nephrotic syndrome.
4. Surgical repair for patent ductus arteriosus (PDA) is done to prevent the complication of
- A. pulmonary infection
- B. right-to-left shunt of blood
- C. decreased workload on left side of the heart
- D. increased pulmonary vascular congestion
Correct answer: D
Rationale: The correct answer is D: increased pulmonary vascular congestion. Surgical repair of patent ductus arteriosus (PDA) aims to prevent the complications associated with increased pulmonary vascular congestion, such as pulmonary hypertension and heart failure. Choice A, pulmonary infection, is not a direct complication of PDA but can occur secondary to other conditions. Choice B, right-to-left shunt of blood, is a feature of some congenital heart defects but not a direct complication of PDA. Choice C, decreased workload on the left side of the heart, is not a primary reason for surgical repair of PDA, as the main concern is the impact on pulmonary circulation.
5. What is the primary treatment for minimal change nephrotic syndrome?
- A. corticosteroids
- B. antihypertensive agents
- C. long-term diuretics
- D. increased fluids to promote diuresis
Correct answer: A
Rationale: Corticosteroids are the mainstay of treatment for minimal change nephrotic syndrome due to their immunosuppressive effects, which help reduce proteinuria and control the disease progression. Antihypertensive agents are not the primary treatment for this condition and are typically used to manage hypertension that may result from nephrotic syndrome. Long-term diuretics are not indicated in the treatment of minimal change nephrotic syndrome as they do not address the underlying cause. Increasing fluids to promote diuresis is not a recommended treatment for minimal change nephrotic syndrome, as it can exacerbate edema and fluid overload in these patients.
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