Nursing Elites

1. What is the most critical physiologic change required of newborns at birth?

• A. Transition from fetal to neonatal breathing
• B. Body temperature maintenance
• C. Stabilization of fluid and electrolytes
• D. Closure of fetal shunts in the heart

Correct answer: A

Rationale: The correct answer is A: Transition from fetal to neonatal breathing. The onset of breathing is the most immediate and critical physiologic change required for the transition to extrauterine life. Factors that interfere with this normal transition increase fetal asphyxia, which is a condition of hypoxemia, hypercapnia, and acidosis. While body temperature maintenance, stabilization of fluid and electrolytes, and closure of fetal shunts in the heart are crucial changes in the transition to extrauterine life, breathing and the exchange of oxygen for carbon dioxide must take precedence as they are essential for newborn survival.

2. What is the first sign of puberty in boys?

• A. Enlargement of testes
• B. Decreased levels of testosterone
• C. Voice deepening
• D. Pubic hair

Correct answer: A

Rationale: The first sign of puberty in boys is typically the enlargement of the testes. This is due to the increase in production of testosterone, which leads to physical changes such as growth of the testes. Choice B, decreased levels of testosterone, is incorrect as puberty is marked by an increase in testosterone levels. Choice C, voice deepening, and choice D, pubic hair growth, usually occur later in the puberty process compared to testicular enlargement, making them incorrect answers.

3. What major complication is associated with a child with chronic renal failure?

• A. Hypokalemia
• B. Metabolic alkalosis
• C. Water and sodium retention
• D. Excessive excretion of blood urea nitrogen

Correct answer: C

Rationale: Water and sodium retention is a major complication in chronic renal failure, leading to hypertension and edema. Hypokalemia and metabolic alkalosis are less common, and while BUN levels rise, retention rather than excretion is problematic in chronic renal failure.

4. An infant is diagnosed with a tracheoesophageal fistula. Which assessment finding should the nurse expect?

• A. Jaundice
• B. Hyperactive bowel sounds
• C. Absence of sucking, vomiting
• D. Coughing, with excessive secretion

Correct answer: D

Rationale: Coughing with excessive secretion is a common sign of tracheoesophageal fistula. In this condition, the connection between the trachea and esophagus allows saliva and food to enter the airways, leading to coughing and excessive secretions. Choice A, jaundice, is not typically associated with tracheoesophageal fistula. Hyperactive bowel sounds (Choice B) are more likely seen in conditions like gastroenteritis. Absence of sucking and vomiting (Choice C) is not a typical finding related to tracheoesophageal fistula.

5. What is an essential nursing care intervention for a neonate with a suspected tracheoesophageal fistula?

• A. Feed glucose water only.
• B. Elevate the patient's head for feedings.
• C. Raise the patient's head and give nothing by mouth.
• D. Avoid suctioning unless the infant is cyanotic.

Correct answer: C

Rationale: Raising the patient’s head and giving nothing by mouth is crucial in managing tracheoesophageal fistula. This intervention helps prevent aspiration and further complications until surgical correction can be performed. Feeding the neonate or suctioning could exacerbate the condition by risking aspiration. Elevating the head for feedings does not address the primary concern of preventing oral intake, making it less appropriate than the correct answer.

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