Nursing Elites

1. The nurse is caring for a child with acute postinfectious glomerulonephritis. Which of the following best describes the pathophysiology of acute postinfectious glomerulonephritis?

• A. Occurs after a urinary tract infection
• B. Occurs after a streptococcal infection
• C. Associated with renal vascular disorders
• D. Is caused by E. coli

Correct answer: B

Rationale: The correct answer is B: 'Occurs after a streptococcal infection.' Acute postinfectious glomerulonephritis often occurs after an infection with certain strains of streptococcus bacteria, specifically group A streptococcus. The body’s immune response to the infection leads to inflammation and damage in the kidneys. Choices A, C, and D are incorrect because acute postinfectious glomerulonephritis is primarily associated with streptococcal infections, not urinary tract infections, renal vascular disorders, or E. coli.

2. Which of the following conditions is characterized by a 'machine-like' murmur in children?

• A. Patent ductus arteriosus
• B. Ventricular septal defect
• C. Atrial septal defect
• D. Coarctation of the aorta

Correct answer: A

Rationale: The correct answer is A, Patent ductus arteriosus. This condition is characterized by a continuous 'machine-like' murmur due to abnormal blood flow between the aorta and pulmonary artery. Ventricular septal defect (choice B) is characterized by a harsh holosystolic murmur, atrial septal defect (choice C) typically presents with a fixed split S2 and a pulmonary flow murmur, and coarctation of the aorta (choice D) is associated with a systolic murmur in the back and bilateral lower extremities.

3. The nurse is assessing a 3-day-old breastfed newborn who weighed 3400 g (7 pounds, 8 oz) at birth. The infant’s mother is now concerned because the infant weighs 3147 g (6 pounds, 15 oz). The most appropriate nursing intervention is what?

• A. Recommend supplemental feedings of formula.
• B. Explain that this weight loss is within normal limits.
• C. Assess the child further to determine the cause of excessive weight loss.
• D. Encourage the mother to express breast milk for bottle-feeding the infant.

Correct answer: B

Rationale: A neonate normally loses about 10% of the birth weight by age 3 to 4 days. The birth weight is usually regained by the 10th day of life. In this case, the weight loss from 3400 g to 3147 g is within the expected range. Therefore, the most appropriate action is to explain to the mother that this weight loss is within normal limits. Choice A is incorrect because supplemental feedings of formula are not indicated for this expected weight loss in a breastfed newborn. Choice C is incorrect as there is no evidence to suggest excessive weight loss at this point. Choice D is unnecessary at this stage and may not align with the current situation of normal weight loss post-birth.

4. According to Piaget, which principle supports a nine-year-old child's understanding that an arm will look the same when the IV is removed?

• A. The principle of conservation
• B. The principle of transductive reasoning
• C. The principle of identity
• D. The principle of reflex abilities

Correct answer: A

Rationale: The correct answer is A, the principle of conservation. Piaget's principle of conservation relates to a child's ability to understand that certain properties of objects remain unchanged despite modifications in their appearance. In this case, the child's understanding that an arm will look the same after the IV is removed demonstrates conservation of appearance. Choice B, transductive reasoning, involves making faulty generalizations based on specific instances and does not apply in this context. Choice C, the principle of identity, pertains to recognizing objects as the same even if they undergo transformations, which is not directly relevant to the scenario. Choice D, reflex abilities, refers to automatic responses to stimuli and is unrelated to the child's understanding of the arm's appearance post-IV removal.

5. According to Freud’s developmental theory, infancy is a stage of:

• A. Orality
• B. Latency
• C. Genitality
• D. Anality

Correct answer: A

Rationale: In Freud’s psychosexual development theory, the oral stage is the first stage and occurs during infancy. It focuses on activities involving the mouth, such as sucking and feeding. This stage is crucial for the child's development as it forms the basis for trust and attachment. Choices B, C, and D are incorrect as latency refers to the stage during middle childhood where sexual impulses are suppressed, genitality refers to the final stage focusing on mature sexual relationships, and anality refers to the stage occurring during the toddler years where toilet training plays a significant role.

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